Most Important SEO Optimization Tools Free! (1)

22 Most Important SEO Optimization Tools Free!

While everyone tells you to optimize your website and content, nobody tells you how. Honestly, it’s simple; you need the expertise and the right SEO optimization tools.

Content optimization takes time and effort but is worth every penny. Using the right tools can help you optimize your site and ensure that your content is suitable for the search engine.

In this article, we have compiled the best SEO optimization tools free for you to boost your website visibility. So, let’s get started!

Best SEO optimization tools & techniques

Google Ads Keyword Planner

You ask an SEO expert their favorite keyword research tool, and Google Ads Keyword Planner is among the top answers. If you wonder why, we’d say “who doesn’t like good SEO optimization tools online for free?”

Google Ads Keyword Planner is easy to use, even if you have no SEO knowledge. Enter a keyword or search term, select a location, and search; it will give you hundreds of related keywords. This free tool also provides you insights into metrics like:

  • Search volume
  • Competition
  • Three-month change
  • Year-on-year change
  • Top-of-page bid

Keyword Planner offers a wide range of filters to ensure you get exactly what you want. While it gives you quick keyword suggestions, you need to run an ad campaign to get exact search volumes.

Google PageSpeed Insights

Typically, businesses believe content optimization is restricted to finding and using keywords in your content. However, page loading speed plays a critical role in increasing session duration. Google PageSpeed Insights helps you analyze your website’s speed on multiple devices, including mobile and desktop.  

Entering the URL into Google PageSpeed Insights gives your website’s speed insights ranking between 0 and 100. It also shows suggestions to solve the issue. What’s better than that, huh?


Finding adequate long-tail keywords can be among the most challenging parts of SEO. That is where tools like AnswerThePublic come to the rescue.

AnswerThePublic gives you question-based titles and long-tail keywords for your blog. It allows you to create content on topics your audience is interested in. The website gives you a graphic with over 150 keyword ideas within seconds.

Though this tool is free for three searches every day, you will need to purchase a plan to use it more often; choose from monthly, annual, or expert plans.

Yoast SEO

Yoast SEO is one of the simplest SEO optimization tools free, especially for on-page SEO. It has a WordPress plugin and online content analysis feature for users’ convenience.

Add your content to the online content analyzer to get insights on the content’s SEO metrics. Yoast SEO also eliminates the use of a keyword density analyzer by providing details on keyword density. Besides keyword density, it also checks the content and highlights:

  • Content length
  • Readability
  • Meta description optimization
  • Transition word density
  • Passive voice sentences

Rank Math

While Yoast SEO is one of the most popular SEO plugins, many bloggers prefer Rank Math instead.

Besides on-page SEO, it provides data from Google Analytics 4 and Google Search Console in your WordPress dashboard. You also get Schema Markup and details on 404 errors. It is perfect if you like all-in-one tools that save time and offer efficiency.

The basic version is free, but you can get advanced features by upgrading to the paid version.

Semrush Site Audit

Besides content optimization, site audit is critical to improving your site’s SEO. Semrush Site Audit is among the most widely used SEO optimization tools online; it helps understand your website’s performance. The tool is free for a hundred pages per month and you can get the paid version to expand your limit.

The best part is that it also tells you how to fix the highlighted problems. Click “Learn More” next to the error to check the solution.

Ahrefs Webmaster Tools

Are you looking for a complete tool to analyze your website’s SEO? Ahrefs has got you covered!

Ahref’s Webmaster tools help you monitor your website’s ranking and SEO. It also gives you insights on other websites that are similar to yours. These tools help you run a complete analysis of your website to detect over 100 SEO problems. Plus, you get to know what causes the problem and how you can fix it. That’s a one-stop solution!


Ubersuggest is a super helpful tool for finding long-tail keywords. You can search for keywords on Ubersuggest by entering a target keyword or URL. New accounts get three free searches per day. However, you can upgrade your package by getting a paid subscription.

They also have a Chrome extension that gives insights into a website’s domain authority. Get further details into your website to improve its SEO.

Search Response

The next on our list of SEO optimization tools is another similar to AskThePublic. Search Response also gives you question-based queries you can use as blog titles. However, it brings you related questions from Google’s PAA (People Also Ask) section instead of analyzing various sources. You will also get group topics similar to the keyword you are searching for.


Talking of smart SEO optimization tools, CVWIQ also makes it to the list!

CVWIQ is a website speed analysis tool. But it does not only work when you run it. Instead, it continuously monitors your website’s performance and updates you through email. This free service notifies you of website speed through emails, so you can fix it.

You also get a weekly summary of the website speed to help you realize recurring issues.

Google Trends

You might be wondering, “Another tool by Google?” Isn’t it ideal when optimizing your content for Google itself?

