What powers swi-prolog.org?
Last seen Jun 2026 · 23 technologies across 13 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| prolog language | #4 | 530 |
| swi prolog | #1 | 180 |
| swi-prolog | #1 | 130 |
| prolog definition | #88 | 57 |
| prolog definition | #40 | 57 |
| define prologue | #95 | 47 |
| findall prolog | #1 | 43 |
| findall in prolog | #1 | 43 |
| prolog programming | #3 | 38 |
| prolog code | #3 | 38 |
| sqrt 1 | #32 | 35 |
| swipl | #1 | 33 |
| append prolog | #1 | 33 |
| prolog append | #1 | 33 |
| prolog language download | #1 | 27 |
| prolog download | #1 | 27 |
| cos1 | #34 | 25 |
| programming prolog | #3 | 24 |
| swipl download | #1 | 21 |
| swi-prolog downloads | #1 | 21 |
| swi prolog download | #1 | 21 |
| operators in prolog | #1 | 21 |
| prolog operators | #1 | 21 |
| prolog file extension | #1 | 21 |
| prolog extension | #1 | 21 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 91% desktop
- 9% phone
Israel
India
Japan
Germany
Brazil
Italy
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
7.68 / 10 · ranked #13,567 of all domains
592 referring domains · OpenPageRank
Search traffic
2,400 est. monthly organic visits (US)
1,402 keywords in Google's top 30
Core Web Vitals
| LCP | 0.9 s |
| INP | 25 ms |
| CLS | 0.1 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 0.2 MB · 18 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| discourse.swi-prolog.org | 14 |
| pengines.swi-prolog.org | 6 |
| swish.swi-prolog.org | 6 |
| www.swi-prolog.org | 6 |
| lpn.swi-prolog.org | 5 |
| cliopatria.swi-prolog.org | 4 |
| dev.swi-prolog.org | 4 |
| eu.swi-prolog.org | 4 |
| wasm.swi-prolog.org | 2 |