SSL Certificate & DNS Checker — Expiry, Issuer, DNS Records

Check SSL/TLS certificates for any website: expiration date, issuer, subject, hostname match (SNI), chain/authorization status, and common HTTPS misconfigurations. Useful for SEO audits, security checks, and uptime monitoring.

DNS Lookup – Bulk DNS Records, MX, SPF & DMARC Checker

gazidev/bulk-dns-lookup

Bulk DNS lookup for thousands of domains: A, AAAA, MX, NS, TXT, CNAME, SOA, CAA records, SPF checker with 10-lookup limit, DMARC policy & rua, DKIM selectors, MTA-STS, BIMI, reverse DNS, change monitoring. Pick resolver: 1.1.1.1, 8.8.8.8 or custom. $1 per 1,000 domains.

Website HTTPS & SSL Health Checker

pillowy_travel/website-https-ssl-health-checker

Checks HTTPS availability and SSL certificate health for given URLs

SSL Certificate Checker

automation-lab/ssl-certificate-checker

SSL Certificate Checker connects to domains over TLS and inspects their SSL certificates. It returns structured data about certificate validity, expiry, issuer chain, TLS protocol version, cipher suite, and a security grade from A+ to F.

DNS Lookup | Scrape Domain Records & Security Intelligence

datascoutapi/dns-lookup

DNS lookup scrapes 22 data points including 10 DNS records (A, AAAA, MX, TXT, NS, CNAME, SOA, SRV, PTR, CAA) + email security analysis ( SPF/DKIM/DMARC), SSL certificate checker, domain monitoring. Processes 100 domains per batch with security scoring.

Check domain availability and fetch WHOIS records, DNS records, and SSL certificate details in one call. Supports bulk domain lists — useful for domain research, brand monitoring, and infrastructure audits.

SSL Certificate Checker — Bulk Expiry & Chain Monitor

nexgendata/ssl-certificate-checker

Bulk SSL/TLS certificate checker: for a list of domains, returns validity, expiry/days-remaining, issuer, subject, SANs, protocol, and cipher. For DevOps, security, and cert-expiry monitoring.

DNS lookup API: Intelligence & Security Analyzer

njoylab/apify-dns

A powerful DNS intelligence tool that performs multi-record lookups, global propagation checks, reverse DNS, SSL/TLS inspection, email security analysis, and rich metadata extraction all in one automated workflow

Domain Health Checker

zinin/domain-health-checker

Audit DNS resolution, MX, SPF, DMARC, name servers, and TLS for a list of domains. Complete evidence cards include a 0–100 score, source states, issues, confidence, data gaps, and a next action. Incomplete or unsafe destinations remain unscored and are not billed as results.

🛡️ Subdomain Finder, Attack Surface & SSL OSINT Scanner

unrivaled_fortress/ssl-certificate-checker

SSL Labs-style certificate inspector: paste domains, get issuer, validity dates, days-to-expiry, SANs, TLS version, cipher and a security grade (A+→F) for every host. No API key, no proxy.