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Today, SEO tools are an integral part of the process of optimizing a website for search engines.

Their use becomes even more flexible when they come in the form of extensions that you can install on your browser. As mundane as they seem, SEO extensions can deeply analyze your website and help you complete several other SEO tasks.

To better understand how this category of SEO tools works, I invite you to continue reading this article.

Chapter 1: What are SEO Browser ?

Before discussing what an SEO browser tool means, we will talk about the birth of tools in the form of browser extensions. 

1.1. What is the history of extensions in general?

Browser extensions saw the light of day in 1999 with the fourth update to Microsoft’s Explorer browser. But their popularity only became a reality years later after their invention.

The first extensions, called ”Explorer Bars”, are known to be toolbars that can be easily added to your browser to allow you to customize your browser to your needs.

Given the ease of navigation that extensions brought to Microsoft Explorer, other browsers were also interested in this technology.

For example :

  • Firefox was invented in 2004 with immediate adoption as a browser extension;
  • Opera mini also gave the possibility of adding extensions to its browser from 2009;
  • This is followed by Google and Safari in 2010;
  • And Microsoft Edge which also adopted this technology only in 2016.

Just as third-party developers and stores like the App Store and Google Play made apps popular, extensions quickly grew in popularity once they could be created and distributed through proprietary online stores.

1.2. What is an SEO browser extension?

An SEO browser tool is a small piece of software that not only makes changes to the way a user can visit web pages but also performs several tasks for the SEO of a website.

Search engine optimization is a fairly large discipline that encompasses a series of daily tasks.

In this case, an SEO browsers tool can help you automate SEO processes with features like:

  • Regular redirect checks;
  • Inspection of the metadata of your pages;
  • Checking for HTTP status codes;
  • Searching for broken links;
  • Etc. 

An SEO extension is usually focused on a single objective which should be easily understood. Even if the extension has multiple components or different levels of functionality, everything should contribute to achieving the same goal.

SEO browser extensions not only crawl a website or the internet in general, but also provide relevant information about your site’s SEO performance or keywords.

If you are looking for an SEO extension to improve the performance and user experience of your website, Google Chrome offers thousands of extensions in the Chrome Web Store just like other browsers such as Firefox and Opera which also offer a wide choice. .

Along with the three browsers mentioned above, Microsoft Edge also has a variety of extensions that provide additional specialized functionality, such as registration buttons for competitors’ social media pages and print functionality. your analysis reports in PDF.

It should also be noted that the same extension may be available for several different browsers at the same time.

Many browser SEO extensions are created by browser vendors themselves, while others come from third-party developer stores. 

In this case, it can be difficult to confirm the authenticity of certain SEO extensions.

Fortunately, most browsers offer a selection of recommended extensions based on the tasks you’re trying to perform on your site.

Chapter 2: What role can an SEO extension play on the natural referencing of your site?

SEO tools in the form of extensions for browsers can accomplish all SEO tasks that an online SEO tool and some can even go beyond:

2.1. Competitor Analysis

Browser SEO tools are able to provide you with not only the total number of keywords on a page, but also a comprehensive analysis of the density of those keywords.


Simply put, you can use SEO Browsers tools to learn about your competitors’ keyword strategy and understand how it helped them rank well on search engine results pages.

Having your knowledge of the keyword strategy that makes your competitor successful, you give yourself every chance of outranking him.

keywords target that gives you an edge in the market, SEO competitive analysis extensions tools allow you to understand how difficult it is to rank on each of those search terms and come to a conclusion. it would be more beneficial to look for unique keyword ideas.

2.2. Website Analysis

Browser SEO tools can cover a lot of areas on your website when it comes to technically examining it. 

  • Site performance 

Most extension tools allow you to study the technical SEO of a website through performance metrics.


Browser SEO tools with this feature allow you to improve your website’s SEO by usually offering performance metrics that you can use to help Google rank your site better.

For example, the timeliness metric is a performance metric that a browser SEO tool can provide to flag different URLs that block rendering of HTML stylesheets, scripts, and imports.

