photonics21.org website report
Authority, global rank, the websites that link to photonics21.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 photonics21.org?
photonics21.org has an XKey authority of 23 out of 100, which makes it a moderately established website. It ranks #1,820,529 of 133,241,980 websites by how central it is to the web's links – the top 2%. 331 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 photonics21.org?
The 50 strongest websites linking to photonics21.org, by link strength (0–100). Select any one to see its own report.
| # | Website linking to it | Link strength |
|---|---|---|
| 1 | europa.eu | 84 |
| 2 | blogspot.com | 82 |
| 3 | substack.com | 75 |
| 4 | www.gov.uk | 74 |
| 5 | frontiersin.org | 70 |
| 6 | service.gov.uk | 68 |
| 7 | nist.gov | 67 |
| 8 | ucl.ac.uk | 63 |
| 9 | digitaltrends.com | 62 |
| 10 | fraunhofer.de | 61 |
| 11 | news-medical.net | 61 |
| 12 | euractiv.com | 60 |
| 13 | rwth-aachen.de | 59 |
| 14 | gov.hu | 59 |
| 15 | csic.es | 59 |
| 16 | cnr.it | 58 |
| 17 | europeanbusinessreview.com | 58 |
| 18 | unige.ch | 57 |
| 19 | uni-ulm.de | 56 |
| 20 | ugent.be | 56 |
| 21 | tu-dresden.de | 56 |
| 22 | uni-stuttgart.de | 56 |
| 23 | tcd.ie | 55 |
| 24 | polimi.it | 55 |
| 25 | unipd.it | 55 |
| 26 | uniroma1.it | 55 |
| 27 | uni-lj.si | 54 |
| 28 | quantamagazine.org | 54 |
| 29 | unizar.es | 53 |
| 30 | zhaw.ch | 52 |
| 31 | cea.fr | 52 |
| 32 | ntua.gr | 52 |
| 33 | polito.it | 52 |
| 34 | uc3m.es | 52 |
| 35 | tuni.fi | 51 |
| 36 | hw.ac.uk | 51 |
| 37 | oulu.fi | 51 |
| 38 | zcu.cz | 50 |
| 39 | uef.fi | 50 |
| 40 | meduniwien.ac.at | 50 |
| 41 | sintef.no | 49 |
| 42 | bfh.ch | 49 |
| 43 | universite-paris-saclay.fr | 49 |
| 44 | bournemouth.ac.uk | 49 |
| 45 | pw.edu.pl | 49 |
| 46 | u-paris.fr | 48 |
| 47 | fi.co | 48 |
| 48 | azom.com | 48 |
| 49 | 3dprintingindustry.com | 47 |
| 50 | b2match.com | 47 |
Showing the strongest 50 of 331. Compare photonics21.org with a competitor in the backlink checker.
When was photonics21.org registered?
photonics21.org was registered on 20 October 2005 through RegistryGate GmbH, and is paid up until 20 October 2027.
| Registered | 20 October 2005 |
|---|---|
| Expires | 20 October 2027 |
| Last updated | 20 October 2026 |
| Registrar | RegistryGate GmbH |
| Name servers | ns1.net-server.de, ns2.net-server.de |
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 photonics21.org hosted, and what is it built with?
We check the live website when you ask, so this page stays fast.
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Link data: Common Crawl web graph, July–September 2026. Registration data: the domain registry, checked 10 November 2026. Look up another website on the website report page.