SEO stands for Search Engine Optimization. It is the practice of optimizing websites and content to rank higher in search engine results pages (SERPs) for specific keywords or phrases. The goal of SEO is to increase organic traffic to a website by improving its visibility in search engines like Google, Bing, and Yahoo.
Search engines use complex algorithms to determine which websites should be ranked higher than others for particular search queries. SEO involves optimizing various on-page and off-page elements of a website, including content, keywords, meta tags, backlinks, site structure, and user experience, among others. By improving these elements, a website can increase its relevance and authority in the eyes of search engines, leading to higher rankings and more visibility in search results.
SEO involves both technical and creative elements, and it requires ongoing efforts to maintain and improve a website’s ranking over time. The ultimate goal of SEO is to provide users with the most relevant and helpful content for their search queries, while also helping businesses attract more qualified leads and customers.
How SEO Work
SEO works by optimizing a website’s on-page and off-page elements to make it more visible and relevant to search engines for specific search queries. Search engines use complex algorithms to analyze websites and determine which ones are the most relevant and authoritative for a particular search term.
On-page SEO involves optimizing the content and structure of a website. This includes factors such as keyword research, meta tags, headings, content quality, and site structure. By optimizing these elements, a website can improve its relevance and authority in the eyes of search engines.
Off-page SEO involves building backlinks, social signals, and other external factors that signal to search engines that a website is authoritative and trustworthy. This includes tactics such as guest blogging, influencer outreach, and social media promotion.
Search engines use bots or crawlers to scan websites and collect information about their content, structure, and links. The information collected by these bots is then analyzed and indexed to determine which websites are the most relevant and authoritative for particular search queries.
By optimizing your website’s on-page and off-page elements, you can improve its relevance and authority for specific search queries, which can help improve your website’s ranking in search results pages. However, SEO is an ongoing process, and it takes time and effort to see meaningful results. It’s essential to stay up-to-date on SEO best practices and algorithm updates to ensure your website remains optimized over time.
Table of Contents
Types of SEO
There are generally three types of SEO that businesses can use to improve their online visibility and rankings:-
- On-page SEO
- OFF-page SEO
- Technical SEO
On-page SEO

On-page SEO refers to the practice of optimizing individual pages on a website to improve their visibility and ranking in search engine results pages (SERPs). The goal of on-page SEO is to make the content more relevant and useful to users, and to ensure that search engines can understand and index the content properly.
Some key elements of on-page SEO include:
Keyword research:
Keyword research is the process of identifying the most relevant and high-traffic keywords that people use to search for information, products, or services related to a particular business or industry. It is an important aspect of SEO as it helps businesses understand what their target audience is searching for and how to optimize their content to rank for those keywords.
Some key steps involved in keyword research include:
- Identifying the main topics and themes related to the business or industry.
- Using keyword research tools, such as Google Keyword Planner, SEMrush, or Ahrefs, to identify relevant and high-traffic keywords related to those topics.
- Analyzing the search volume, competition, and relevance of each keyword to determine its potential value.
- Narrowing down the list of keywords to focus on the most relevant and high-value ones.
- Incorporating those keywords into the website’s content, including page titles, meta descriptions, headers, and body content.
- Continuously monitoring and refining the keyword strategy based on changes in search behavior and competition.
Title Tags
Title tags are a critical aspect of on-page SEO as they provide search engines and users with a brief and concise description of what a web page is about.
Here are some key tips for optimizing title tags for on-page SEO:
- Use relevant keywords: Incorporate relevant and high-traffic keywords into the title tag to signal to search engines what the page is about.
- Keep it concise: Title tags should be no longer than 60-70 characters to ensure that they are fully displayed in search engine results pages (SERPs).
- Write compelling titles: Create titles that are descriptive and compelling to attract clicks from users in SERPs.
- Include brand name: Incorporate the brand name in the title tag to improve brand recognition and trust.
- Use unique titles: Ensure that each page on the website has a unique title tag to avoid confusion and duplication.
- Front-load keywords: Place the most important keywords at the beginning of the title tag to maximize their visibility and importance.
- Avoid keyword stuffing: Do not overuse keywords in the title tag as it can result in keyword stuffing and penalties from search engines.
By optimizing title tags for on-page SEO, businesses can improve the visibility and relevance of their web pages in search engine results, resulting in higher organic traffic and potential customers.
