Checks hosting, analytics, fonts, cdn, video, chat, social embeds. Gives you a score from 0-100 and suggests Eu-alternatives.

EDIT 2 (48h later — shipped based on your feedback after a rough and a good night of sleep):

Should be fixed: - Hybrid Geoip + ASN detection (no more nsa.gov/google.com false positives) - AWS, Azure, Google Cloud, Cloudflare, DigitalOcean, Vercel, Netlify detection - Links vs embeds — href to Twitter ≠ dependency on Twitter - Lazy-loaded YouTube/Vimeo (lite-youtube facades) - Adequacy tier scoring — UK, Switzerland, Japan get -15 (trusted, not sovereign) instead of 0 - Unquoted iframe detection (LinkedIn embeds)

gov.cn no longer scores 100%. admin.ch no longer scores 100%. The "sovereignty" label now hopefully means something.

Still open: - DNS/registrar checks (v2) - One reported LetsEncrypt cert error (can't reproduce)

Details on Vercel: I try to detect via response headers (x-vercel-id), so custom domains are hopefully flagged correctly. Cloudflare for DNS is intentionally not pennalized — it's a proxy layer, not hosting (that was also stated in the methodology-popup from the beginning). I try that the origin server determines your hosting score.

Thanks to everyone who took the time. We (meaning all of you, who tested, tried and commented and maybe I, myself) made this tool hopefully significantly better.

And to have it stated here too: Though it might sound ironic or something (especially via a board like this): I and my partner never meant to insult anybody. We have profound respect for quality engineering outside of our borders. It even inspires us.

Ave Caesari, morituri te salutant.

Fixed: 1. GeoIP fallback 2. Links vs embeds 3. Migration costs

*GeoIP* - The ASN-only approach was too restrictive (I tested mostly with orf.at and such). Now using oschwald/geoip2-golang with DB-IP Lite. Hybrid detection: ASN for known providers, GeoIP fallback for everything else.

kapsi.fi now correctly shows as EU/Finland (was the false positive many caught). google.com: 54% (US detected), reddit.com: 94% (Canada - has EU adequacy decision). Added all EU adequacy countries (UK, Switzerland, Japan, Canada, etc.) - no penalty, but labeled "Adequate" not "EU". Im not sure on this one. Im sure we'd like to get UK back in the Union so we get to see the Rolling Stones more often.

*Embeds* - A link TO twitter.com is no longer flagged as a dependency. Only actual embeds (script src, iframes) count now. This might also fix the "links to GitHub flagged as GitHub Pages hosting" issue - same root.

*Costs* - Reduced. Google Fonts swap is now €50-150, not €400-800. Costs were too enterprisy, now for small sites like ours :)

Need to feed some cows now. Will iterate further when back. PS: Please dont roast the latin. Its been a while.

EDIT: Remove Api for now.

EDIT (after 150+ comments of roasting):

First: You are legends. Thanks for the massive roasting. Had a Haupt-Mieterversammlung directly after clicking "Submit" and was too tired (and scared) to directly address the issues afterwards. Reading your comments really delivers some intense cringe-moments over here seeing my bugs exposed. I try to frame it as some of the best feedback from some of the best engineers in the world. This helps (it does).

The core stuff: I chose to implement ASN-list lookups instead of a GeoIP service (to have less deps). Worked for my european test cases. Clearly not battle-tested enough for the wild.

What I'm hearing: - Hosting detection has false positives (detecting links as hosting) and false negatives (US-hosted sites scoring 100%) - Social media LINKS shouldn't count same as EMBEDS (fair point) - Missing: registrar, TLD jurisdiction, DNS location - AWS/Cloudflare detection is spotty - Migration cost estimates are too high for small sites - Some UI bugs on Firefox

What we shipped overnight (yes, while this was trending): - "Hotfix" for our scanning friends over nsa.gov What we ship from now on: - Fix the real bugs

v0.2 roadmap based on your feedback:

1. Hybrid GeoIP + ASN detection 2. Differentiate links vs embeds 3. Add registrar/TLD/DNS checks 4. Fix AWS/CloudFront/Cloudflare detection 5. Smarter migration cost estimates 6. UI fixes

Building in public. This is day 1.

To everyone who tested edge cases: you part of this tool soon :) To whover tested nsa.gov at 2am CET: I noticed.

I am not sure how much i will get done by today – maybe i will need to touch grass later a bit (or feeding the cows as we do it over here in austria)