Developer Tools2 weeks ago
SpamCrackers — Free SPF, DKIM & DMARC Checker & Email Signal Standard
Grade a domain's email protection: check SPF, DKIM, DMARC, and MX records in your browser.
@domainfyrbrand · X
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Grade a domain's email protection: check SPF, DKIM, DMARC, and MX records in your browser.
@domainfyrbrand · X
Monitor DNS posture and perform WHOIS lookups with instant insights.
@DNSAssistant_ · X
Automatically configure DMARC, SPF, and DKIM to prevent email spoofing and improve deliverability.
@okamigenshin · X
Try Authex, for securing your domain and email autonomously.
Explore recently registered domains grouped by keyword with daily updates.
@dotcorner · X
Spot recently registered domain names grouped by keyword. Updates at 8:30 AM Eastern daily. Disclosure: Vibe-coded, work in progress. Not a financial advice and DYOR #domains #domainsales #newdomains #domainnames #domainforsales.
Look up any IPv4 or IPv6 address across geolocation, ASN, registry, and IP reputation sources in one clear report.
@fatwang2ai · X
做了一个 IP 检测工具： 开源。一次查询汇总 13 个数据源的风险评分、代理/机房类型和网络归属。不同平台的判断经常不一样，有些数据库甚至提供付费修正机制。与其只信某一家，不如把共识和差异放在一起看，更全面地了解你的 IP
Analyze Hacker News profiles with your own LLM API key, fully client-side.
Topfi · HN
Like everyone on HN, I love nothing more than to (re)read my own comments. Getting my intuition that I am among the smartest, most humble, highest quality commenters on here confirmed by an LLM so capable that the US government had to temporarily export restrict it [0] seemed only natural. Having had my perfection confirmed, I decided to share this joy with you as I had a few percent usage left before a reset. I took a few prompts, then did a review of the output which resulted in Selbstbild, a BYOK (Anthropic / OpenRouter) web app that gives you a summary and assessment of your public comments by one of our machine Gods, including Fable 5 (provided your can afford that luxury at API pricing). In all seriousness, I have, for a long time, used my own comments on social media (including HN) as part of a personal needle-in-haystack test, simply because I do know my somewhat peculiar style and what I tend to write, but also because I can sometimes write in a slightly confusing manner, ma
Look up backlinks and referring domains for any website via pay-per-lookup API.
@rankparse · X
Monitor SSL certificates and website security with continuous checks for renewal, headers, and DNS.
@di_spivak · X
Monitor website uptime, SSL certificates, and DNS from a centralized dashboard with alerts to Slack, email, and SMS.
@adambalee · X
Built Sentinel 👋 Instant free URL check on the homepage. Every free account also includes 1 public status page, even for commercial use.
Scan websites for security vulnerabilities with A–F grades, fix guides, and weekly monitoring alerts.
@korisecurity · X
What we have now: Vibe coding -> Vibe testing -> Vibe marketing -> Vibe users -> Vibe subscriptions. You may do all but don't Vibe Secure! Scan for those open ports, missing DKIMs or CVEs. Use a professional tool
Web monitoring tool that scores information and surfaces significant events as alerts.
arvind_pcode · HN
ScoutFox – An alert layer for first-mover intelligence
Look up IP addresses to get country, ASN, and organization data via API or web interface.
@IPClues · X
Hey, developers and SaaS founders, this is newly hatching Internet Intelligence. is an IP-to-Geolocation service for you head over and test before it is released to public.