
DKIMCheck
Instant Email Deliverability & DNS Health Scanner
What it does
DKIMCheck.online is a zero-latency email deliverability health monitor built on Cloudflare Workers and Cloudflare DoH. It audits your domain's SPF, DKIM, and DMARC authentication protocols in under 50ms, monitors degradation 24/7, and notifies you immediately if your domain deliverability breaks. Key Features: 🛡️ Continuous 24/7 background monitoring with email & webhook alerts. 🔑 Full Developer REST API & Webhooks. 🏅 Live embeddable deliverability badge widget for your website footer/README.
Does the same job
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Email Deliverability API & Checker26d ago · ▲2Instantly audit SPF, DKIM & DMARC to stop landing in spam.




MailMedic ‑ Email Health5d ago · apps.shopify.com · ▲1Scan your domain's SPF, DKIM and DMARC in seconds
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Launched alongside, August 2026
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Life & fun · 9d ago · louisabraham.github.io


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Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com