Technical SEO: The Definitive Guide

Technical SEO

Technical SEO is the most important part of Search Engine Optimization. Pages of any website need to be crawlable and indexable for ranking it on Search engines but there are also many other things that can give minimal impact to content and links.

Main Topics For Technical SEO

  • Technical SEO basics
  • Crawling
  • Indexing
  • Page experience signals
  • Search Console Insights
  • Core Web Vitals
  • HTTP
  • Mobile-friendliness
  • Safe browsing
  • Broken links
  • Redirect chains
  • Duplicate Versions
  • Robots.txt
  • Inspect URL Feature
  • Sitemap
  • Structured Data

Technical SEO Tools

  • Google Search Console
  • Google PageSpeed Insights
  • Google Analytics
  • Google's Mobile-Friendly Test
  • Ahrefs SEO Toolbar
  • Structured Data Markup Helper

Technical SEO Basic

Technical SEO is the process of optimizing your website for helping various search engines like Google can find, crawl, understand, and index your pages. The main goal is to be found and improve the rankings of websites.


Basically, Crawlers get your content from pages and use the links on those pages to find more pages. And this process let’s them find content on the web. There are various systems in this process, we should learn first.

How Google Builds its search index



URL sources

A crawler has to start somewhere. Generally, they would create a list of all the URLs they find through links on pages. A secondary system to find more URLs are sitemaps that are created by users or various systems that have lists of pages.

Crawl queue

All the URLs that need to be crawled or re-crawled are prioritized and added to the crawl queue. This is basically an ordered list of URLs Google wants to crawl.


This is the system that looks for the content of the pages and grabs them.

Processing systems

These are the systems that handle canonicalization, send pages to the renderer which loads the page like a browser does, and process the pages to get more URLs to crawl.


The renderer loads a page like a browser does along with JS and CSS files. This is done so that Google can see what most users will see. 


These are the stored pages that Google shows to users from its Search Engine.

Crawl controls

There are a few ways you can control what gets crawled on your website. Here are a few options.

Crawl adjustments

Each website is going to have a different crawl budget, which is a combination of how often Google wants to crawl a site and how much crawling your site allows.

If crawlers see signs of stress while crawling your website, they’ll typically slow down or even stop crawling until conditions improve.


Indexing, this term means the URLs or pages that are being stored in a Search engine to show them to their users and rank your website.

There are two types of the things you can do for indexing or not indexing any of your pages or URLs that are:

Robots Directive

A robots meta tag is an HTML snippet that informs search engines how to crawl or index a page. It is placed into the head section of a web page and it looks like this:

To Index:

<meta name="robots" content="index" />

To not index:

<meta name="robots" content="noindex" />


It simply means, if your website or its pages having multiple versions of the same page then Google will select one to store in their index. This process is called canonicalization and the URL selected as the canonical will be the one Google shows in search results. We can mark canonical or canonical tags if any of our pages having no original version like if any of your pages don’t have other versions and if any page having other versions too then you can mark your original version as canonical to other versions.

There are many signals they use to select the canonical URLs including:

  • Canonical tags
  • Duplicate pages
  • Internal links
  • Redirects
  • Sitemap URLs

If you want to index a page in Google or want to see how Google has indexed a page is to use the URL Inspection Tool in Google Search Console. It will show you the Google-selected canonical URL.

Page Experience Signals

Earlier this year, Google enabled Mobile Speed as must ranking factor to rank your website on Google. It means to rank well in search engine, you should have to pass all the core web vitals at least. They cover all the aspects of website that impact user experience (UX).

Google search signals

Search Console Insights

Search Console Insights is a new feature released recently in Google Search Console which is in Beta Phase yet and it is a new experience for content creators and publishers and this can help in understanding how audiences discover their site’s content and what resonates with their audiences. This new experience collects data from both Google Search Console and Google Analytics.

Search Console Insights

Core Web Vitals

These are the speed metrics that are part of Google’s Page Experience signals which are being used to measure user experience and performance of your mobile site. The metrics measure visual load with largest content full paint (LCP), visual stability with Cumulative Layout Shift (CLS), and interactivity with First Input Delay (FID).

Now from March (2021), you should pass all these metrics to get a better ranking of your website in Google. As you also know the faster you provide results you will be ranked better.


HTTPS protects the communication between your browser and server from being intercepted and tampered with by attackers and hackers. This provides confidentiality, and authentication to the vast majority of today’s WWW traffic. You want your pages loaded over HTTPS and not HTTP.

Any website that shows a lock icon in the address bar is using HTTPS.


This is the part of technical SEO that is you have to confirm your website is loading fine on mobile or responsive for Mobile users or not. You can check this from Google Search Console or Google Mobile Friendly Tester.

Google Mobile Friendly Test

Safe Browsing

This check identifies the page or website that doesn’t have any malware, deceptive pages, or harmful downloads.

Broken links

These are the links that are present on your site that points to non-existing resources or those links are present in past but now it doesn’t appear to be working or 404.

Redirect chains

Redirect chains are the series of redirects that present between the initial URL and destination URLs.

Duplicate Versions

A website having multiple versions of its URLs can be called duplicate versions like if any website starts with HTTP:// and HTTPS:// and http://www/ or https://www. Then it will be called duplicate versions. Or if any pages having a similar URL with almost the same content then it is also called duplicate versions.


If you want to remove or include in the search index any page then you can use robots.txt for doing this. It simply informs search engines what to crawl or whatnot. 

Inspect URL Feature

With the help of this feature, you can get live information about your URLs in search results or how search engine looks about your page and what are the issues they got for your pages.


A sitemap is the list of all the URLs present on your website and those you want to index in search engines you can list them in an XML file or txt file and submit them into webmasters tools.

Structured Data

Structured data is a format for providing information about a page and classifying the content of a page; for example, on a recipe page, what are the ingredients, the cooking time and temperature, and so on.

Google uses structured data that it finds on the web to understand the content of the page, as well as to collect information about the web and the world in general.

Technical SEO Tools

There are some Tech SEO Tools that can help you to analyze your website performance on the search engines as well as analyzing traffic on your website, how search engines look at your website for providing ranking and viewers.

Google Search Console

This is the most popular SEO tool that can help you to analyze your website pages, performance, and links to your website including many more things. You can read more about it from here. Also, they offer support for your website related to SEO issues by their Search Central Help Communities.

Bing Webmaster Tools

Like Google Search Console, Bing Webmaster Tools also having almost the same features and processes to make any website live into Bing Search Engine. They also offer one rare feature to analyze your website via creating a report within just a few clicks. They also offer support regarding their webmaster and your website SEO issues from email support.

Google PageSpeed Insights

With the help of this tool, you can analyze the speed of your website pages free of cost.

Google Analytics

This tool helps in getting the very performance of your website including page views, old data of page views, real-time page visitor data, etc. You can check everything related to your website traffic including some advanced tracking processes that can be more helpful while your website is an eCommerce website. With the help of this, you can track android or IOS applications as well as websites. This tool is also provided free services.

Google's Mobile-Friendly Test

With the help of this free tool, you can check your website is whether mobile-friendly or not. Also, you can get detailed results for the same so that you can fix all the issues regarding this.


With all the above points, you can take help all of these to rank better in the search results by taking an analysis of your websites. If you still need any help regarding technical SEO then you can contact us.