Best Free Web Services to Check Page Load Time, Website Loading Speed and Performance

Updated on December 28th, 2023 by Quertime Team in Web Tools

Being a serious web developer or blogger, it is essential to diagnose and analyze the performance of your site. If your site loading speed is slow, you would have to find out the slow-loading items and get them fixed immediately. Otherwise it will negatively affect your visitors and search engines like Google. Here is a list of some of the best web services, applications and tools for you to check and understand your site better.

Tip: If you are using W3 Total Cache for your WordPress blog, use one of the web services below to test the plugin’s performance.

Free Web Performance Services

Pingdom Tools
Pingdom Tools allows web developer or blogger to test the load time of a web page for free. What you need to do is enter a URL to test the load time of all elements on that page, so that you can find out the slow-loading items and improve them.

GTmetrix
GTmetrix is a free tool that analyzes your page’s speed performance. Using Google Page Speed and Yahoo! YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.

Load Impact
Load Impact is an online load testing service that lets you load test your website. You can either run free test with limited features or purchase premium account for more features.

Site-Perf.com
Site-Perf.com is a website performance analyzing tool. This online tool emulates natural browser behavior downloading your page with all the images, CSS, JS and other files.

WebToolHub
WebToolHub is another website speed tester to check how fast a webpage loads. It also provides information of external CSS, JavaScript and images found in the webpage.

Searchmetrics Rapid
Searchmetrics Rapid’s speed tester shows the duration of a given website. This value can be used for showing how long a website takes to load and if it is better to optimize the website or change a (slow) ISP.

Gomez Networks
Gomez Networks’s website performance tester lets you conduct a real-time instant test for an individual web page to test its performance from an external node location.

BrowserMob
BrowserMob offers free instant website performance test. It allows you to test your site from around the globe.

Webslug
Webslug lets you to compare your website’s performance against your competitors.

OctaGate Site Timer
OctaGate’s site timer allows you to monitor how long it takes for a user to download one or more of your web site pages.

Free Web Performance Applications and Tools

Google Page Speed
Google Page Speed evaluates the performance of web pages and provides suggestions on how to improve them.

Yahoo! YSlow
YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.

Pylot
Pylot is a free open source tool for testing performance and scalability of web services. It runs HTTP load tests, which are useful for capacity planning, benchmarking, analysis, and system tuning.

PageTest
Pagetest is an open source tool for measuring and analyzing web page performance right from your web browser.

Multi-Mechanize
Multi-Mechanize is an open source framework for web performance and load testing. It allows you to run simultaneous python scripts to generate load (synthetic transactions) against a web site or web service.