Deal score
Domain rating
Backlinks
Organic traffic
Current bid
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DR-49 authority for $2,226 · 810 referring domains · real content since 2009
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$0
below valuation
31
competing bids
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remaining
SpinRDF.org has long-running archives documenting the SPIN standard for SPARQL inferencing. It attracted natural academic and developer citations. The technology was largely succeeded by SHACL, explaining the decline. The domain retains strong authority for semantic web topics.
SEO value
High domain rating and many natural academic backlinks give strong authority, though traffic has declined. The domain remains valuable for semantic web documentation or tooling.
Ahrefs organic traffic
Wayback captures by year
Backlink quality
Recorded backlink quality is 63/100.
Marketplace content flag
GoDaddy content classification is not available.
Archive continuity
Largest recorded archive gap is 183 days.
Actual links pointing to this domain
| Source page | DR | Anchor and target | Type | Status | |
|---|---|---|---|---|---|
en Resource Description Framework en.wikipedia.org | 97 | "SPIN - SPARQL Inferencing Notation" .spinrdf.org.spinrdf.org | Raw HTML | Indexed | |
gi GitHub - ozekik/awesome-ontology: A curated list of ontology things · GitHub github.com | 97 | SPIN (SPARQL Inferencing Notation) (virtually succeeded by SHACL, see From SPIN to SHACL )spinrdf.org/spin-shacl.html | Rendered | Indexed | |
w3 SPIN - Modeling Vocabulary w3.org | 94 | The URL of the SPIN Standard Module library (SPL) is http://spinrdf.org/splspinrdf.org/spl | Raw HTML | Indexed | |
ns SQL Abstract Syntax Trees Vocabulary ns.inria.fr | 87 | W3C Member Submission (work in progress). Latest edition available at http://spinrdf.org/sp.html .spinrdf.org/sp.html | Rendered | Indexed | |
gs DrEWE - GSI Project Dashboard gsi.upm.es | 83 | to process low level events and create high level events; SPIN SPARQL Syntax to process this high level events and orderspinrdf.org | Raw HTML | Indexed |
Websites currently linking to this domain
Showing a stored sample of 3 of 810 referring domains reported by Ahrefs.
Referring Domain | ||
|---|---|---|
| github.com | 100 | 3 |
| google.com | 100 | 3 |
| wikipedia.org | 100 | 14 |
3 entries
Strong traffic, highly concentrated
Ahrefs organic traffic
Keyword | ||
|---|---|---|
| spin framework | 10 | 100 |
Archive workspace
Archive verdict
Real content on both sides of the largest gap — consistent with a drop-catch or repurpose. Verify with the linked captures before relying on it.
First real content
first 200 HTML calc
Last real content
not the last capture
Coverage
of 213 span months
Largest gap
Monthly · UTC · zero months shown
Era classification is inf from the capture mix.
Peak cadence
103/mo calc
Content months
132 calc
Material gaps
3 calc
Largest gap · 183 dayscalc
Cadence 0/mo before → 1/mo after. calc
No captures since calc
Oct 2026 — 23 days and counting.
Not counted as a gap: nothing bounds it on the far side. Absence of captures is not proof the site is down.
Other material gaps
Explore historical captures of the domain
URL | Type | View | |||||
|---|---|---|---|---|---|---|---|
| /spinrdf.org | 09/23/202621:28 UTC | 200 | HTML document | 4.2 KB | 321 | 18 | View |
| /spspinrdf.org | 10/11/202607:53 UTC | 200 | HTML document | 542 B | 135 | 12 | View |
| /spinspinrdf.org | 10/06/202605:24 UTC | 200 | HTML document | 540 B | 90 | 9 | View |
| /spin.htmlspinrdf.org | 08/12/202606:06 UTC | 200 | HTML document | 17.3 KB | 83 | 15 | View |
| /sp.htmlspinrdf.org | 07/21/202615:36 UTC | 200 | HTML document | 10.1 KB | 75 | 14 | View |
| /spifspinrdf.org | 10/06/202614:24 UTC | 200 | HTML document | 541 B | 67 | 6 | View |
| /shacl-and-owl.htmlspinrdf.org | 05/21/202623:12 UTC | 200 | HTML document | 12.8 KB | 45 | 9 | View |
| /spl.htmlspinrdf.org | 12/13/202510:02 UTC | 200 | HTML document | 5.0 KB | 42 | 6 | View |
| /spinx.htmlspinrdf.org | 07/13/202610:00 UTC | 200 | HTML document | 3.7 KB | 37 | 6 | View |
| /spinstack.htmlspinrdf.org | 08/12/202606:06 UTC | 200 | HTML document | 2.9 KB | 36 | 7 | View |
| /faq.htmlspinrdf.org | 12/30/202515:03 UTC | 200 | HTML document | 2.2 KB | 32 | 6 | View |
| /spin-shacl.htmlspinrdf.org | 06/17/202600:21 UTC | 200 | HTML document | 9.1 KB | 31 | 8 | View |
| /spr.htmlspinrdf.org | 08/12/202606:06 UTC | 200 | HTML document | 5.8 KB | 29 | 5 | View |
| /spinsquare.htmlspinrdf.org | 07/20/202503:58 UTC | 200 | HTML document | 5.4 KB | 28 | 4 | View |
| /spin-architecture.htmlspinrdf.org | 06/17/202314:07 UTC | 200 | HTML document | 1.6 KB | 22 | 3 | View |
| /ldomprimer.htmlspinrdf.org | 12/13/202510:59 UTC | 200 | HTML document | 823 B | 8 | 2 | View |
| /index.htmlwww.spinrdf.org | 09/10/201604:33 UTC | 200 | HTML document | 3.7 KB | 4 | 2 | View |
| /spin-min.htmlspinrdf.org | 01/20/202511:59 UTC | 200 | HTML document | 4.1 KB | 4 | 2 | View |
Showing 1–18 of 18 captures