Meta description
meta descriptions refer to the process of optimizing the meta descriptions of a webpage to improve its visibility and relevance in search engine results pages (SERPs).
Here are some key steps to optimize the meta descriptions of a webpage for on-page SEO:
- Keep it concise: Write a meta description that is no longer than 155-160 characters to ensure that it is fully displayed in SERPs.
- Write a compelling summary: Create a concise and compelling summary of the content on the web page that entices users to click through.
- Use relevant keywords: Incorporate relevant and high-traffic keywords into the meta description to signal to search engines what the page is about.
- Avoid duplication: Ensure that each page on the website has a unique meta description to avoid duplication and confusion.
- Highlight value proposition: Emphasize the value proposition of the content on the web page to differentiate it from other search results and entice users to click through.
- Match content: Ensure that the meta description accurately reflects the content on the web page to avoid misleading users and potential penalties from search engines.
- Use action-oriented language: Incorporate action-oriented language, such as “Learn more,” “Discover,” or “Find out,” to entice users to click through.
By optimizing the meta descriptions of a webpage for on-page SEO, businesses can improve the click-through rate and relevance of their web pages in search engine results, resulting in higher organic traffic and potential customers.
Header tags
On-page SEO header tags refer to the process of optimizing the header tags of a webpage to improve its visibility, structure, and relevance in search engine results pages (SERPs).
Here are some key steps to optimize the header tags of a webpage for on-page SEO:
- Use H1 tag for main title: Use the H1 tag for the main title of the page to indicate to search engines and users what the page is about.
- Use H2-H6 tags for subheadings: Use H2-H6 tags for subheadings to organize the content and hierarchy of the page.
- Incorporate relevant keywords: Use relevant keywords in the header tags to signal to search engines what the page is about.
- Keep it concise: Keep the header tags concise to ensure that they are easy to read and scan.
- Use proper hierarchy: Follow a proper hierarchy for the header tags, with H1 being the main title and H2-H6 being subheadings in descending order of importance.
- Use unique header tags: Ensure that each header tag is unique to avoid confusion and duplication.
- Use semantic structure: Use semantic structure to indicate the relationships between header tags and the content on the page.
By optimizing the header tags of a webpage for on-page SEO, businesses can improve the structure, relevance, and organization of their web pages, resulting in higher visibility, traffic, and potential customers.
Content optimization
Content optimization is the process of improving the quality, relevance, and structure of the content on a webpage to improve its visibility and relevance in search engine results pages (SERPs).
Here are some key steps for optimizing the content on a webpage for on-page SEO:
- Conduct keyword research: Conduct keyword research to identify relevant and high-traffic keywords to target in the content.
- Use relevant keywords: Incorporate relevant keywords into the content, including the title, headers, and body, to signal to search engines what the page is about.
- Use proper formatting: Use proper formatting, such as headers, bullet points, and bold/italic text, to improve the readability and structure of the content.
- Use internal linking: Incorporate internal linking to other relevant pages on the website to improve the user experience and signal to search engines the relationships between pages.
- Use external linking: Incorporate external linking to relevant and authoritative sources to improve the credibility and value of the content.
- Use multimedia: Incorporate multimedia, such as images, videos, and infographics, to improve the engagement and shareability of the content.
- Use meta tags: Use relevant meta tags, such as title tags and meta descriptions, to accurately describe and promote the content in SERPs.
By optimizing the content on a webpage for on-page SEO, businesses can improve the quality, relevance, and structure of their web pages, resulting in higher visibility, traffic, and potential customers.
Image optimization
Image optimization is the process of improving the quality, relevance, and structure of the images on a webpage to improve its visibility and relevance in search engine results pages (SERPs).
Here are some key steps for optimizing images for on-page SEO:
- Use high-quality images: Use high-quality images that are relevant and visually appealing to the target audience.
- Optimize file size: Optimize the file size of the images to reduce loading times and improve the user experience.
- Use descriptive file names: Use descriptive file names that accurately describe the content of the image and incorporate relevant keywords.
- Use alt tags: Use alt tags to describe the content of the image for users who may not be able to view the image, as well as to signal to search engines the relevance and context of the image.
- Use proper formatting: Use proper formatting, such as captions and alignment, to improve the readability and structure of the images.
