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Growth · alternatives · 2026

24 alternatives to Carbon - SEO URL Mapping

Finds the corresponding 200 response codes for your 404 URLs

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Carbon - SEO URL Mapping launched in 2019; newer entries below may have overtaken it.

  1. 1

    The best 404 pages from around the web.

    2020 · 404pages.xyz · its alternatives →

  2. 2

    Check the SEO, speed & security of 100s of pages in a click!

    2018 · checkbot.io · its alternatives →

  3. 3

    SEO Hub for GSC + GA4 + a 200-point crawl

    Jul 2026 · crawlraven.com · its alternatives →

  4. 4

    Answer user questions and redirect them to the right place

    2023 · formless.ai · its alternatives →

  5. 5

    Simplify URLs, optimize redirects, and fix 404 errors

    2025 · apps.shopify.com · its alternatives →

  6. 6

    Hi HN -- I built HTTP:COLON, a small, open-source web tool for quickly checking a site’s HTTP response headers and learning what they mean as you go. Link: https://httpcolon.dev/ What it does - Enter a URL and fetch its response headers - Groups common headers into handy buckets (cache, content, security) - Includes short docs/tooltips for headers and directives so you can look things up while debugging. I find hovering on highlighted headers quite useful! Supports different HTTP methods (GET/POST/PUT/DELETE) Deep links - You can link directly to a host,…

    Jan 2026 · httpcolon.dev · its alternatives →

  7. 7

    Test URLs in bulk for their HTTP responses, by ex-Google

    2022 · http.app · its alternatives →

  8. 8

    Easy to use no-code web scraping and data extraction tool

    2023 · browserhub.io · its alternatives →

  9. 9

    Stop losing customers to broken links with AI powered 404s

    2018 · cludo.com · its alternatives →

  10. 10

    Gardening for every HyperText Transfer Protocol status code

    2023 · http.garden · its alternatives →

  11. 11

    Generate a free visual sitemap from any URL. Crawl up to 25,000 pages* and quickly map your website’s structure with Rarchy.

    2021 · rarchy.com · its alternatives →

  12. 12

    I wrote this tool during an internship at Narf Industries in 2023. It's a REPL that allows for quickly developing, testing, and fuzzing for HTTP request smuggling attack payloads. I started the internship having never worked with web servers, and have now found over 100 HTTP implementation bugs. I attribute this mostly to the ease of experimentation in the Garden. REPL-oriented fuzzing is just a really good interface for finding parsing bugs. It's pretty neat to able to run a differential fuzzer, categorize and display all the discovered discrepancies, then let a human pick through them and…

    2024 · github.com · its alternatives →

  13. 13

    Technical SEO checks for the AI search era

    Jun 2026 · chromewebstore.google.com · its alternatives →

  14. 14

    Hand-curated collection of 140+ SEO tools for Startups

    2022 · startup-seo-tools.carrd.co · its alternatives →

  15. 15RG

    URL: http://reallygood404.com/ I wanted to put together a showcase of some great 404 pages since there seem to be a lot of hidden gems. Would love feedback and other 404 pages that I haven't seen/found yet if people are willing to share.

    2014 · its alternatives →

  16. 16

    Data on all redirects between domains on the Internet

    2025 · urlredirectchecker.com · its alternatives →

  17. 17

    Reveal short link destination safely | free tool

    Nov 2025 · urlunshortener.com · its alternatives →

  18. 18

    A 10-question quiz to learn HTTP status codes the fast way

    Jun 2026 · jsondevtools.org · its alternatives →

  19. 19

    The Best URL Redirect Analysis Tool

    2024 · redirectchecker.org · its alternatives →

  20. 20

    Track HTTP redirects and cookies from short URLs

    2017 · its alternatives →

  21. 21
    404lab▲2

    Where creativity meets curiosity. 🚀

    2025 · 404lab.wasmer.app · its alternatives →

  22. 22CY

    Hello HN! I’ve built a simple tool (https://www.seotrack.co/) that compares your organic traffic with SEO changes done around the same time. SEO changes includes on-page SEO changes, SEO & website errors, changes in internal links, changes in backlinks and google algorithm changes. It does three things well: 1. Automatically tracks all your SEO changes. 2. Compares it with organic traffic around the same time. 3. And notifies you if anything goes wrong with your SEO. Few things it doesn’t do are: 1. Tracking JS based websites. 2. Tracking only one sub domains under a domain.…

    2019 · its alternatives →

  23. 23

    Free Bulk Url Checker HTTP Status Code

    2019 · socialtech360.com · its alternatives →

  24. 24

    Because your website needs a reality check

    2025 · roastlab.lol · 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 →