institutoptique.fr website report
Authority, global rank, the websites that link to institutoptique.fr, 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 institutoptique.fr?
institutoptique.fr has an XKey authority of 29 out of 100, which makes it a moderately established website. It ranks #581,007 of 133,241,980 websites by how central it is to the web's links – the top 0.44%. 326 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 institutoptique.fr?
The 50 strongest websites linking to institutoptique.fr, by link strength (0–100). Select any one to see its own report.
| # | Website linking to it | Link strength |
|---|---|---|
| 1 | wikipedia.org | 88 |
| 2 | github.io | 78 |
| 3 | wixsite.com | 76 |
| 4 | cornell.edu | 71 |
| 5 | yale.edu | 68 |
| 6 | coursera.org | 67 |
| 7 | over-blog.com | 64 |
| 8 | utoronto.ca | 63 |
| 9 | dev.to | 63 |
| 10 | virginia.edu | 62 |
| 11 | mpg.de | 62 |
| 12 | esa.int | 61 |
| 13 | ucsb.edu | 61 |
| 14 | cnrs.fr | 61 |
| 15 | canalblog.com | 60 |
| 16 | gatech.edu | 60 |
| 17 | caltech.edu | 60 |
| 18 | britishcouncil.org | 59 |
| 19 | wikidata.org | 59 |
| 20 | uni-heidelberg.de | 59 |
| 21 | scirp.org | 58 |
| 22 | epfl.ch | 57 |
| 23 | hypotheses.org | 57 |
| 24 | ucf.edu | 57 |
| 25 | au.dk | 56 |
| 26 | inserm.fr | 56 |
| 27 | archives-ouvertes.fr | 56 |
| 28 | inria.fr | 56 |
| 29 | uni-stuttgart.de | 56 |
| 30 | ufrj.br | 55 |
| 31 | southampton.ac.uk | 55 |
| 32 | lehigh.edu | 54 |
| 33 | uni-kl.de | 54 |
| 34 | uni-hannover.de | 54 |
| 35 | sciencesconf.org | 54 |
| 36 | ielts.org | 54 |
| 37 | zju.edu.cn | 53 |
| 38 | edf.fr | 53 |
| 39 | auth.gr | 53 |
| 40 | strath.ac.uk | 53 |
| 41 | uni-jena.de | 53 |
| 42 | nouvelle-aquitaine.fr | 53 |
| 43 | ens.fr | 53 |
| 44 | cvut.cz | 52 |
| 45 | u-bordeaux.fr | 52 |
| 46 | cea.fr | 52 |
| 47 | univ-lorraine.fr | 52 |
| 48 | usherbrooke.ca | 52 |
| 49 | sorbonne-universite.fr | 51 |
| 50 | tech.eu | 51 |
Showing the strongest 50 of 326. Compare institutoptique.fr with a competitor in the backlink checker.
When was institutoptique.fr registered?
institutoptique.fr was registered on 10 September 2002 through GANDI, and is paid up until 15 December 2027.
| Registered | 10 September 2002 |
|---|---|
| Expires | 15 December 2027 |
| Last updated | 15 December 2025 |
| Registrar | GANDI |
| Name servers | dns1.institutoptique.fr, dns1.ioa.institutoptique.fr, dns2.institutoptique.fr, dns2.ioa.institutoptique.fr |
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 institutoptique.fr 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.