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Site Information

ibsen.com

Link authority for ibsen.com (registrable domain: ibsen.com) from the Common Crawl web graph: PageRank and harmonic centrality history since 2017, current scores, and the site's top backlink sources.

11Domain PageRank
41Host Backlinks
40Domain Backlinks
Link authority data (PageRank, harmonic centrality) and backlinks come from the Common Crawl web graph.
ibsen_com.profile
Current Scores

Web-graph authority (0-100)

Domain scores measure ibsen.com as a whole: every subdomain's links rolled up into one node of Common Crawl's domain-level web graph. Host scores measure the exact hostname ibsen.com. WWW scores cover the www variant of that hostname, which the graph tracks as its own entry since January 2026 (before that, www and bare host were merged). A big gap between domain and host usually means the domain's authority lives on other subdomains. PageRank is link-endorsement authority: how much weight the sites linking here carry themselves. Harmonic centrality measures reach: how close this site sits to the rest of the web when following links, which favors broadly connected sites over ones boosted by a few heavy linkers. All are normalized 0 to 100 within each crawl snapshot; a dash means that series does not exist for this site.

11
Domain PageRank
12
Host PageRank
-
WWW PageRank
95
Domain Harmonic Centrality
94
Host Harmonic Centrality
-
WWW Harmonic Centrality
Site Intelligence

Homepage

What ibsen.com presents on its own homepage: the page title, description, and the social share markup it publishes. Pulled from https://ibsen.com.

TitleOEM Spectrometers and Transmission Gratings - Ibsen Photonics
DescriptionIbsen Photonics is world leader in OEM Spectrometers (E.g. Raman, OCT, IMON and LIBS) and fused silica transmission gratings such as Phase masks, telecom, PCG and spectrometer gratings. By combining unique optical design capabilities with superior grating technology, Ibsen supplies compact, OEM spectrometers for applications such as UV, VIS, NIR, Raman, OCT, and fiber sensing.
OG TitleHome
OG DescriptionFocused 100% on OEM business, Ibsen Photonics is the preferred partner for leading industrial companies in volume supply of high performance spectrometers and transmission gratings.
OG Site NameIbsen Photonics
Twitter Cardsummary_large_image
Site Intelligence

Social accounts and contact points

Where this site maintains a presence and every reachable route its homepage exposes: social accounts, contact pages, addresses, and content feeds.

Facebook Ibsen-Photonics-106790281907522
Youtube UCDSBYWgNDZ44esZYudSHGjA (channel)
Linkedin ibsen-photonics (business)
Contact pages https://ibsen.com/contact-us/
Emails sales@ibsen.com
Phones +45 4434 7000
Blog https://ibsen.com/about-us/news/
Site Intelligence

Structured data (JSON-LD)

The schema.org markup this homepage publishes: the machine-readable identity search engines and AI systems read. Types found: WebPage, BreadcrumbList, WebSite, Organization, Corporation.

