web analytics

Web Testing Tools

Google Tests

Free online tests by Google

Tool Description
Lighthouse It has audits for performance, accessibility, progressive web apps, SEO and more.

You can run Lighthouse in Chrome DevTools, from the command line, or as a Node module.

PageSpeedInsights PageSpeed Insights analyzes the content of a web page, then generates suggestions to make that page faster.
Check Your Connection Google partners with Measurement Lab (M-Lab) to run this speed test. Running this test could transfer over 40 MB of data, depending on your connection speed.
Google Fiber Another Google fiber speed test.

Website Load Speed Tests

Important that your website loads in a reasonable time or visitors will leave.

Test Site Description
WebPage Test WebPagetest is an open source project that is primarily being developed and supported by Google as part of our efforts to make the web faster.
PageSpeed Insight Googles, PageSpeed Insightgs analyzes the content of a web page, then generates suggersitons to make that page fastter. Reducing page load times can reduce bounce rates and increase conversion rates.
Web Page Analyzer Based on certain page characteristics, this site calculates the size of individual elements and sums up each type of web page components. It then offers advice on how to improve page load time.
GT Metrix Studies show that users leave a site if it hasn't loaded in 4 seconds; keep your users happy and engaged by providing a fast perforfming website!
GTMetrix uses Google Page Speed and Yahoo! YSlow to grade your site's performance and provides actionable recommendations to fix these issues.
Website Speed Test The website speedtester shows the duration of a given website. This value can be used for showing how long a website take to load and if it is better to optimize the website or change a (slow) ISP.
Pingdom Tools We built this Full Page Test tool to help you analyze the load speed of your websites and learn how to make them faster. It lets you identify what about a web page is fast, slow, too big, what best practices you’re not following, and so on.
Show Slow Show Slow is an open source tool that helps monitor various website performance metrics over time. It captures the results of YSlow, Page Speed, WebPageTest and dynaTrace AJAX Edition rankings and graphs them, to help you understand how various changes to your site affect its performance.
Dynatrace Is your mobile and website delivering exceptional user experiences? Do you have a need for speed?
Take a FREE performance test today to find out.
DotCom Monitor Detects performance problems, slow/missing elements, connectivity issues.
Test load times of all website elements using an IE browser.
Provides detailed easy-to-read charts.
Test website speed from 19 worldwide locations.
WebSitePulse Test verifies the URL availability, downloads the complete HTML content, the images and all the other internal web page objects and measures the download speed of each of the components. The test results display DNS time, first and last byte times for each of the web page objects.
OctaGate Site Timer OctaGate SiteTimer – aims at web site developers that need to get a birds eye view of their work.
It allows you to monitor how long it takes for a user to download one or more of your web site pages.

Test Your Hosting Server Speed

How fast or optimized is your web hosting server? See how your host server compares to the competition.

Test Site Description
Pickuphost Do you want to know how fast your your web hosting provider is? Or do you want to check the web hosting company you are interested in? It's time to try out the easy-to-use PickupHost Speed-test.
Bitcatcha Check web hosting performance using our proprietary Server Speed Checker. Perform a server speed test to see your server response time around the globe.
UltraTools The DNS Hosting Speed tool will test how long it takes authoritative DNS servers to respond to a request for your domain or host, including the Domain, the TLD, and the Root DNS server response times.
Vertain Free instant website/server speed test. Measure site or server speed and compare
to industry benchmarks. Track speed variations with our automated speed tests.
Evaluate your site's performance against your competition.

Test Your Responsive Design

How your site renders in mobile devices.

Matt Kersely This tool has been built to help with testing your responsive websites while you design and build them.

You can enter your website's URL into the address bar at the top of this page (not your browser's address bar) to test a specific page.

Am I Responsive Show off how responsive design looks across different browsers easily with this 4 in 1 viewport tool. See how your site looks on desktop, laptop, ipad & iphone.
Screenfly Tests your website in all major smartphones, tablets, ipads, desktops, and big screen tv's.
Screenqueri Screenqueri.es is a Pixel Perfect Tool to test your Responsive Design / Media Queries. Select from Pre-defined Screen Resolutions OR Drag Screen Handles To …

Responsinator The Responsinator helps website makers quickly get an indication of how their responsive site will look on the most popular devices. It does not precisely replicate how it will look, for accurate testing always test on the real devices.
Responsivepx Enter the url to your site – local or online: both work – and use the controls to adjust the width and height of your viewport to find exact breakpoint widths in pixels. Then use that information in your media queries to create a responsive design.
Responsive Design Checker Quickly see how your website looks on various devices and screen sizes.
Designmodo Free Responsive Web Design Testing Tool - ViewPorter. Test your responsive website design while you build them.