- Use relevant file types: Use relevant file types, such as JPEG, PNG, and GIF, to optimize the quality and loading times of the images.
- Use proper placement: Use proper placement of the images in the content to improve the user experience and engagement with the page.
By optimizing the images on a webpage for on-page SEO, businesses can improve the quality, relevance, and structure of their web pages, resulting in higher visibility, traffic, and potential customers.
Internal linking
Internal linking is the practice of linking to other pages within the same website. This not only helps users navigate the website, but also provides several benefits for on-page SEO.
Here are some key steps for optimizing internal linking for on-page SEO:
- Use descriptive anchor text: Use descriptive anchor text that accurately describes the content of the linked page and incorporates relevant keywords.
- Use relevant linking: Use relevant linking to other pages on the website that are related to the content on the current page.
- Use proper placement: Use proper placement of internal links within the content to improve the user experience and engagement with the page.
- Use proper quantity: Use a proper quantity of internal links that are necessary for the user and content, but avoid overusing them to avoid confusing the user or appearing spammy.
- Use a proper hierarchy: Use a proper hierarchy for internal links, with main navigation links at the top and more specific links deeper in the content.
- Use sitemap: Use sitemaps to ensure all pages are linked and discoverable.
By optimizing internal linking for on-page SEO, businesses can improve the user experience and engagement on their website, as well as improve the relevance and context of their content in search engine results pages (SERPs).
Off-page SEO

Off-page SEO refers to the actions taken outside of a website to improve its visibility and ranking in search engine results pages (SERPs). The goal of off-page SEO is to increase the authority, credibility, and popularity of a website through link building, social media marketing, and other external factors.
Some key elements of off-page SEO include:
Link building
Link building is the process of acquiring links from other websites to your own website. This practice is important for off-page SEO, as search engines view links from other websites as a sign of authority and relevance.
Here are some key steps for optimizing link building for off-page SEO:
- Identify high-quality, relevant websites: Identify high-quality, relevant websites that are related to your industry or topic, and have a good reputation and authority.
- Develop relationships: Develop relationships with other website owners and influencers in your industry to gain their trust and potentially earn links.
- Create valuable content: Create valuable and shareable content, such as blog posts, infographics, and videos, that other websites will want to link to.
- Guest posting: Write guest posts for other high-quality websites in your industry, and include links back to your own website in your author bio or within the content itself.
- Broken link building: Find broken links on other websites, and offer to replace them with your own relevant content that includes a link back to your website.
- Use social media: Use social media to promote your content and build relationships with other influencers and website owners in your industry.
By optimizing link building for off-page SEO, businesses can improve the authority, relevance, and visibility of their website in search engine results pages (SERPs), resulting in higher traffic, leads, and potential customers.
Social media marketing
Social media marketing refers to the practice of using social media platforms to promote a business, brand, product or service. It involves creating and sharing content on social media networks such as Facebook, Twitter, LinkedIn, Instagram, and YouTube, among others.
Here are some key steps for optimizing social media marketing:
- Define your target audience: Identify your target audience and the social media platforms they use, to ensure that your content reaches the right people.
- Develop a content strategy: Create a content strategy that aligns with your business goals and resonates with your target audience. Use a variety of formats such as images, videos, infographics, and blogs to create engaging and shareable content.
- Engage with your audience: Engage with your followers and respond to their comments and messages in a timely manner. This will help to build a community and improve customer loyalty.
- Use social media advertising: Use social media advertising to reach a wider audience and drive traffic to your website. Platforms like Facebook, Twitter, and LinkedIn allow businesses to target specific demographics and interests.
- Measure and analyze your results: Use analytics tools to measure the success of your social media marketing campaigns. Analyze metrics such as reach, engagement, and conversions to identify areas for improvement and adjust your strategy accordingly.
By optimizing social media marketing, businesses can increase their brand awareness, build customer relationships, and drive traffic and sales to their website.
Online directories
Online directories are websites that list businesses, products, or services and provide relevant information such as contact details, location, business hours, and customer reviews. They are a valuable tool for businesses looking to improve their online presence and reach a wider audience.
Here are some key steps for optimizing online directories for business:
- Claim your listings: Claim your business listings on popular directories such as Google My Business, Yelp, and Yellow Pages. This ensures that your information is accurate and up-to-date, and that you are able to manage your online reputation.