Also, a user’s first experience with your website is through the main content of your page. 

The first significant painting is therefore the metric provided by SEO tools for browsers to measure the performance of your website from this angle. Thus, the lower this score, the faster the loading in front of the user.

Additionally, browser SEO tools can test a website’s estimated input latency for a target score of, typically, 50ms.

By looking at performance metrics from multiple angles, you’ll get a clearer picture of how your site is progressing and what areas you need to focus on to increase your visibility.

Most of these tools suggest you improvement measures that not only help you rank higher on search engine results pages (SERPs), but also help you stay compliant with web development best practices.

  • Accessibility

Another technical analysis metric that browser SEO tools can offer relates to the accessibility of your website.


Essentially, it is a metric that provides opportunities to improve the availability and customer experience of your mobile app or website.

If you want to make sure your customers can easily use and navigate your site, SEO Browsers tools usually provide an accessibility improvement report that you can track.

Making your site accessible to everyone will allow more customers to find and use your products or services.

Not only does this give you a better chance of ranking well on search engine results pages, but your brand will be instilled in users’ heads and they will remember you.

Accessibility-focused SEO tools for browsers typically include settings like:

  • Element structure: This setting allows you to properly organize your HTML content to make your pages easier to read;
  • Shading Contrast : This setting simply ensures that anyone of any age can easily read your content;
  • Naming of elements: This parameter allows you to correctly name each element present on each page of your website;
  • Element descriptions: This helps ensure that search engines will read every element on your page effortlessly.

These tools certainly won’t be able to go through all the accessibility suggestions, but it will also tell you which audits you have passed, other checks that still need to be done.

  • Best Practices

Another crucial metric for browser SEO tools is measuring best practices.


While browser-based SEO tools don’t necessarily provide accurate performance data, they can offer suggestions to improve both your exposure and customer experience, especially for mobile sites.

  • SEO

is another metric that some browser SEO tools provide to help website designers and SEO specialists analyze their websites’ abilities to appear organically at the top in the SERPs.


SEO measurement provides key data to assess how well your page is optimized to rank in search engine results.

Many other SEO factors may not be taken into account by these tools, but the most important goals are still achievable.

2.3. Google Search Results Analysis

There are several browser SEO tools today that make in-depth keyword research more manageable, allowing you to quickly locate the keywords you want to target. In addition to general keywords, you can also study domain and page level metrics.

For example, with the Ahrefs SEO extension you will be able to find various metrics that can help you improve your website traffic:

  • Domain level 
  • metrics Ahrefs Rank;
  • Ahrefs domain ranking;
  • Backlinks;
  • Referring domain;
  • Organic search traffic;
  • Ranking of keywords.
  • Page-Level Domains
  • Ahrefs URL Ranking;
  • Backlinks;
  • Referring domains;
  • Organic Research;
  • Keyword difficulty.

By paying attention to this data, you will be able to better determine if targeting this keyword will benefit you.

2.4. Analyzing social metrics Social 

metrics let you know the number of times a webpage has been shared on social networking sites like Facebook, Twitter, and Google+.


For example, this information can be found in Open Site Explorer to prove the popularity or notoriety of a particular web page.

Although some people argue that social media metrics don’t impact organic search rankings, popular content can still drive significant traffic, so it’s worth paying attention to these numbers.

2.5. On-page element analysis

Simple browser extensions can be used to inspect HTML elements, which is important for SEO. 

With browser seo tools, you can study all the elements of a website that are important for optimization rather than having to manually check the source code or inspect specific elements. These individual elements of a page combine to define how optimized a web page is for search engines. 

By displaying everything in one place, SEOs can get quick and accurate information about a page’s optimization.

Speaking of on-page element, here are some examples you can get:

  • Page URL

As you well know us, URL is the address of a specific web page. 

For those looking to improve their website’s search engine ranking, it is crucial to check if the URL contains targeted keywords and if it is easy for users to read and navigate. 

Another thing to note about the URL, the flag that can sometimes be seen next to it symbolizes the target country of the web page.

