W3C Markup Validation Service
HTML Validator
Total Validator
PageSpeed Insights
Rocket Validator
GTmetrix
Nibbler
Scrutiny
Website Speed Test by Pingdom
GTmetrix
WebPagetest
PageSpeed Insights
Google Lighthouse
Yellow Lab Tools
DareBoost
MaxCDN Tools
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Based on our record, W3C Markup Validation Service should be more popular than Website Speed Test by Pingdom. It has been mentiond 95 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.
Validate Your Code Include tools like W3C code validation service and CSS validator to ensure your code meets web standards. - Source: dev.to / about 2 months 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: 12 months ago
Yours: https://tools.pingdom.com/#629fdff48e000000 Its HN vs yours 25 KB vs 305 KB and 7 requests vs 44 requests. Besides that, looks very promising! - Source: Hacker News / 8 months ago
Don't over think just one tool. Check multiple places to see how your site is doing, like https://tools.pingdom.com/, etc. Source: 10 months ago
A slow website can negatively impact your website’s ranking and drive visitors away. Use tools like GTmetrix or Pingdom to analyze your website’s speed and make necessary improvements. You can optimize the code, allowing compression and checking the quality of images on your website. Source: 11 months ago
Pingdom is a renowned web optimization tool that offers real-time monitoring and performance testing capabilities for your website. With Pingdom, you can quickly identify and resolve performance issues that may hinder user experience. By simulating user visits from different locations around the world, Pingdom provides valuable insights into page load times, uptime, and performance metrics. It also sends alerts... - Source: dev.to / 11 months ago
Also checked my site here: https://tools.pingdom.com/ and it says it has a size of 10.1 MB. Source: about 1 year ago
HTML Validator - HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla.
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.
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.
WebPagetest - Run a free website speed test from multiple locations around the globe using real browsers...
PageSpeed Insights - PageSpeed is addon for ...
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.