Screen Resolutions

Testing different screen sizes and resolutions.

Website for Test Short Description
TestSize Test any web page in any window size. Select a standard size or enter your own. No registration required.
Webestools This tool lets you test online a website in different screen resolution. That let you test the design compatibility with low and high resolution. That will help you detecting anomalies due to the screen size.
Infobyip This site not only tests Desktop and Laptop resolutions, it also tests Tablets and Phones too.
Screen-Resolution To get the most out of the screen resolution application please open this page in your Internet Explorer browser.
Chrome Resolutionh Test Plugin A resolution test plugin for Google Chrome Browser.
You test your site on your own computer. Chrome Browser required.
Screenfly Test your website on any screen size including desktops, tablets, televisions, and mobile phones.
Cybercrab Check your website at different screen resolutions. Make sure your website is responsive. Best responsive site tester. Easy screen resolution tester.

Web Browser Compatibility

How does your site render in different browsers?

Website Tester Short Description Cost
Browser Shots Browsershots makes screenshots of your web design in different operating systems and browsers. Most popular tester used by Web Developers. Free
Pay (priority processing)
CrossBrowserTesting Test your website live via your browser and remote VNC sessions. Now you can interactively test your ajax, javascript, and flash on all operating systems and browsers from anywhere! Pay
NetRenderer IE NetRenderer allows you to check how a website is rendered by Internet Explorer 10, 9, 8, 7, 6 or 5.5. Unlike other screenshot services, we are able to process a large number of capturing jobs in parallel and in realtime, making it the fastest service that we know of. Free
BrowserStack Live Web-Based Cross Browser Testing. Instant access to all browsers across platforms. Forget clumsy virtual machine & mobile setup. Save time & money. Pay
Debugbar IETester is a free (both for personal and professional usage) WebBrowser that allows you to have the rendering and javascript engines of IE10 preview, IE9, IE8, IE7 IE 6 and IE5.5 on Windows 7, Vista and XP, as well as the installed IE in the same process. Free
Browser Sandbox Cross-Browser Testing and IE / Windows Backwards Compatibility. Browsers run within an isolated virtual environment, eliminating the need for installs and allowing legacy browsers such as Internet Explorer 6 to run on Windows 7. Free
Browserling Live interactive cross-browser testing Free/Pay

Test for Mobile Devices

How does your site render in mobile devices?

Online Test Short Description
Connected Want to check out how your website on a mobile looks? There are a number of online resources that will do that for you.
MobilePhoneEmulator This tool enables you to test the display of your website in a cell phone terminal. Most of settings are honored : dimensions, resolutions, user agent, behavior, features…
mobiReady A free tool for developers, designers and marketers to test website performance on mobile devices.
W3C MobileOK Checker This checker performs various tests on a Web Page to determine its level of mobile-friendliness. The tests are defined in the mobileOK Basic Tests 1.0 specification.
Dynatrace Is your mobile and website delivering exceptional user experiences? Do you have a need for speed?
Take a FREE performance test today to find out.
Ipad Peek Is a online tool that lets you see how any website will be rendered on the iPad.

SSL Certificate Tests

Online Testers to test your SSL Certificate authenticity, installation, and vulnerabilities.
Updated: 6/9/20

Test Site Description
WhyNoPadlock Are you pulling your hair out trying to find out why your secure page is not fully secure? Here's a simple tool that will tell you about any insecure items on your SSL page!
Qualys.ssl labs This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet.
SSL Shopper This SSL Checker will help you diagnose problems with your SSL certificate installation. You can verify the SSL certificate on your web server to make sure it is correctly installed, valid, trusted and doesn't give any errors to any of your users.
Digicert If you are having a problem with your SSL certificate installation, please enter the name of your server. Our installation diagnostics tool will help you locate the problem and verify your SSL Certificate installation.
GeocertsSSL SSL made simple. Verify that your SSL certificate is installed correctly on your server.
Comodo SSL Analyzer Free SSL Certificate Checker, SSL Vulnerability Scanner and SSL Server Configuration Reporting Tool from COMODO.
SSL Checker We will show you errors, authority, subject, expiration date and more.
RapidSSLonline This tool can verify that the SSL Certificate on your web server is properly installed and trusted. SSL Checker will display the Common Name, server type, issuer, validity, certificate chaining, and more certificate details.

