sdf-eu.org website report
Authority, global rank, the websites that link to sdf-eu.org, when it was registered and where it's hosted – free, from public data.
authority
global rank of 133,241,980
websites link to it
domain age
How strong is sdf-eu.org?
sdf-eu.org has an XKey authority of 42 out of 100, which makes it a well-established website. It ranks #51,472 of 133,241,980 websites by how central it is to the web's links – the top 0.04%. 267 different websites link to it.
Authority comes from Common Crawl's map of links between websites (July–September 2026): a site linked from many well-linked sites scores high. Google doesn't use this number, but it tracks the kind of link strength that helps pages rank. What is domain authority?
Which websites link to sdf-eu.org?
The 50 strongest websites linking to sdf-eu.org, by link strength (0–100). Select any one to see its own report.
| # | Website linking to it | Link strength |
|---|---|---|
| 1 | google.com | 99 |
| 2 | wikipedia.org | 88 |
| 3 | blogspot.com | 82 |
| 4 | github.com | 81 |
| 5 | wikimedia.org | 77 |
| 6 | stanford.edu | 72 |
| 7 | mdpi.com | 71 |
| 8 | livejournal.com | 68 |
| 9 | nist.gov | 67 |
| 10 | narod.ru | 62 |
| 11 | debian.org | 61 |
| 12 | org.ru | 61 |
| 13 | habr.com | 59 |
| 14 | warwick.ac.uk | 58 |
| 15 | uva.nl | 58 |
| 16 | libreoffice.org | 58 |
| 17 | hypotheses.org | 57 |
| 18 | uni-bonn.de | 57 |
| 19 | au.dk | 56 |
| 20 | umontreal.ca | 56 |
| 21 | sc.edu | 56 |
| 22 | hse.ru | 56 |
| 23 | hypothes.is | 55 |
| 24 | ya.ru | 54 |
| 25 | surrey.ac.uk | 54 |
| 26 | netzpolitik.org | 54 |
| 27 | uni-bielefeld.de | 53 |
| 28 | maastrichtuniversity.nl | 53 |
| 29 | scienceblogs.com | 52 |
| 30 | lesswrong.com | 52 |
| 31 | tuxfamily.org | 51 |
| 32 | unizg.hr | 51 |
| 33 | gnupg.org | 51 |
| 34 | unc.edu.ar | 50 |
| 35 | rim.or.jp | 49 |
| 36 | torun.pl | 49 |
| 37 | distrowatch.com | 49 |
| 38 | openwall.com | 48 |
| 39 | polityka.pl | 48 |
| 40 | ovgu.de | 48 |
| 41 | dagstuhl.de | 47 |
| 42 | netbsd.org | 47 |
| 43 | emnuvens.com.br | 46 |
| 44 | ktu.edu | 45 |
| 45 | sdf.org | 45 |
| 46 | stratos-ad.com | 44 |
| 47 | enriquedans.com | 44 |
| 48 | freeshell.org | 44 |
| 49 | univ-orleans.fr | 44 |
| 50 | squat.net | 43 |
Showing the strongest 50 of 267. Compare sdf-eu.org with a competitor in the backlink checker.
When was sdf-eu.org registered?
sdf-eu.org was registered on 28 January 2002 through Tucows Domains Inc., and is paid up until 28 January 2027.
| Registered | 28 January 2002 |
|---|---|
| Expires | 28 January 2027 |
| Last updated | 12 August 2026 |
| Registrar | Tucows Domains Inc. |
| Name servers | ns-a.sdf.org, ns-b.sdf.org, ns-c.sdf.org, ns-d.sdf.org |
Straight from the domain registry. Owners' personal details are hidden by law, so to reach the owner use the website's own contact page or the registrar. Full record: WHOIS lookup.
Where is sdf-eu.org hosted, and what is it built with?
We check the live website when you ask, so this page stays fast.
More free checks for sdf-eu.org
- Full SEO check – about 50 checks for Google and AI search
- SSL checker – certificate and https
- DNS lookup and MX lookup
- Hosting checker and technology checker
- Domain age checker for up to 100 sites at once
Link data: Common Crawl web graph, July–September 2026. Registration data: the domain registry, checked 4 November 2026. Look up another website on the website report page.