W3C Markup Validation Service
HTML Validator
Total Validator
PageSpeed Insights
Rocket Validator
GTmetrix
Nibbler
Scrutiny
Google Lighthouse
PageSpeed Insights
GTmetrix
WebPagetest
Website Speed Test by Pingdom
Yellow Lab Tools
DareBoost
WebsiteSpeedAnalysis.com
W3C Markup Validation ServiceW3C Markup Validation Service might be a bit more popular than Google Lighthouse. We know about 95 links to it since March 2021 and only 87 links to Google Lighthouse. 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.
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 month ago
===> Click here to run your code through the HTML validator. - Source: dev.to / 5 months ago
Try looking at tools like https://validator.w3.org/. Source: 5 months ago
I'm looking for either that specific validator (older version of https://validator.w3.org/) or an equivalent that can validate pre-HTML5 (DTD-based) files in a similar fashion. I would appreciate any pointers in the right direction. Thanks in advance. Source: 11 months ago
Not an addon, but maybe it helps Https://validator.w3.org/. Source: 11 months ago
Lighthouse (https://developers.google.com/web/tools/lighthouse). - Source: dev.to / about 2 months ago
I was once tasked with migrating a landing page with an associated blog from CSR to use SSG. Once I had done so, however, I noticed that my Lighthouse score had gone down despite my page rendering a much more useful initial page significantly faster than it'd taken for my app's spinner to go away. - Source: dev.to / 2 months ago
In this Flying V Group tutorial, we discuss how to run a Google Lighthouse Audit. Google Lighthouse audits your site’s performance on a 3G network and makes recommendations for improving your site speed and performance. https://www.flyingvgroup.com/how-to-run-a-google-lighthouse-audit-for-mobile-site-performance-cs/. Source: 5 months ago
I started with the Google Lighthouse tool. It's a great tool that helps you to find the most common problems with the performance. I read a lot of articles about performance optimization and tried to apply the best practices. I would suggest this article, combining most practices. I don't want to repeat the same things, you are already familiar with them, I guess. Most of them are well-known and described in... - Source: dev.to / 6 months ago
Lighthouse You can speed up your WordPress sites with these popular optimization plugins:. - Source: dev.to / over 1 year ago
HTML Validator - HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla.
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.
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.
WebPagetest - Run a free website speed test from multiple locations around the globe using real browsers...
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.