DMARCKit

Free email auth scanner. Stop going to spam.

DMARCKit launched on April 16, 2026 with 1 votes, #8,101 of 21,248 launches that month.

What it does

Check your DMARC, SPF, and DKIM records in seconds. Free scanner + continuous monitoring for small businesses. Stop your emails from going to spam.

Email InspectNov 2025 · emailinspect.com · ▲9
Free dmarc, spf & dkim analyzer tools
DMARC Checker2024 · dmarcchecker.app · ▲70
Verify your DMARC, DKIM, and SPF settings with our free checker. Prevent bad actors from impersonating your domain and improve email deliverability.
DMARC Digests2020 · dmarcdigests.com · ▲101
Protect your brand from email scammers.
DMARC Checker2024 · dmarcchecker.app · ▲5
Ensure your emails pass DMARC/DKIM/SPF authentication
Monitor and Implement DMARC2015 · dmarc.postmarkapp.com · ▲86
A free tool to increase your email's deliverability
Email Deliverability API & CheckerAug 2026 · web-production-80c77.up.railway.app · ▲2
Instantly audit SPF, DKIM & DMARC to stop landing in spam.

/dev/null▲481
a social network for devs
Dev tools · 2d ago · dev-null.sh
Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423
open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 27d ago · github.com
Reladraw – A diagram language where you decide where to place things▲411
Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 25d ago · github.com
OpenBot▲362
Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 22d ago · openbot.run
Talanoa▲341
Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 20d ago · talanoa.email
CoreSpeed▲332
One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io

Brila▲1,364
One-page websites from real Google Maps reviews
AI · Apr 2026 · brila.ai
AG
A game where you build a GPU▲964
Thought the resources for GPU arch were lacking, so here we are
Life & fun · Apr 2026 · jaso1024.com
I built a tiny LLM to demystify how language models work▲915
Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.
AI · Apr 2026 · github.com
Fathom 3.0▲800
AI meeting notes: now bot-free, in ChatGPT & Claude + more
AI · Apr 2026 · fathom.ai
Brutalist Concrete Laptop Stand (2024)▲786
I made a laptop stand out of solid concrete, in the style of brutalist architecture, with themes of urbex and urban decay
Life & fun · Apr 2026 · sam-burns.com
I built a frontpage for personal blogs▲783
With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.
AI · Apr 2026 · text.blogosphere.app