- Provide accurate and detailed information: Provide accurate and detailed information about your business, including your contact details, business hours, location, and services. This helps potential customers find and contact you easily.
- Encourage customer reviews: Encourage your customers to leave reviews on your online directory listings. Positive reviews can improve your reputation and help you rank higher in search engine results pages (SERPs).
- Optimize your listing for SEO: Optimize your listing for search engine optimization (SEO) by including relevant keywords in your business description and other listing details.
- Monitor your listings: Monitor your listings regularly for accuracy and respond to any customer feedback or questions in a timely manner. This helps to improve customer engagement and satisfaction.
By optimizing online directory listings for business, you can improve your online visibility, reputation, and reach more potential customers.
Guest blogging
Guest blogging is the practice of writing and publishing blog posts on other websites in order to reach a wider audience and increase brand visibility. It is a popular content marketing strategy that can help businesses build relationships, establish thought leadership, and drive traffic back to their own website.
Here are some key steps for optimizing guest blogging:
- Identify relevant blogs: Identify relevant blogs in your industry or niche that have a large and engaged audience. Look for blogs that have a similar target audience and content that aligns with your own brand and messaging.
- Research and pitch your ideas: Research the blog and its content to get a better understanding of their style, tone, and audience. Pitch your guest blog ideas to the blog owner or editor and make sure they align with the blog’s content strategy.
- Write high-quality content: Write high-quality and engaging content that provides value to the blog’s audience. Make sure your content is original, well-researched, and offers a unique perspective on the topic.
- Include a bio and links: Include a brief bio about yourself and your business, along with links to your website and social media profiles. This helps to establish your credibility and drive traffic back to your own website.
- Promote your guest post: Promote your guest post on your own website and social media channels to drive traffic to the blog and increase your own visibility.
By optimizing guest blogging, businesses can increase their brand awareness, reach a wider audience, and establish themselves as thought leaders in their industry or niche.
Brand mentions
Brand mentions refer to any online reference of a brand, such as the brand name, product name, or related keywords on websites, social media, or other digital channels. They can occur as direct or indirect mentions, and can have a positive or negative impact on a brand’s reputation and visibility.
Here are some key steps for optimizing brand mentions:
- Monitor your brand mentions: Monitor your brand mentions regularly using tools like Google Alerts, Mention, or Brand24. This helps you stay informed of any online conversations or reviews related to your brand.
- Respond to brand mentions: Respond to both positive and negative brand mentions in a timely and professional manner. This helps to improve customer engagement, loyalty, and satisfaction.
- Encourage positive brand mentions: Encourage your customers, followers, and brand advocates to share positive reviews and feedback about your brand on social media and other online platforms.
- Build relationships with influencers: Build relationships with influencers and industry experts who can help promote your brand and increase your visibility through their own channels.
- Use brand mentions for SEO: Use brand mentions to improve your search engine optimization (SEO) by including links back to your website and other online assets.
By optimizing brand mentions, businesses can improve their online reputation, increase their visibility, and engage with their customers and audience more effectively.
Technical SEO

Technical SEO refers to the optimization of the technical aspects of a website to improve its visibility and ranking in search engine results pages (SERPs). It involves making sure that the website’s structure, design, and performance are optimized for search engines and user experience.
Some key elements of technical SEO include:
Site structure and architecture
Site structure and architecture refer to the organization and arrangement of a website’s content, pages, and links. A well-organized and intuitive site structure helps search engines and users navigate a website more easily, improves user experience, and can contribute to better search engine rankings.
Here are some key steps for optimizing site structure and architecture:
- Plan your site structure: Plan your site structure and organize your content into categories and subcategories that are easy to understand and navigate. Use a logical hierarchy and avoid creating too many levels or categories.
- Use descriptive and user-friendly URLs: Use descriptive and user-friendly URLs that include relevant keywords and make sense to users and search engines. Avoid using long and complex URLs or generic names.
- Create a clear navigation menu: Create a clear and easy-to-use navigation menu that helps users find the information they need quickly and easily. Use descriptive labels and avoid using too many menu items or submenus.
- Optimize internal linking: Optimize internal linking by linking related pages and content together, using descriptive anchor text, and avoiding broken or dead links.
- Use structured data: Use structured data to provide search engines with additional information about your website’s content and structure. This can help improve search engine rankings and visibility.