Code Validation


Website Test Short Description
W3C Markup Validation This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc. If you wish to validate specific content such as RSS/Atom feeds or CSS stylesheets, MobileOK content, or to find broken links, there are other validators and tools available.
WDG HTML Validator The WDG HTML Validator is similar in many ways to the W3C HTML Validation Service. Most of the previous differences between the two validators have disappeared with recent development of the W3C validator.
W3C CSS Validation Check Cascading Style Sheets (CSS) and (X)HTML documents with style sheets.
W3C Link Checker his Link Checker looks for issues in links, anchors and referenced objects in a Web page, CSS style sheet, or recursively on a whole Web site.
Website Validation Validate your HTML, CSS, and other Web file types with these HTML validators. There is an HTML validator, a CSS validator, an XHTML validator, an RSS and Atom validator, and a P3P Validator. These validators are easy to use, just put in the URL of HTML file and click on the Validate button.
Dr Watson Dr. Watson is a free service to analyze your web page on the Internet. You give it the URL of your page and Watson will get a copy of it directly from the web server. Watson can also check out many other aspects of your site, including link validity, download speed, search engine compatibility, and link popularity.
Dirty Markup Online cleanup your HTML, CSS, and JS.

Browser Tests

Test your browser security, css3 and js rendering, html5 compatibility

Website Short Description
Can I Use With all the web elements and components available for web designers and developers, have you ever wondered if a particular element is compatible in all browsers?
How about mobile browsers?

This website can help you decide if a certain element will suit your purposes.

HTML5 Test The HTML5 test score is an indication of how well your browser supports the upcoming HTML5 standard and related specifications.
Acid3 Test Acid3 is primarily testing specifications for “Web 2.0″ dynamic Web applications. Also there
are some visual rendering tests, including webfonts.
Qualys Qualys BrowserCheck is a cross-platform and cross-browser SaaS service that scans the user\'s browser looking for vulnerabilities in the browser itself and its plug-ins. This tool will also help you fix the security issues discovered by the scan.
Panopticlick s your browser configuration rare or unique? If so, web sites may be able to track you, even if you limit or disable cookies.
Panopticlick tests your browser to see how unique it is based on the information it will share with sites it visits.
GRC Shields UP This app actually tests the vulnerbility of your firewall.
GRC Internet Security Detection System scans on request the user\'s computer, especially the Windows file sharing and reports vulnerabilities.
Browser Privacy Test & Analyzer What information can a website find out about you when you visit it? A lot more than you probably realize. This tool lists information that any website, advertisement, and widget can collect from your web browser. Such information could be used to identify you and/or track your behavior using tactics like IP lookups and browser fingerprinting. While none of this may be considered personally identifiable information (PII), the profile drawn from all these pieces of information can be so distinct that it can only plausibly match a single person.

Web Accessibility Tests

How well your site meets accessibility standards.

Website Test Short Description
Wave WAVE is a free web accessibility evaluation tool provided by WebAIM. It is used to aid humans in the web accessibility evaluation process. Rather than providing a complex technical report, WAVE shows the original web page with embedded icons and indicators that reveal the accessibility of that page.
Cynthia Says The HiSoftware CynthiaSays portal is a joint Education and Outreach project of HiSoftware, ICDRI, and the Internet Society Disability and Special Needs Chapter.
AChecker This tool checks single HTML pages for conformance with accessibility standards to ensure the content can be accessed by everyone.
FireFox Accessibilty Plugin The Firefox Accessibility Extension makes it easier for people with disabilities to view and navigate web content. Developers can use the extension to check their use of structural and styling markup that support functional web accessibility.

SEO Analysis

Analyze your SEO

Website Test Short Description Cost
Log File Analysis for SEO – Working with data visually Explains how to extract and prepare your log files for SEO analysis. Canonicalized will analyze your log files for you. Free
SEO-Browser See your website like a search engine sees it. Free
SEO Workers This SEO Analysis Tool is to help you analyze and measure the ranking potential of your web pages. It doesn\'t only analyze the Meta Tags of your pages, rather it tries to use the same spider technology as the search engine spiders themselves. Free
SEO Centro Free SEO Analyzer tool to give webmasters an in-depth analysis of their web pages on-site and off-site SEO ranking on a page-by-page basis. Free
Power Mapper SortSite is a very good testing tool. It will test all pages it finds on the site. Pay
SEO Site Checkup Check your website’s SEO problems for free. Type in your website, select factors and hit “Checkup!” Pay

