Is This a Redirect?
Looks up a domain under redirects.rbl.domainsure.zone and reports whether it is listed as a redirect or URL shortener, including TXT explanations when present.
Use This Skill
Endpoints
| Method | Path | Status | Modes |
|---|---|---|---|
| GET/POST | /api/v1/isredirect |
live | json |
Input Contract
Provide a fully qualified domain name. Browser users may paste a URL; the hostname is extracted before lookup.
Output Contract
Returns normalized domain, lookup name, listed status, redirect-or-shortener boolean, A listing records, TXT explanations, verdict, and summary.
Errors
Empty input, invalid domain, IP address input, overly long input, or DNS lookup failure.
Auth and Limits
Anonymous JSON API for initial rollout. Use the /api/v1 endpoint for agents; browser form submissions remain protected by CSRF and reCAPTCHA.
JSON API uses the standard API throttle.
Examples
Requests
GET /api/v1/isredirect?domain=bit.lyPOST /api/v1/isredirect {"domain":"bit.ly"}Responses
{"skill":"isredirect","domain":"bit.ly","lookup_domain":"bit.ly.redirects.rbl.domainsure.zone","is_redirect_or_url_shortener":true,"txt_records":["Known URL shortener."],"explanation":"Known URL shortener."}FAQ
What DNS name is queried?
The skill queries the supplied domain below redirects.rbl.domainsure.zone, for example bit.ly.redirects.rbl.domainsure.zone.
What does a TXT record mean?
When the lookup name has TXT records, the TXT text is returned as the explanation for the listing.
Does not listed mean the domain never redirects?
No. It means the domain was not listed in this DomainSure redirect and URL shortener zone at lookup time.