  • page

title, also known as the title tag, is what appears at the top of a web browser window and on search engine results pages. It is important to ensure that your keyword is visible in the title tag for SEO purposes.


The title tag is the most important element for on-page optimization, it is what appears at the top of a web browser window and on search engine results pages. For this, you need to make sure to include your main keyword in your titles to make them more optimized.

It is also important to note that according to the rules on natural referencing, the title of a page must not exceed the first 70 characters. 

Luckily, many SEO plugins also list the character count of your title to help you stay within this limit.

  • Meta Description

Although the meta description does not directly affect search rankings, it is still an essential part of SEO. Indeed, the meta description describes a web page to searchers in the SERPs to guide their click decision.


For SEO purposes, it is important to prioritize keyphrases in the meta description so that they appear bold when customers search SERPs that include those specific words. 

There is also a limit of 155 characters according to Google that you must respect, this will be indicated to you when you use a good extension for SEO.

  • Content titles (H1, H2) 

Title tags are HTML elements which, as their name suggests, designate the titles of sections of a web page. They usually have an eye-catching style, like brighter colors or a more distinctive font size.


A great way to improve the ranking of your web pages is to ensure that the target phrase or keyword appears in your titles.

  • HTML text to text to code ratio

SEO extensions that offer this feature provide data about the size of the web page’s HTML file, such as the number of characters contained in that file. 

Thus, you will also be revealed the proportion of text actually written compared to the code on the website.

While the exact ratio doesn’t matter, web pages with more substantial content are more likely to rank for target keywords, as well as long-term variations.

  • Bold/Strong & Italic

Emphasizing your content with font changes such as bold or italic may affect readability, but the impact on SEO is not obvious enough.

  • Alt Text

On-page analytics extensions gather alt text data from all images on the page.

Alt text is an image attribute that replaces the image when it cannot be displayed and also provides search engines with information about the subject of the image. As search engines use this data to interpret images, alt text has become very important in on-page SEO.


Therefore, make sure that any image on a page on your website has alt text. Then check that it is relevant to the image and, if necessary, mention your target keyword.

  • HTTP Status

SEO extensions display information about unresponsive pages with a 200 status code. HTTP codes indicate whether a page is loading correctly, if there is a redirect, or what error occurs when it does not load.

If you want to ensure that link authority is passed to the new landing page, look for 301 redirects. Pages that use 302 redirects will not retain any link authority, so they should be avoided if possible.

If you surf the web frequently, chances are you’ve seen these status codes more than once:

  • 200 OK: This code indicates that the page you requested was successfully loaded;
  • 301 Moved Permanently: This means that the page you requested has been permanently moved to a new URL and you will be redirected there automatically. The advantage here is that the link authority of the old URL is still retained;
  • 302 Temporarily Moved: This code indicates that the page you are trying to access has been moved to a new URL, but this is only meant to be temporary. You will be automatically redirected, but the original URL will not retain its ranking or authority;
  • 403 Forbidden: This code indicates that the server does not allow you to see the URL. This restriction may be intentional;
  • 404 Not Found: This means that the page you requested could not be found on the server. This may be because the page no longer exists or there is an error in the URL;
  • 500 Internal Server Error: This code indicates that the web server is unable to load the requested page due to an error;
  • 503 Service unavailable: The web server is unavailable due to maintenance. 503 codes are set for specific times when the website should not be viewed for maintenance.


Schema.org is a tag-based approach to structuring data on the web, providing search engines with additional information about your content and site structure. 


Schema.org markup data can then be displayed in more attractive ways, such as in custom formats for reviews or business address information in search results.

So, there are browser SEO extensions these days that allow you to easily and effectively mark up your pages, videos, and products.

2.7. Analysis of the general attributes of a web page

Many extensions today can help you optimize the technical characteristics of a web page.

Although not necessarily visible, each element of a page can have a significant effect on the SEO of that page. This data lets you see how your efforts are affecting your site’s indexing and performance. 

Here’s an overview of what you’ll find:

  • Meta Robots

The Meta Robots tag, found in thesection of a web page’s HTML file, provides similar functionality to a robots.txt file, except that ‘it allows you to control search engine access from the code of a particular page.


