Joined October 2012
- Tweets 2,374
- Following 481
- Followers 3,857
- Likes 952
312 Photos and videos
Oh Dear retweeted
Jun 12
There's a DNS edge case that even people who know DNS well tend not to have run into: a domain gets pulled from its registry, every uptime checker still says green, and the domain is already gone. The site looks fine. It isn't. 🌐
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Oh Dear retweeted
Jun 10
Putting your status page behind Cloudflare in Full (strict) mode? A self-signed origin cert gets rejected & your visitors hit Error 526. You can now upload your own TLS certificate instead. 🔒
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Oh Dear retweeted
Jun 10
This week at Oh Dear:
Pause notification destinations without deleting them, DNS verification for custom status page domains, AI checks on the latest OpenAI and Anthropic models, and larger crawls that no longer time out. 🔥
ohdear.app/changelog/2026-06…
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Jun 10
Putting your status page behind Cloudflare in Full (strict) mode? A self-signed origin cert gets rejected & your visitors hit Error 526. You can now upload your own TLS certificate instead. 🔒
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Jun 10
Before we serve any cert we check the private key matches it, that it covers your domain, & that it hasn't expired. Private keys are encrypted at rest & never downloadable.
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Jun 4
🥰
Jun 3
Never came across a monitoring tool as complete and easy to setup, it’s great and me and my team love it
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Jun 3
Coming soon to Oh Dear status pages: bring your own SSL certificate. If you run your status page on a custom domain & would rather provide your own cert than have us auto-provision one, that option is on the way. 🎉
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Jun 3
It honours the Cache-Control your backend sets, negative-caches unknown domains, coalesces concurrent lookups & can persist to disk for warm restarts. Open source, Apache-2.0, & listed on caddyserver.com/docs/modules… 🔥
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Jun 1
New week, new changelog 💪
Add your own logo & colours to monthly reports, we've redesigned the notifications interface, clarified our Application Health onboarding, and added clearer alerting to the DNS monitoring. 🔥
ohdear.app/changelog/2026-05…
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May 29
Testing how your app handles a 500 without taking down a real service?
Request Mirror returns any status code on demand: hit /status/500 and assert your error handling. Open source, free, and we use it in Oh Dear's own test suite.
request-mirror.ohdear.app
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May 27
We spent way too long building an "AI-powered framework" to help you decide if you need website monitoring. The result might shock you. 😱
(Or not 😂 )
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May 26
What shipped last week at Oh Dear:
AI checks now available to every team, create/update/delete monitors via MCP, a new $OH_DEAR_TIMESTAMP variable to bust CDN caching on uptime checks, and a redesigned Application Health onboarding. 🔥
ohdear.app/changelog/2026-05…
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May 23
Have you tried our new CLI tool yet? When paired with your favourite agent, it unlocks a world of powerful options 🔥
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May 21
Lighthouse scores drift quietly. A deploy adds 200KB, a third-party tag slips in, and weeks later your search rankings start sliding.
Oh Dear runs Lighthouse daily and alerts you the moment a score drops. 📉
ohdear.app/features/lighthou…
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