Test Your Internet Speed

Are you getting what you paid for?
Updated: 9/17/20

Test Site Short Description
Internet Speed Guide Here is a guide to get you more acquainted with the things that affect your internet speed.
Speed of Me SpeedOf.Me is an HTML5 Internet speed test. No Flash or Java needed! It is the smartest and most accurate online bandwidth test. It works well on iPhone, iPad, Android, Windows 8 and other mobile devices, as well as desktop computers.
Speedtest Are you getting the speed you pay for? Our Promise Index™ and Speedtest.net help keep your ISP honest! You can help too and join over 250 million others like you who want to test or troubleshoot their Internet connection. What\'s your Speed?
Speakeasy.net Test your Internet connection bandwidth to locations around the world with this interactive broadband speed test.
TestInternetSpeed.org Does your broadband internet connection give you value for money? If you have an internet connection at your home or office, you should check the download and upload rates frequently. That will keep you informed about the state of your connection.
Bandwithplace The internet connection speed test measures that amount of time that it takes to download and upload a file. This is a non-obtrusive test and the test determines your internet connection speed based on the amount of time that it takes to upload and download the file.
Xfinity Use Speed Test from XFINITY® to measure your internet connection speed with servers around the country.
Megapath Test your broadband connection quality and speed. Try MegaPath Speed Test Plus and see if your connection can support VoIP and other net applications.

Find IP Address Location

Find out more about any IP address

Test Site Short Description
WizCase Easy to use and no ads.
What Is My IP? Quickly check your IP Address, Geo-Location, ISP, Browser, Operating system and more.
IP Location IP Location Lookup tool provides information about the location of any entered IP Address. Not only location, but it also points the pin on the map which is an estimated location of that IP.
IP Blacklist Checker Check any IP Address or a Domain name IP in anti-spam databases instantly to know either the IP is blacklisted or not and either it is a reasonable ip or a harmful IP.

IP to Decimal number IP to Decimal Converter converts an IP Address to a Decimal Number. It also converts IPv4 to IPv6. After conversion from IP to ipv6, you can see the ipv6 expanded version as well as ipv6 compressed version.
IP Address Lookup This site provides free access, to visitors across the globe, to the largest Internet Protocol database. Internet Protocol address, also known as IP, is a unique identification number for each device, connected to the internet. You will be able run a reverse search on someone`s IP address, identify your own IP and access different IP related tools.
Info Sniper infoSNIPER offers free as well as commercial web API geolocation services.
Melissa Data Free Lookup display locaton of an IP Address - Identify the location of an Internet Protocol (IP) addressCity, State, Region, ZIP Code, Lat/Long, Country.
Keycdn What is my IP address? IP location lookup tool for a defined IP address or hostname. Locate IP address with a simple click.
IP-Tracker IP-Tracker.org where you will everything you need to track and trace IP Address using the latest IP tracking technique.
VPN Mentor
Find your IP address and IP Lookup.

DNS Tests

Domain Name Servers, or DNS

Test Site Description
DNS Checker DNS Checker provides free DNS lookup service for checking domain name server records against a randomly selected list of DNS servers in different corners of the world.
DNS Lookup This test will list DNS records for a domain in priority order. The DNS lookup is done directly against the domain's authoritative name server, so changes to DNS Records should show up instantly.
DNS Speed Test The DNS hosting speed tool will give you valuable DNS performance information for each level in the DNS tree to assist with performance evaluations and performance troubleshooting.

Email Test

Various email testing resources

Test Site Description
Email Header Analyzer Analyze the email headers and trace the email sender IP location and IP Whois easily.
Mail Tester Here you can enter an e-mail address to verify if it exists of if there are problems with it.
A series of checks will be performed on the e-mail address but no actual e-mail is sent.
Email Server Test This email test checks the domain for a valid mail server and responsiveness. In addition it provides a list of valid mail server IP addresses to help determine if one or more is listed on a real-time spam block list (RBL).

Email Security

Check if your email address has been compromised.

Tool Description
have i been pwned? Check if you have an account that has been compromised in a data breach.
Have I Been Sold? Quickly check if your email has been sold.
inoitsu Use this free service to check if an email address is in any hacked data from known breaches.
DeHashed Query the DeHashed® dataset programmatically for use in your own applications with our feature rich, fast, and powerful API.