The content of a web page’s robots meta tag is important for search engine optimization because it can determine whether or not a page will be indexed. For example, if the tag says “noindex”, all efforts to optimize the page will be wasted.

Tags are instructions that you give to search engines.

  • Rel=”canonical”

It is important to use the canonical tag to avoid duplicate content. 

It tells Google which main version of a web page among many others with similar content and which one should be indexed. 

For example, if you’re working on an e-commerce site, you might have different pages for each size and color of an item. 

By adding a rel=’canonical’ tag to pages that link to the main product page, you can ensure that only that page is indexed and not the others that are dedicated to each variant.

Adding self-referencing canonical tags to a webpage is a preventive measure to ensure that dynamically generated URLs, i.e. campaign markup, do not result in duplicate indexed content .

  • load

times Here you can also see how long the web page takes to load. This is important because a slow-loading website would discourage potential customers from staying on your site, which could lead to lower sales or conversions.


Not only do users not want to wait for a slow website, Google also considers page load time to be a ranking factor. If you’ve never checked your site’s speed, there are usually free extensions for that.

  • Google Cache URL

This is a cached version of the web page that some SEO extensions allow you to view and study, which is important for SEO. 

The cache lets you see if the page has been indexed and also provides insight into what Google sees when it crawls and indexes the page.

Chapter 3: How to find the right SEO plugin?

Before discussing the advice for choosing the best SEO browsers tool, here is a list of 5 of the most efficient on the market:

3.1. The best SEO extensions

Let’s quickly review this list:

3.1.1. SEO Quake by SEMrush

SEO Quake is a great tool for on-page optimization. In detail, this tool allows you to ensure that your website is structured in such a way that it ranks higher in search engine results. This includes adding relevant keywords, writing compelling meta descriptions, and more.

3.1.2. The Ubersuggest Extension

Ubersuggest is a Chrome extension that can take your SEO to the next level, according to Devin Ahern of Mid Florida Material Handling. It covers many SEO aspects like keyword ranking analysis, search volume per month of those search terms, backlinks and their sources, etc.

3.1.3. Mozbar

Mozbar Chrome SEO plugin gives you plenty of features to help you analyze web pages quickly. For example, when you search for a keyword on Google, the PA and DA scores appear under each search engine result, giving you useful information before you click on a page.

3.1.4. Similar Web

Similar Web is an SEO extension for Chrome and Firefox. It allows users to see website traffic data and key metrics for any site including engagement rate, traffic rank, keyword rank, and traffic source. If you want to find effective SEO methods or study web trends, this tool is perfect for you.

3.1.5. Serpstat Website SEO Checker

Serpstat plugin provides you with a comprehensive list of SEO metrics, analysis and tips. When you open a webpage and click on the Serpstat icon, you get a full domain SEO audit, including visibility, traffic, keyword count, top competitors in the domain, and more. 

Serpstat has three main features namely on-page SEO metrics, page analysis and domain analysis. These features are essential to help you improve your website’s search engine rankings.

3.2. The best ways to select the right SO extension

Although SEO extensions are very practical and have very good performance as a natural referencing tool, they can seem compromising.

To do this, here are the best practices to adopt:

  • Do not install too many extensions: Having too many unnecessary extensions running on your browsers can slow down your computer and make it more vulnerable to attacks, so keep only a few – some of the most essential;
  • Install extensions only from official web stores : Security specialists thoroughly review all SEO tools offered in official stores to ensure that they are safe and reliable;
  • Pay attention to the permissions required by the extensions: If an extension already installed on your computer asks for a new authorization, this should immediately raise your doubts about its security. Always check an extension’s permissions and make sure they match the app’s functionality before installing it. If you can’t find a logical explanation why certain permissions are needed, it’s probably best not to install it.


In general, browsers/navigators SEO tools are modules that you can simply add to your browser in order to fulfill natural referencing tasks on your website such as competition analysis, site performance study, keyword research, etc. In this article, we have detailed everything you need to know about SEO Browsers tools.