By optimizing site structure and architecture, businesses can improve user experience, increase search engine rankings, and drive more traffic to their website.
Site speed and performance
Site speed and performance refer to how quickly and efficiently a website loads and functions. A fast and reliable website is essential for providing a positive user experience and improving search engine rankings.
Here are some key steps for optimizing site speed and performance:
- Use a reliable hosting provider: Use a reliable hosting provider that can handle your website’s traffic and provide fast and consistent server response times.
- Optimize images and media: Optimize images and media by compressing file sizes, using the right file format, and reducing the number of requests.
- Minimize HTTP requests: Minimize HTTP requests by reducing the number of files, scripts, and stylesheets loaded on each page.
- Use caching: Use caching to store frequently accessed files and data in the user’s browser, reducing the need to reload them on each page visit.
- Minimize code and scripts: Minimize code and scripts by removing unnecessary elements, using minified code, and eliminating render-blocking resources.
- Monitor and optimize page load times: Monitor and optimize page load times using tools like Google PageSpeed Insights or GTmetrix. This helps identify areas for improvement and measure the impact of your optimization efforts.
By optimizing site speed and performance, businesses can improve user experience, reduce bounce rates, and improve search engine rankings.
Mobile optimization
Mobile optimization refers to the process of designing and optimizing a website for mobile devices such as smartphones and tablets. As more and more people access the internet on mobile devices, having a mobile-friendly website is essential for providing a positive user experience and improving search engine rankings.
Here are some key steps for optimizing a website for mobile devices:
- Use a responsive design: Use a responsive design that automatically adjusts the layout and content of your website to fit the user’s screen size and device orientation.
- Optimize images and media: Optimize images and media for mobile devices by using smaller file sizes, appropriate resolutions, and the right file format.
- Simplify navigation and menus: Simplify navigation and menus by using fewer menu items and a simpler, more intuitive menu structure.
- Use large, readable fonts: Use large, readable fonts that are easy to read on smaller screens.
- Avoid pop-ups and interstitials: Avoid using pop-ups and interstitials that can be difficult to close on mobile devices.
- Optimize page speed and performance: Optimize page speed and performance by minimizing file sizes, reducing the number of requests, and using caching.
- Test and optimize for different devices: Test and optimize your website for different devices and screen sizes to ensure a consistent and positive user experience across all devices.
By optimizing a website for mobile devices, businesses can improve user experience, increase engagement and conversions, and improve search engine rankings.
Duplicate content
Duplicate content refers to content that appears in more than one location on the internet, either on the same website or on different websites. This can cause problems for search engines, as they struggle to determine which version of the content is the original or most relevant.
Duplicate content can harm your website’s search engine rankings in several ways:
- Splitting of page authority: When multiple versions of the same content exist, search engines have to decide which version is the most relevant and authoritative. This can lead to splitting of page authority and dilution of the ranking power of each page.
- Penalization by search engines: Search engines may penalize websites that have duplicate content, either by reducing their rankings or by removing them from search results altogether.
- Confusion for users: Duplicate content can also confuse users, who may encounter the same content multiple times and be unsure which version to trust or engage with.
To avoid duplicate content issues, it’s important to follow these best practices:
- Create unique and original content: Create unique and original content that provides value to users and helps to differentiate your website from competitors.
- Use canonical tags: Use canonical tags to indicate which version of a page is the original or preferred version.
- Avoid scraping content: Avoid scraping content from other websites or using content that has been used on other websites.
- Monitor and resolve duplicate content issues: Monitor your website for duplicate content issues and take steps to resolve them as soon as possible.
By following these best practices, you can avoid duplicate content issues and ensure that your website provides a positive user experience while maintaining its search engine rankings.
XML sitemap
An XML sitemap is a file that lists all the pages on a website and provides important information about each page to search engines. It is a file that is created in XML format and is submitted to search engines to help them crawl and index the pages of a website more efficiently.
An XML sitemap can include information such as the last modified date of a page, the frequency of updates, and the priority of the page relative to other pages on the site. This information helps search engines understand the structure of a website and prioritize crawling of pages based on their importance.
Submitting an XML sitemap to search engines is an important step in SEO because it can help improve the visibility of a website in search results. It helps search engines discover and index new pages more quickly and ensures that all pages on a website are indexed.
