postbackurl.io
postbackurl.io is a live English-language website hosted on Amazon.com, Inc. (AS16509) in the United States, served by Cloudflare. cl0q first saw it on 2026-08-03 and last crawled it on 2026-08-06. It resolves to 3.131.150.69 and has mail (MX) records set up. Its favicon is fingerprinted by SHA-256, so you can find every other site that serves the same icon.
How the site describes itself:
Postback URL
Everything you need to know about Postback URLs, how to use them, where to use them and what you gain from using them.
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2026-08-03 |
| Last crawled | 2026-08-06 |
| IPv4 | 3.131.150.69 |
| Network | AS16509 Amazon.com, Inc. · Ohio |
| Mail (MX) | aspmx.l.google.com,alt2.aspmx.l.google.com,alt1.aspmx.l.google.com,alt3.aspmx.l.google.com,alt4.aspmx.l.google.com |
| Language | en |
| Server | cloudflare |