Google Trends helps you build the base for content optimization by providing information regarding trending topics. This free tool by Google gives you popular topics, trends, and comparisons over time. Add your topic of interest and region to find related trending keywords.

Ahrefs’ Backlink Checker

Backlinks are critical to off-page SEO, and obtaining backlinks can be challenging; but not with Ahref’s backlink checker. It is one of the best SEO optimization tools for off-page SEO.

You can find backlink opportunities by pasting your competitor’s URL to obtain details like:

  • Number of backlinks
  • Most common anchor
  • Domain rating
  • URL rating
  • Five most linked pages

This tool is free for the first 100 backlinks you analyze.


SimilarWeb tells you how much traffic your website gets with traffic sources and locations to help you with competitor research. It also gives you engagements, traffic, top pages, etc. So you can use it to analyze your site deeply. Moreover, it provides data for shared keywords, web traffic data, and five results for each metric.

SimilarWeb is available for Chrome, Edge, Opera, and Firefox.


Seolyzer is a free SEO tool that helps you understand how search engines view your website. It offers log analysis and free site crawling. The tool also shares page speed performance and analyzes error codes.

Besides identifying poor response time, HTTP status codes, mobile and desktop responsiveness, it helps you discover your most crawled pages.

Google Mobile Speed Test

Today, most users browse on their mobile phones. Thus, Google has adopted mobile-first indexing. Google Mobile Speed Test is among the most helpful SEO optimization tools & techniques. It analyzes your website’s responsiveness to mobile audiences to improve reach and engagements.

Add your website’s URL to Google Mobile Speed Test to check the issues. It shows problems like small text, clickable elements, and wider content with accurate solutions.

Moz Local Listing Score

Online presence is inevitable to businesses today, even if you do not sell online. Thus, Moz Local Listing Score is an effective parameter for understanding your website’s appearance on the search engine. You get data from over ten sources, including Google and Facebook. The best part is that it also gives you solutions to the problems.

However, you can benefit from this SEO optimization tool only if you are based in the UK, US, or Canada.

Google SERP Snippet Optimizer Tool

Your meta title and description don’t only impact the search engine’s perception of your content but also the users’. People do not like messy or too-long titles and descriptions. So, if you are looking for SEO optimization tools to fix it, Google SERP Snippet Optimizer is the one for you.

Add your title, meta description, and URL into the given space. It will show how your content will appear in SERPs. Tweak and modify until it meets SEO criteria.


If you have not heard of Streak, you’re missing a gem!

Streak is a simple Chrome extension that acts like an in-built CRM in your email. So you can get data directly without using any additional tools. Additionally, it enables you to send personalized messages to specific groups. It has free and paid options to choose from; pick what suits your needs.


Link building is one of the most important aspects of off-page SEO. However, finding the right places to ask for backlinks can be challenging.

Hunter finds professional email addresses relevant to your business. Thus, you save time and effort in finding potential leads for back linking. The free version offers 25 monthly searches; upgrade to a paid version for more.

Short pixel

Website optimization is not only about optimizing content. It also includes ensuring that the images are search-engine-friendly. Shortpixel is a helpful tool that compresses and resizes your images so they load faster and conveniently.

You can experiment with different settings to see what looks the best for your website. Additionally, this tool optimizes your media library automatically.

Google Analytics 4

Google Analytics 4 (GA4), previously Google Analytics, is not exactly an SEO tool. Yet, it makes it to the list.

This free tool by Google is undoubtedly one of the best SEO optimization tools. It helps you understand your organic data stats and session duration to analyze SEO success. Plus, you can leverage heat map testing for visualizing click data. GA4 also gives you other information like:

  • Traffic sources
  • Bounce rate
  • Page speed
  • Audience demographics

Furthermore, combining GA4 with Google Search Console makes it even more powerful.

Google Search Console

The last on the list of our best SEO optimization tools online is Google Search Console. This Google tool tells you what the search engine thinks of your site. It gives you constant website analysis and error reports. You can conduct an SEO analysis to build an SEO strategy or revamp your existing content marketing plan.

Google Search Console gives you details on keywords, mobile responsiveness, indexing, metrics, and errors. It’s an all-rounder!

Combining GA4 and Google Search Console compiles your data in one place to help you identify improvement areas conveniently.

Final Words

SEO optimization tools are essential to increasing organic traffic to your website by ensuring search engine optimization. They help you analyze and fix issues in your website’s on-page and off-page SEO. Besides helpful tools by Google itself, others for keyword research and back linking are an amazing help.

So, are you ready to boost your website’s online presence with SEO optimization tools & techniques?

Connect to Kubico’s SEO experts for further queries!

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