W3C Markup Validation Service
Rocket Validator
PageSpeed Insights
Total Validator
Nibbler
HTML Validator
GTmetrix
mailmouse
WebPagetest
GTmetrix
PageSpeed Insights
Google Lighthouse
DareBoost
Website Speed Test by Pingdom
Pingdom
NewRelic
W3C Markup Validation ServiceBased on our record, W3C Markup Validation Service should be more popular than WebPagetest. It has been mentiond 98 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
How to use HTML Validation service 👇 Step 1: Access the HTML validator ● Open the HTML validator in your web browser i.e go to https://validator.w3.org/. - Source: dev.to / 4 months ago
Looking at the html of HN's pages, can't blame them really. Running though https://validator.w3.org/ , the result is abysmal. At this rate, if web browsers started requiring sites to output HTML that is somewhere in the realm of normalcy, HN would sooner shut down than consider ever updating. - Source: Hacker News / 11 months ago
Whether you’re a frontend developer, lead, or manager, reconsider your expectations and practices if you haven’t yet chosen not to ship erroneous HTML. The more of us decide to talk about using actual HTML on our sites and in our apps, and lead by example, the better for our users and clients, and the better for our craft and profession. On the engineering side of web development, it’s HTML first—if it is HTML. - Source: dev.to / 12 months ago
Validate Your Code Include tools like W3C code validation service and CSS validator to ensure your code meets web standards. - Source: dev.to / about 1 year ago
===> Click here to run your code through the HTML validator. - Source: dev.to / over 1 year ago
Trust neither. The most optimal option I've found is webpagetest.org Its been quite handy lately. This tool does look interesting. Source: about 2 years ago
Webpagetest.org is another. Pagespeedinsights and lighthouse are great for identifying page load issues to fix, but actual page load times will always vary between the user and your web server. Universal analytics has some page load timings but that's going away soon and nothing afaik is in GA4. I've seen an example of building a page load timer in tag manager and dumping the results into an event. Source: about 2 years ago
So I am working on rebuilding our company's site with a new stack. I am running tests using webpagetest.org, and I am having trouble fully understanding the speed index results as well as the film strip view. The page renders quite fast everywhere I test it. Google Lighthouse shows it in the 90s + for performance score, however when I test the page on webpagetest, I get load times of 77 seconds (NOT MS) which is... Source: about 2 years ago
Webpagetest.org is great, and checking OP's site they have done an incredible job, I don't think I have ever made or seen an Ecom site this slick. Super clean waterfall view. Source: about 2 years ago
Thanks for the recommendation regarding webpagetest.org, another user made a similar recommendation so I will check it out. Source: about 2 years ago
Rocket Validator - Site-wide Accessibility and HTML validation made easy. With a single click, Rocket Validator will check thousands of web pages on your site for Accessibility and HTML conformance, producing a detailed, actionable report on seconds.
GTmetrix - 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.
PageSpeed Insights - PageSpeed is addon for ...
Total Validator - Total Validator can check your website to help ensure that it is accessible, uses valid HTML and CSS, has no broken links, and is free from spelling mistakes.
Google Lighthouse - Lighthouse is an open-source, automated tool for improving the quality of web pages.
Nibbler - Free tool for testing how good your website is, and what you can do to improve it. Check accessibility, SEO, social media, compliance and more.