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Dev tools · alternatives · 2026

24 alternatives to Browser Resource Hint Validator

Check preconnect and preload hints are working correctly

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Browser Resource Hint Validator launched in 2022; newer entries below may have overtaken it.

  1. 1JL

    http://instantclick.io/ It seems the internet architecture won't bring us instant websites anytime soon. So here is a hack. I released this JS library last month (today is version 2.0 release, fixing v1.0's rough edges), it makes use of HTML5's pushState and preloading to make a website instant. It works like this: before clicking on a link, you'll hover over it. And there's a delay of 200-300 ms between these two events. InstantClick uses this delay to preload a page, when you click on a link it will display instantly in most case. (You can test on the website.) That's…

    2014 · its alternatives →

  2. 2MY
  3. 3

    Make your site’s pages instant in 1 minute ⚡

    2019 · its alternatives →

  4. 4

    Test your website load speed from 6 locations at once

    2017 · its alternatives →

  5. 5IM

    Yes, 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 :)

    2024 · v1.web-check.xyz · its alternatives →

  6. 6

    Convert more users by ensuring your site loads fast

    2020 · its alternatives →

  7. 7

    Make faster design decisions with greater confidence

    2014 · its alternatives →

  8. 8

    Test page speed and get recommendations to improve load time

    2023 · its alternatives →

  9. 9

    Navigate the web faster by preloading pages on hovering

    2019 · its alternatives →

  10. 10
    CMNGSN▲144

    Build and launch your coming soon page in a few minutes

    2023 · its alternatives →

  11. 11
    Preely▲110

    Remote user testing and rapid prototyping

    2018 · its alternatives →

  12. 12

    Site optimization service to make your website damn faster!

    2015 · its alternatives →

  13. 13SU
  14. 14

    Check the credibility of any website in one click

    2022 · its alternatives →

  15. 15ML

    Hey HN, I wanted a better load testing solution – so I built one with my team at Multiple. We just opened early access and would love to get your feedback. We created Multiple to solve three challenges with existing tools: 1. Limited scripting capabilities. XML or GUI-based scripting can only test basic scenarios. Existing code-based tools struggle with auth, generating synthetic data, and testing anything other than HTTP requests. We went with JavaScript for ease of use, versatility, and integration with existing developer workflows. 2. Cannot use existing libraries or code. Instead of…

    2023 · app.multiple.dev · its alternatives →

  16. 16

    Build websites fast with ready-to-use designs and UI/UX code

    2024 · its alternatives →

  17. 17

    Complete guide to improving your Next.js website performance

    2024 · its alternatives →

  18. 18

    Fast checks for common web issues

    Jan 2026 · sitewatch.io · its alternatives →

  19. 19

    Boost performance and improve UX of your Next.js apps!

    2025 · its alternatives →

  20. 20

    Essential tools, resources, and tips for web developers.

    2024 · its alternatives →

  21. 21

    We've been trying to evaluate web scraping companies, but when you look at their benchmarks, you can't verify anything, and they mostly exist to prove the company is successful. They put somewhere between 98% and 100% because they pick their own urls, define success their own way, and don't publish the harness. We also saw companies like scrapfly astroturf websites like scrapeway and call them independent. So, we built an open source benchmark that we want to represent the frontier of web data. We're trying to look across all major anti-bot providers and industries, to build a comprehensive…

    Jul 2026 · github.com · its alternatives →

  22. 22

    A fast and simple alternative to Postman - HTTP requests

    2024 · its alternatives →

  23. 23

    Check Website Speed & Performance Instantly

    Dec 2025 · geteasetools.com · its alternatives →

  24. 24

    Site down or just you? Check instantly!

    2025 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →