A List of Free SEO Tools to Boost your Site’s Performance

November 27, 2015 - 4  min reading time - by Emma Labrador
Home > SEO Thoughts > List of free SEO tools

This list of free SEO tools will hopefully help you in your daily SEO work. Because Google guidelines are perpetually moving, website optimization cannot be done without any support. These 13 tools and guide will help you gain time and optimize your website rankings.

#1 Google Page Speed Insights

The page speed refers to the time your web browser takes to load a page on a device. A slow loading page can affect how your website is ranking. A low page speed can also increase your bounce rate since your visitors will just go away if it takes too much time to display an information. Google PageSpeed Insights offers insights about your page speed starting from a URL of choice. The PageSpeed score ranges from 0 to 100 points. A score over 85 shows the page is performing well.

We tried this app with Moz website. The app draws a clear visualization of the website performances.  As you can see below, the app splits the results between UX and page speed. For instance Moz mobile website gets 66 points for its UX and 70 points for its page speed which means there is some improvements to do. It is also possible to access further informations to see the details.


#2 Google Analytics

Google Analytics gives you feedback about your website performances. From a range of parameters, the app draws a clear insight about your traffic and where it comes from, your audience features, the type of device used and other useful informations. You will access all the informations you need to monitor your website performances and your ROI. In the report below, you can see from which sources your visitors come, your bounce rate, the number of sessions, etc.


#3 Google Trends

Which topics are hot on the web? What are people talking about and searching? Google Trends allows you to seek keywords by popularity, compare them and get insights. These insights will help you to know on which segment you should focus on and to decide which keyword are the most relevant for your activity or product.


#4 Keyword Tool

Keyword Tool provides a variety of long-tail keywords suggestions based on one keyword. The free version can be very useful for your content strategy and for organizing your keyword optimization. You can search your keywords by country and on different search engines.


#5 Siteliner

Duplicate content is an obsessive fear for any SEO manager. Siteliner finds out if there is any duplicate content on your website . Type in your URL and the app shows you clear results of what is duplicated inside of your blog and displays insights about your links. You can access details to see more precise information.

siteliner-duplicate-content .

#6 Copyscape

As Siteliner, this free SEO tool detects duplicate content but outside of your blog. It tells you if there is any plagariasm of your content on other websites.


Request your custom demo

Find out for yourself why Oncrawl is the most recognized technical and data SEO platform on the market! Book a demo tailored to your needs, and then try the platform out for yourself!

#7 Google Webmaster Tool

This app gives you feedback about your SEO by offering data, tools and diagnostics. It helps you respect the Google guidelines. But the fact is, it does not give you an exhaustive overview or comprehensive details. How to be sure your top product pages are easily crawlable and indexable for Google and respecting all the factors that are important for good rankings? See tool 13 to get the answer!

#8 Google Keyword Planner

This app can be a great partner for your Adwords strategy or simply just to know what keywords people are looking for. Google will sort out data about monthly search volumes, competition, suggested terms, etc.

#9 QuickSprout Website Analyser

This very comprehensible and intuitive free SEO tool offers an overlook about your global SEO: speed, tags, keywords, social signal, links and even a competitor comparison.

quicksprout seo tool

quicksprout seo tool

#10 Moz Toolbar

The Moz Toolbar is a browser extension that provides important SEO metrics on search engine performances of every page you visit like Domain Authority and Page Authority and much more.

moz toolbar

11# SEO keyword tool by SEOmonitor

SEOmonitor’s free keyword tool allows you to check your keywords’ current ranking on any Google TLD, their search volume, keyword opportunity and difficulty level. The opportunity level of each keyword is calculated against your entire list and for the specific website you are monitoring. Its value varies from 1 to 10, 1 indicating the keywords that are less likely to reach the top in SERP, while 10 represent the ones that require the least effort to maximize the revenue they bring. The difficulty level calculates how much effort you need to put in so you can outrank your competitors and reach the Top 3.

The tool comes in handy whether you want to analyze your website’s performance, a prospect, or any competitor.

12# Oncrawl Free SEO Toolbox

oncrawl toolbox

The SEO audit solution has also developed different free SEO tools that let you optimize your on-page and technical SEO.

It offers:

  • An entity detector
  • An Open Source Log Analyzer
  • A on-page SEO audit Chrome extension
  • A payload analyzer
  • A HTTP headers detector
Emma Labrador See all their articles
Emma was the Head of Communication & Marketing at Oncrawl for over seven years. She contributed articles about SEO and search engine updates.
Related subjects: