November 30, 2025
NSFW meets DNS WTF
"Boobs check" verify if sites behind CDN are hosted in Inside Iran or not
A cheeky 'boobs.jpg' trick sparks a fight over X clicks and privacy
TLDR: A playful “boobs.jpg” test claims to reveal if a site is routed inside Iran by spotting a forbidden response and a telltale IP. The comments explode into a debate over viewing it on X vs. privacy-friendly mirrors, with users grumbling about account walls and who deserves the clicks.
A researcher dropped a truly internet-brained tip: the “BOOBS CHECK”. In plain English, you ping a site with a file named “boobs.jpg,” and if you get a “403 Forbidden” plus a mysterious 10.10.34.x number, that’s a clue the site’s traffic is landing inside Iran—likely snagged by local filtering. It’s a snappy, slightly naughty shortcut to spot where a site really lives behind a content-delivery network (a web speed booster), and yes, the name is half the joke.
But the comments? Pure chaos. ThePowerOfFuet posted a mirror to the tweet via xcancel.com, and the room split. One camp said “it’s easier to view the tweet”, just click the thing and move on. Another camp fired back: don’t give clicks to X (Twitter), ever—privacy first! Enter hypeatei with receipts: XCancel is a Nitter front-end, meant for privacy and speed, not an anti-X crusade. Then qbit42 dropped the mood-killer: “I don’t want to have to create an account to view the full context.” Cue eye-rolls and memes: folks calling it the “NSFW ping test,” others joking it’s the most sysadmin energy move of the year. The biggest drama wasn’t the trick—it was the tug-of-war over where to link, who gets the clicks, and whether privacy beats convenience. Classic internet: come for the boobs, stay for the bickering.
Key Points
- •A heuristic named “BOOBS CHECK” is proposed to infer if a CDN-backed site is hosted inside Iran.
- •The method runs: curl -i https://domain/boobs.jpg to capture response details.
- •An HTTP 403 response containing a 10.10.34.x IP in the body is treated as an indicator of landing inside Iran.
- •The behavior is attributed to basic censorship filtering applied to traffic.
- •The author notes the method works most of the time, implying it is a practical but not definitive test.