JSON-LD block (2,481 bytes)
{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/ibsen.com\/","url":"https:\/\/ibsen.com\/","name":"OEM Spectrometers and Transmission Gratings - Ibsen Photonics","isPartOf":{"@id":"https:\/\/ibsen.com\/#website"},"about":{"@id":"https:\/\/ibsen.com\/#organization"},"datePublished":"2011-08-29T08:43:17+00:00","dateModified":"2026-07-01T08:19:12+00:00","description":"Ibsen Photonics is world leader in OEM Spectrometers (E.g. Raman, OCT, IMON and LIBS) and fused silica transmission gratings such as Phase masks, telecom, PCG and spectrometer gratings. By combining unique optical design capabilities with superior grating technology, Ibsen supplies compact, OEM spectrometers for applications such as UV, VIS, NIR, Raman, OCT, and fiber sensing.","breadcrumb":{"@id":"https:\/\/ibsen.com\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/ibsen.com\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/ibsen.com\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home"}]},{"@type":"WebSite","@id":"https:\/\/ibsen.com\/#website","url":"https:\/\/ibsen.com\/","name":"Ibsen Photonics","description":"OEM spectrometers and transmission gratings","publisher":{"@id":"https:\/\/ibsen.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/ibsen.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/ibsen.com\/#organization","name":"Ibsen Photonics","url":"https:\/\/ibsen.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/ibsen.com\/#\/schema\/logo\/image\/","url":"https:\/\/cdn.ibsen.com\/wp-content\/uploads\/Ibsen_logo_blue_RGB-1920.webp","contentUrl":"https:\/\/cdn.ibsen.com\/wp-content\/uploads\/Ibsen_logo_blue_RGB-1920.webp","width":1920,"height":898,"caption":"Ibsen Photonics"},"image":{"@id":"https:\/\/ibsen.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/IbsenPhotonics\/","https:\/\/x.com\/IbsenPhotonics"],"description":"Focused 100% on OEM business, Ibsen Photonics is the preferred partner for leading industrial companies in volume supply of high performance spectrometers and transmission gratings.","email":"sales@ibsen.com","telephone":"44347000","legalName":"Ibsen Photonics","vatID":"26284066"}]}
JSON-LD block (5,642 bytes)
{
  "@context": "https://schema.org",
  "@type": "Corporation",
  "@id": "https://ibsen.com/#organization",
  "name": "Ibsen Photonics A/S",
  "alternateName": "Ibsen Photonics",
  "legalName": "Ibsen Photonics A/S",
  "url": "https://ibsen.com/",
  "foundingDate": "1991",
  "founder": {
    "@type": "Person",
    "name": "Per Ibsen"
  },
  "foundingLocation": {
    "@type": "Place",
    "address": {
      "@type": "PostalAddress",
      "addressLocality": "Farum",
      "addressCountry": "DK"
    }
  },
  "parentOrganization": {
    "@type": "Organization",
    "name": "FOSS A/S",
    "url": "https://www.fossanalytics.com/",
    "sameAs": "https://www.linkedin.com/company/foss"
  },
  "numberOfEmployees": {
    "@type": "QuantitativeValue",
    "minValue": 51,
    "maxValue": 200
  },
  "vatID": "DK26284066",
  "description": "Ibsen Photonics is a dedicated OEM manufacturer of compact spectrometer modules, fiber Bragg grating (FBG) interrogation monitors (I-MON), and high-efficiency fused-silica transmission gratings. Supplied in volume for UV, VIS, VIS-NIR, NIR, Raman, OCT, LIBS, telecom, laser and fiber-sensing applications, with in-house grating technology reaching up to ~90% diffraction efficiency.",
  "image": {
    "@type": "ImageObject",
    "url": "https://cdn.ibsen.com/wp-content/uploads/headquarter.webp"
  },
  "logo": {
    "@type": "ImageObject",
    "url": "https://cdn.ibsen.com/wp-content/uploads/ibsen-logo-white.svg"
  },
  "telephone": "+4544347700",
  "email": "info@ibsen.com",
  "address": {
    "@type": "PostalAddress",
    "streetAddress": "Ryttermarken 17",
    "addressLocality": "Farum",
    "postalCode": "3520",
    "addressCountry": "DK"
  },
  "location": {
    "@type": "Place",
    "name": "Ibsen Photonics HQ",
    "address": {
      "@type": "PostalAddress",
      "streetAddress": "Ryttermarken 17",
      "addressLocality": "Farum",
      "postalCode": "3520",
      "addressCountry": "DK"
    },
    "geo": {
      "@type": "GeoCoordinates",
      "latitude": 55.8197623,
      "longitude": 12.3601845
    },
    "hasMap": "https://www.google.com/maps/place/Ibsen+Photonics/@55.8197623,12.3601845,17z",
    "openingHoursSpecification": [
      { "@type": "OpeningHoursSpecification", "dayOfWeek": ["https://schema.org/Monday","https://schema.org/Tuesday","https://schema.org/Wednesday","https://schema.org/Thursday"], "opens": "08:00", "closes": "16:30" },