To create an XML sitemap, there are many free and paid tools available that can generate the sitemap automatically. Once created, the sitemap can be submitted to search engines using tools like Google Search Console or Bing Webmaster Tools.
In summary, an XML sitemap is a file that lists all the pages on a website and provides important information to search engines to help them crawl and index the pages more efficiently. It is an essential component of SEO and can help improve the visibility of a website in search results.
Robots.txt
Robots.txt is a file that website owners use to communicate with search engine crawlers and other web robots. It is a simple text file that is placed in the root directory of a website and contains instructions for crawlers about which pages or sections of the website should not be crawled or indexed.
The main purpose of the robots.txt file is to control which parts of a website are accessible to search engine crawlers and other web robots. By using the file, website owners can prevent crawlers from accessing pages or sections of their site that they don’t want to be indexed in search results.
The format of the robots.txt file is simple. Each directive is a command that tells a web crawler what to do. Some of the common directives include:
- User-agent: This is used to specify the web crawler or user agent that the directive applies to.
- Disallow: This is used to specify the pages or sections of a website that should not be crawled or indexed.
- Allow: This is used to specify pages or sections of a website that should be crawled or indexed.
- Sitemap: This is used to specify the location of the XML sitemap for the website.
It’s important to note that the robots.txt file is only a suggestion to search engine crawlers and not a guarantee that the specified pages or sections of the website will not be indexed. Some crawlers may ignore the robots.txt file or interpret it differently, so it’s important to use other techniques like meta tags or password protection to restrict access to sensitive content.
In summary, robots.txt is a simple text file that website owners can use to control which parts of their site are accessible to search engine crawlers and other web robots. By using this file, website owners can prevent search engines from indexing pages or sections of their site that they don’t want to appear in search results.
HTTPS and SSL
HTTPS (Hyper Text Transfer Protocol Secure) is the secure version of the HTTP protocol used to transmit data over the internet. It uses a secure socket layer (SSL) or transport layer security (TLS) protocol to encrypt data between the user’s browser and the web server. This ensures that the data being transmitted between the user’s browser and the server is secure and cannot be intercepted or tampered with by attackers.
SSL (Secure Sockets Layer) is a cryptographic protocol that provides secure communication over the internet. It uses a combination of public and private key encryption to protect the data being transmitted between the user’s browser and the web server. SSL ensures that the data being transmitted is private, secure, and cannot be intercepted by attackers.
To enable HTTPS on a website, a website owner must obtain an SSL certificate from a trusted certificate authority (CA). The SSL certificate contains information about the website owner, the website domain, and the SSL encryption key. Once the SSL certificate is installed on the web server, the website will use HTTPS to transmit data securely.
There are several benefits of using HTTPS and SSL for a website. Firstly, it provides security and privacy for users by encrypting data transmission between the browser and the server. Secondly, it helps build trust with users by indicating that the website is legitimate and trustworthy. Additionally, Google and other search engines prioritize websites that use HTTPS in their search results, which can improve the website’s search engine ranking.
In summary, HTTPS and SSL provide a secure and encrypted connection between the user’s browser and the web server. It helps protect the data being transmitted and improves the website’s security and trustworthiness. Obtaining an SSL certificate and enabling HTTPS on a website is an important step in improving website security and SEO.
SEO Tools
There are a variety of SEO tools available that can help you optimize your website for search engines. Some of the most popular ones include:
- Google Analytics – A free tool that provides data on website traffic, user behavior, and conversions.
- Google Search Console – Another free tool from Google that helps you monitor and improve your website’s performance in search results.
- SEMrush – A comprehensive SEO tool that allows you to analyze keywords, track rankings, and monitor competitors.
- Ahrefs – A popular tool that provides keyword research, backlink analysis, and content analysis.
- Moz – A suite of SEO tools that includes keyword research, link building, and site auditing.
- Yoast SEO – A plugin for WordPress that helps you optimize your website’s content for search engines.
- Screaming Frog – A website crawler that analyzes site structure, identifies broken links, and provides other technical SEO insights.
These tools can help you identify areas for improvement on your website, monitor your competitors’ activities, and track your progress over time. However, it’s important to remember that these tools are only as effective as the strategies you use to implement their insights. So, it’s essential to have a solid understanding of SEO best practices to get the most out of these tools
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