DMARC Checker App

Reviewed matches are labeled. Other suggestions come from a shared subcategory, use case, source listing or the same category. Compare features and current plans before choosing.

Product
DmarcDkim.com Protect your domain from email spoofing. Monitor DMARC, DKIM and SPF the hassle-free way.
MailFixIt Check email authentication DNS for free, understand the finding and get a safe, domain-specific action plan when you need one.
MailPosture Monitor your email security with SPF, DKIM & DMARC
DomSec HQ Instant domain security scanner: SPF, DKIM, DMARC & more
FortifyNET Free 60-second website security audit: SSL/TLS, DNS, security headers, email authentication (SPF, DKIM, DMARC), Core Web Vitals and dark-web exposure - with plain-English, step-by-step fixes.
Domain Scan Tools Monitor SPF, DKIM, DMARC, SSL & security headers from one dashboard
Email Posture Get alerted the moment your DMARC, SPF, or DKIM breaks
PhishFence Stop phishing before it starts

Selected by category and available use-case details. A topic match does not establish equivalent features.

Product
Pipelock Pipelock is an open source AI agent firewall and egress proxy. Inspect HTTP, MCP, and WebSocket traffic for leaks, injection, and tool poisoning.
Tessio Hosted age and identity verification for the EU Digital Identity Wallet. Over-18 checks that keep no personal data, built on an open source .NET core.
Ciphertrace Platform The Blockchain Security Company
Palo Alto Prisma Cloud Container security provides end to end protection for cloud containers. Explore Palo Alto Networks’ container security solutions.
Mimiri Notes Secure device-synchronized notepad with collaboration support
Polkadot Polkadot is a Web3 decentralized cross-blockchain protocol that seeks to connect different blockchains, enabling them to share security, interoperate and transact with each other.

Added to this directory in the past 30 days. Dates refer to the directory listing, not the product launch.

Product
GitHub A Python suite for authorized penetration assessment
Awahe Broker Check Spot a fake freight broker in 10 seconds. Free.
AI KYC AI-Powered KYC for Faster, Smarter, and Secure Verification
Fubble VPN Freemium VPN with a working free tier & BYO config

Profiles grouped by topic. This does not confirm an offer, availability or a connection to this profile.

Profile
Naya 💻 Newsletter: nayamoss.com/newsletter
Raymond Kirk American Cybersecurity Product Manager and AI Risk Consultant
The CyberHub Podcast The Hub of the Infosec Community.

Shows and channels grouped by topic. A recommendation does not mean this profile was featured or endorsed.

Show
System Malfunction Newsletter · Hessie Jones
Incrementally Better Newsletter · Stephan Geering
Dumping ground for my takes Newsletter · Gateklons

Retold founder accounts from startups in the same category, each linked to the original.

Story
Huntress: Three Former NSA Operators, a "Cute Idea," and Enterprise-Grade Security Sold Through the Back Door of Small Business IT Huntress was founded in 2015 by Kyle Hanslovan, Chris Bisnett and John Ferrell, former cyber operators at the National Security Agency. A prototype that hunted for the footholds attackers use to stay hidden flagged every
A Abnormal Security: The Ad-Tech Founders Who Didn't Know What a "SOC" Was and Built an Email Security Giant Anyway Abnormal Security was founded in 2018 by Evan Reiser and Sanjay Jeyakumar, veterans of TellApart, an ad-targeting startup Twitter bought in 2015. Leaving Twitter, they first imagined a broad AI platform, then asked secur
Infisical: Three Cornell Friends, a Visa Deadline and the Advice That Made Them Open Source Infisical was founded in 2022 by Cornell classmates Vlad Matsiiako, Tony Dang and Maidul Islam, who had worked at companies such as AWS and Figma and kept running into the pain of managing application secrets. They enter
Doppler: How a Failed Crypto Side Project at Uber Turned Into a Secrets Management Company Doppler began in 2018 as Brian Vallelunga's night-time side project while he worked at Uber, a crypto machine learning marketplace that went nowhere. During a trip to Mexico he realized the recurring pain he kept hitting

Subcategories in the same part of the directory, with the number of listed products.