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Bad SSL

Screenshot of badssl.com captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 7 calendar years, with breakout response in 2 of them.

submissions
11
submitters
11
observed span
2015–2024
peak thread · 81 comments
404 pts
latest 20+ return · 2024-03-02
40 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

An incredibly useful resource, well maintained by some of the best people in the PKI space, recently quoted by US-CERT [1] and so quick to use that I try it before starting to use any browser. A year ago it made me find out that the most popular iOS Tor browser doesn't check certificates at all. [2] (Use OnionBrowser instead.) [1] https://www.us-cert.gov/ncas/alerts/TA17-075A [2] https://twitter.com/FiloSottile/status/765230315132559360 For an easter egg, try to click on "Defunct"...

Ha. Their EV test (which they say you should be able to connect to, if your browser is "good") uses a certificate that expired Aug 10 2022: https://extended-validation.badssl.com

One thing they don't cover is name constraints; There's a bunch of ways that they can fail, and some surprising ways they don't - The default is permit all, so if you have a Web CA with name constraints, you should remember to add poison-pill constraints for e-mail addresses as well. It's of course not super easy for badssl to show such - They'd need an intermediate cert of their own, or close cooperation with a CA, but IRSG should…

Src code: https://github.com/lgarron/badssl.com Credit to moviuro for sharing @ https://news.ycombinator.com/item?id=10186516

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
613

reference only — not used in Hall rules or ranking

Total comments
127

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2015-07-28Bad SSLsajal8330
2015-07-30Testing clients against bad SSL configsjsanc20
2015-09-09Bad SSLjaytaylor31
2015-12-01BadSSL: site for testing broken SSLjgrahamc30
2016-06-08Does your code verify SSL certificates?obi1kenobi20
2017-02-06Badssl.comhiq20
2017-03-18Bad SSLFirst breakout · Best threadaburan2840481
2019-12-09BadSSL – a tool for testing various errors with SSL/TLS serverdjanowski30
2020-08-16Badssl.comwoldemariam10
2022-09-29Badssl.com (2017)Hall inductionaaronbrethorst15034
2024-03-02Badssl.com (2017)Latest 20+ point returng4zj4011