Frabs API
Run any Frabs check programmatically. The website itself will always be free and account-free. The API is a separate, paid product for anyone who wants these checks in their own tools or scripts.
Create a developer account to get your API key
Takes under a minute. No card needed until you pick a plan.
Pricing
Authentication
Send your API key as a bearer token on every request:
curl -X POST https://frabs.net/api/v1/dns-lookup \
-H "Authorization: Bearer frabs-583920174659208317446092" \
-H "Content-Type: application/json" \
-d '{"input": "frabs.net"}'Every endpoint returns { "data": { ... } } on success or { "error": { "code": "...", "message": "..." } } on failure, with a matching HTTP status: 401 for a missing or invalid key, 402 for no active subscription, 429 once you’ve used your plan’s quota for the billing period, and 502 if the check itself couldn’t be completed (e.g. the target didn’t respond).
Endpoints
Every endpoint is a POST to /api/v1/<endpoint> with a JSON body of { "input": "..." }, where the input is a domain, URL, IPv4 or IPv6 address.
/api/v1/dns-lookup
DNS Lookup
/api/v1/dns-propagation
DNS Propagation
/api/v1/ssl-checker
SSL Checker
/api/v1/security-headers
Security Headers
/api/v1/redirect-checker
Redirect Checker
/api/v1/http-headers
HTTP Headers
/api/v1/port-checker
Port Checker
/api/v1/ping-test
Ping Test
/api/v1/ip-lookup
IP Lookup
/api/v1/asn-lookup
ASN Lookup
/api/v1/reverse-dns
Reverse DNS
/api/v1/whois-lookup
WHOIS Lookup
/api/v1/mx-lookup
MX Lookup
/api/v1/spf-checker
SPF Checker
/api/v1/dmarc-checker
DMARC Checker
/api/v1/ipv6-test
IPv6 Test
/api/v1/uptime-checker
Uptime Checker
/api/v1/technology-checker
Website Technology Checker
/api/v1/speed-test
Website Speed Test
/api/v1/traceroute
Traceroute
/api/v1/meta-tag-checker
Meta Tag Checker
/api/v1/og-preview
Open Graph Preview
/api/v1/robots-txt-tester
Robots.txt Tester
/api/v1/sitemap-checker
Sitemap Checker
/api/v1/blacklist-checker
Blacklist Checker
/api/v1/http-status-checker
HTTP Status Code Checker
/api/v1/email-validator
Email Validator