solver4j.com
solver4j.com is a live English-language website hosted on Contabo GmbH (AS51167) in France, served by Apache. cl0q first saw it on 2026-07-24 and last crawled it on 2026-07-29. It resolves to 194.163.130.31. Its favicon is fingerprinted by SHA-256, so you can find every other site that serves the same icon.
How the site describes itself:
Solver4J – The Java Solver
free java library for general convex optimization problems (LP, QP, QCQP, SOCP, SDP, GP, etc) with barrier and primal dual interior point methods
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2026-07-24 |
| Last crawled | 2026-07-29 |
| IPv4 | 194.163.130.31 |
| Network | AS51167 Contabo GmbH · France |
| Language | en |
| Server | Apache/2.4.41 (Ubuntu) |