Checkbot for Chrome – web crawler that tests for web best practices
Checkbot finds SEO, speed & security problems before your website visitors do. Tests for broken links, duplicate content, invalid HTML/CSS/JavaScript, insecure pages & more. Test 100s of pages at once including local sites to keep on top of problems & stop critical issues going live.
Checkbot for Chrome – web crawler that tests for web best practices launched on February 20, 2018 with 83 votes, #521 of 2,634 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 8 years on.
In plain words
Checkbot is a Chrome extension that crawls websites to identify SEO, speed, and security issues before they affect visitors. It tests hundreds of pages at once for problems like broken links, duplicate content, invalid code, and insecure pages, checking against 50+ web best practices from Google, Mozilla, and W3C. The tool is designed for website owners and developers who want to catch issues early and understand what fixes are needed and why.
written from the facts on this page · September 2026
From the sources
Checkbot can crawl 100s of pages in minutes for broken links, duplicate content, invalid HTML, insecure forms and more. Check your site is following 50+ best practices recommended by Google, Mozilla, W3C and other web experts. New to optimising websites? Checkbot will teach you what fixes to make and why they're important. Browse Checkbot's Web Best Practices Guide for an overview of the 50+ rules Checkbot automatically tests for. Checkbot will become an essential part of your workflow for identifying problems early and guiding optimisations. Check all your sites whenever you want for instant feedback after you make changes to keep your sites healthy. Stop wasting time on tedious manual…from checkbot.io
Does a similar job
all alternatives →
Checkbot for Chrome Beta2018 · checkbot.io · ▲229Check the SEO, speed & security of 100s of pages in a click!
I made tool that let's you see everything about any website2024 · v1.web-check.xyz · ▲411Yes, it's open source: https://github.com/lissy93/web-check :) Why I'm building this? There are a lot of tools out there for discovering meta and security data relating to a website, IP or server. But currently, there isn't anything that does everything, all in one place and without a paywall/ user sign up. It's still a WIP, and I'm working on a new version, with some more comprehensive checks, so any feedback would be much appreciated :)
Serpstat Website SEO Checker2019 · serpstat.com · ▲191Check your website's SEO, analyze competitors and keywords
Best Practices Guide Containing 50+ SEO, Speed and Security Rules2018 · checkbot.io · ▲8The Checkbot Web Developer Guide is a comprehensive resource that details 50+ web best practices that boost the SEO, speed and security of your site. Learn why duplicate content issues impact your search rank, how to optimise pages for fast rendering, which server headers to configure to harden
Pinbot – An extension to privately search one's browser history with AI2023 · getpinbot.com · ▲98Hello HN, I’m Kamil. The past months have been filled with news about ChatGPT, Bard, etc. Thankfully, there are some heroic attempts to bring that power to the users. I wanted to contribute to that effort with my side project, an extension for Chrome: it makes searching the history by meaning – instead of the exact words – possible. This is only a proof of concept, building on the excellent transformers.js[0], and running entirely in the browser. My goal here is to explore the possibilities unlocked by a client-side AI. I would love to have your feedback, to know which direction that project…
More growth this month
the category →
wallhop is a free paywall bypass. Paste any article link to read it without paywall popups, ads or clutter. No signup, no extension. A simple 12ft.io alternative.
Growth · 12d ago · wallhop.io
Source: Show HN post ↗
Launched alongside, February 2018
the whole month →
Six Degrees of Wikipedia▲1,176Find the shortest hyperlinked paths between any two pages on Wikipedia.
Life & fun · 2018 · sixdegreesofwikipedia.com
Witeboard▲1,017A real-time whiteboard for your team. No signups required.
Dev tools · 2018 · witeboard.com
Discover your next favorite thing, now on iOS and Android 📱
Life & fun · 2018
