opterio.com
opterio.com is a live English-language website hosted on Amazon.com, Inc. (AS16509) in the United States, served by Vercel. cl0q first saw it on 2026-10-22 and last crawled it on 2026-10-22. It resolves to 216.150.1.1 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:
Eye Care Certification Exam Prep | Opterio
Practice questions for the ABO, NCLE, COA, COT, CPO, and CPOA certification exams. Study by domain in short sessions, see where you stand, and sit the exam when you are ready.
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2026-10-22 |
| Last crawled | 2026-10-22 |
| IPv4 | 216.150.1.1 |
| Network | AS16509 Amazon.com, Inc. · California |
| Mail (MX) | in1-smtp.messagingengine.com,in2-smtp.messagingengine.com |
| Language | en |
| Server | Vercel |