claessen.net
A well-organized directory of chemistry resources, offering curated links to free software, databases, academi… 🔗
Global Rankeez rank — last updated 01 Sep 2026
Better than 93.2% of the 100,511,422 domains we track
Source breakdown
Rankeez combines several independent public rankings. Here's how claessen.net scores in each:
| Source | Rank |
|---|---|
| DomCop / OpenPageRank | #5,758,699 |
| CommonCrawl (hyperlink graph) | #2,196,683 |
See how these sources are combined and cross-validated →
Ranking history
claessen.net's rank across 5 monthly snapshots. ▲ improved by 14,204,667 since 2026-07
| Month | Rank |
|---|---|
| 2026-07 | #21,062,628 |
| 2026-08 | #21,055,310 |
| 2026-09 | #6,857,961 |
| 2026-10 | #6,859,752 |
| 2026-11 | #6,857,961 |
JSON API
{
"claessen.net": 6857961,
"history": {
"2026-07": 21062628,
"2026-08": 21055310,
"2026-09": 6857961,
"2026-10": 6859752,
"2026-11": 6857961
}
}
GET https://rankeez.com/api/claessen.net.json · see API docs →
More about claessen.net
claessen.net — page content & similar sites →
Rolf Claessen's Chemistry Index is the WWW portal for all chemists with thousands of links to freeware, discounted software, companies, free databses, online journals, societies, job resources, spectroscopy resources, reaction mechanisms and much more. It
claessen.net — full site profile →
WHOIS, tech stack and extended traffic history for claessen.net.