Webmaster Tools

The Best Online Webmaster Tools 2021

The great thing about web-based online tools is that there’s no need to download or install anything to use them, all you need is a web browser and Internet connection. In this post, I have compiled a list of free online tools that you may find useful for your web projects.

Web Performance Tools

Byte Check 
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Check Your Time To First Byte

Screenshot of www.bytecheck.com

Check the load speeds of and information of a given website.

PageSpeed Insights

Make Your Web Pages Fast On All Devices

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PageSpeed Insights analyzes the content of a web page, then generates suggestions to make that page faster.

GTmetrix

How Fast Does Your Website Load? Find Out With GTmetrix

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GTmetrix is a free tool that analyzes your page’s speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them. See how your site performs, reveal why it’s slow and discover optimization opportunities.

Pingdom

Website Speed Analysis

Screenshot of tools.pingdom.com

This Website Speed Test to help you analyze your website load speed. Enter a URL to test the page load time, analyze it, and find bottlenecks. The test is designed to help make your site faster by identifying what about a webpage is fast, slow, too big, and so on.

DNS Speed Test

DNS Speed Test From Multiple Network Locations

Screenshot of www.solvedns.com

This test helps you identify and correct DNS errors by sending queries to your name servers from multiple locations.

Research Tools

Similar Web

Compare Any Website Traffic Statistics & Analytics

Screenshot of www.similarweb.com

SimilarWeb.com is a website analysis tool that gives you analytics information for any website. Grow your market share and website traffic with SimilarWeb’s digital market intelligence platform.

Who Is Hosting This

Discover Who is Hosting Any Website

Screenshot of www.whoishostingthis.com

Get information about the web host, IP address, name servers & more.

Wappalyzer

Technology Lookup - Find Out What Websites Are Built With

Screenshot of www.wappalyzer.com

Reveal the technology stack of any website, instantly and for free.

Wappalyzer is a technographics data provider, uncovering technologies such as content management systems, customer relationship management, ecommerce platforms, advertising networks, marketing tools and analytics.

WordPress Theme Search

What WordPress Theme Is That?

Screenshot of whatwpthemeisthat.com
What WordPress Theme Is That is a free online tool allows you to easily detect what WordPress theme a site uses (including parent and child themes). Additionally, it will also detect what WordPress Plugins are being used.

BuiltWith

Technology Lookup

Screenshot of builtwith.com

Built With online Internet research tool is quite impressive to let you know technologies are used to make a website and it also provides you related technology trend statistics in a beautiful chart.

Along with technologies, it also let you know if any advertising is used. Interesting to see how it track the website at the broader level to reveal each component. Go ahead and try yourself to believe.

NetCraft

What's that site running?

Screenshot of sitereport.netcraft.com

Find out the infrastructure and technologies used by any site using results from our internet data mining.

SimilarTech

Website Profiler, Lead Generation, Market Research and Competitive Intelligence Tool

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SimilarTech gives technologies score and lists out like an advertisement, analytics, widget, social sharing, mobile, CDN, CMS, media, open graph, schema and meta tags details.

WhatCMS

What CMS Is This Site Using?

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WhatCMS doesn’t give you all technologies but just which CMS is being used like WordPress, Joomla, Drupal, Blogger and many more.

Analyzes website content to determine which Content Management System is being used. We can detect over 500 different CMS.

Testing & Checking Tools

HTTP Status Code Checker

HTTP Status Code And Redirect Checker

Screenshot of httpstatus.io

Easily check status codes, response headers, and redirect chains.

Browser Stack

App & Browser Testing Made Easy

Screenshot of www.browserstack.com

Test Your Websites. Test Your Mobile Apps. Give your users a seamless experience by testing on 2000+ real devices and browsers. Don’t compromise with emulators and simulators.

Broken Link Checker

Free Online Broken Link Checker

Screenshot of www.brokenlinkcheck.com

Online Dead Link Checking Tool – find bad hyperlinks. Check for broken links on your website with this free online tool. 

Security Headers

Analyse Your HTTP Response Headers

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Quickly and easily assess the security of your HTTP response headers

Mobile-Friendly Test by Google

Check If Your Site Is Mobile Friendly?

Screenshot of search.google.com

Test how easily a visitor can use your page on a mobile device. Just enter a page URL to see how your page scores.

Responsive Design Checker 
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Responsive Website Design Tester

Screenshot of www.responsivedesignchecker.com

Make sure your website looks perfect on any screen size. Instantly preview your site on desktop, mobile devices, tablet, and custom resolutions.

Free SEO Tools

Alexa Siteinfo

Drive More Website Traffic with Competitive Analysis

Screenshot of www.alexa.com

Get a free, automated website analysis to quickly gain insights into a site’s strengths, weaknesses, and digital marketing opportunities.

SEOquake

A Powerful SEO Toolbox For Your Browser

Screenshot of www.seoquake.com

SEOquake is one of the most popular toolbar extension. It allows you to view multiple search engine parameters on the fly and save and compare them with the results obtained for other projects. Although the icons and numbers that SEOquake yields might be unintelligible to the uninformed user, skilled optimisers will appreciate the wealth of detail this add-on provides.

Google AdWords Keyword Planner

Find Profitable Keywords‎

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Knowing the right keywords to target is all-important when priming your web copy. Google’s free keyword tool, part of Adwords, couldn’t be easier to use. Plug your website URL into the box, start reviewing the suggested keywords and off you go.

Google Keyword Planner is an INSANELY powerful tool, and has some clear benefits. Not least, the fact that it suggests keyword ideas that you can’t find anywhere else.

Google Optimise

Website, A/B Testing & Optimization Tools

Screenshot of optimize.google.com

Google Optimize is an online split-testing tool from Google that plugs into your website and enables you to experiment with different ways of delivering your content. It facilitates three types of testing – A/B testing, multivariate testing, and redirect tests. Optimize is typically used for conversion rate optimization (CRO).

Using Google Optimize to achieve a higher conversion rate can increase the average value of visits to your web page.

Ahrefs Backlink Checker

Website, A/B Testing & Optimization Tools

Screenshot of ahrefs.com

An absolute favorite among online marketing professionals, Ahrefs gives you all of the tools that you need to track your backlinks and keywords. Furthermore, you can get an inside look at what your competition is doing.

There’s a lot to like about Ahrefs, but I personally enjoy the quality of the data this backlink checker provides.

With Ahrefs, you never have to worry about the accuracy of the information or whether or not you’ll be provided with the most current backlink data.