      { "@type": "OpeningHoursSpecification", "dayOfWeek": ["https://schema.org/Friday"], "opens": "08:00", "closes": "15:30" }
    ]
  },
  "contactPoint": [{
    "@type": "ContactPoint",
    "telephone": "+4544347700",
    "contactType": "sales",
    "email": "sales@ibsen.com",
    "areaServed": "Worldwide",
    "availableLanguage": ["English","German"]
  }],
  "employee": {
    "@type": "Person",
    "name": "Henrik Skov Andersen",
    "jobTitle": "CEO",
    "sameAs": ["https://dk.linkedin.com/in/dkhsa"]
  },
  "knowsAbout": [
    "OEM spectrometers",
    "Spectrometer modules for system integration",
    "Fused-silica transmission gratings",
    "Raman spectroscopy",
    "Optical coherence tomography (OCT)",
    "Near-infrared (NIR) spectroscopy",
    "UV-VIS spectroscopy",
    "Laser-induced breakdown spectroscopy (LIBS)",
    "Fiber Bragg grating (FBG) sensing",
    "Interrogation monitors",
    "Phase masks",
    "Pulse compression gratings",
    "Telecom gratings",
    "Spectral beam combining gratings",
    "Optical spectroscopy",
    "Diffractive optics"
  ],
  "memberOf": [
    { "@type": "Organization", "name": "SPIE - International Society for Optics and Photonics" },
    { "@type": "Organization", "name": "Optica (formerly OSA)" },
    { "@type": "Organization", "name": "EPIC - European Photonics Industry Consortium" }
  ],
  "award": [
    "Successful Business Award 2022 (Spar Nord & BDO)",
    "Borsen Gazelle Award 2021",
    "Borsen Gazelle Award 2019",
    "Borsen Gazelle Award 2018"
  ],
  "hasCredential": [
    { "@type": "OccupationalCredential", "name": "ISO 9001:2015 Certification" },
    { "@type": "OccupationalCredential", "name": "ISO 13485:2016 Certification" },
    { "@type": "OccupationalCredential", "name": "ISO 14001:2015 Certification" },
    { "@type": "OccupationalCredential", "name": "FDA Registration", "url": "https://ibsen.com/about-us/principles-and-policies/quality-management-and-compliance/" },
    { "@type": "OccupationalCredential", "name": "MDSAP Certification", "url": "https://ibsen.com/about-us/principles-and-policies/quality-management-and-compliance/" },
    { "@type": "OccupationalCredential", "name": "REACH Compliance", "url": "https://ibsen.com/about-us/principles-and-policies/quality-management-and-compliance/" },
    { "@type": "OccupationalCredential", "name": "RoHS Compliance", "url": "https://ibsen.com/about-us/principles-and-policies/quality-management-and-compliance/" }
  ],
  "sameAs": [
    "https://www.linkedin.com/company/ibsen-photonics",
    "https://www.youtube.com/channel/UCDSBYWgNDZ44esZYudSHGjA",
    "https://www.facebook.com/ibsenphotonics",
    "https://x.com/ibsenphotonics",
    "https://www.laserfocusworld.com/directory/fiber-optic-optoelectronic-components-equipment-systems/phase-masks/company/14046586/ibsen-photonics-a-s",
    "https://www.rp-photonics.com/bg/profiles/ibsen_photonics.html"
  ],
  "potentialAction": {
    "@type": "ContactAction",
    "target": {
      "@type": "EntryPoint",
      "urlTemplate": "https://ibsen.com/contact-us/"
    }
  }
}
JSON-LD block (497 bytes)
{
  "@context": "https://schema.org",
  "@type": "WebSite",
  "@id": "https://ibsen.com/#website",
  "url": "https://ibsen.com/",
  "name": "Ibsen Photonics",
  "inLanguage": ["en","de"],
  "publisher": { "@id": "https://ibsen.com/#organization" },
  "potentialAction": {
    "@type": "SearchAction",
    "target": {
      "@type": "EntryPoint",
      "urlTemplate": "https://ibsen.com/?s={search_term_string}"
    },
    "query-input": "required name=search_term_string"
  }
}
Web-Graph History

Authority over time

Every Common Crawl web-graph release since 2017, roughly quarterly. The domain series goes back to 2017; Common Crawl only began publishing the host-level graph in 2020, so host lines start there. Click a legend entry to show or hide that line. Flat lines are normal for established sites; watch for sustained rises or drops, which track real gains or losses in who links here.

A note on www: through the end of 2025 the source web graph merged www and non-www hostnames into the bare name, so one host line covers both. Starting in January 2026 the graph splits them into separate entries, which is why www can carry its own scores going forward.

Backlink Data

Backlink counts

Unique linking domains seen in Common Crawl's link graphs. This is a different dataset than the 0-100 authority scores above: these are raw counts, host-level for ibsen.com and domain-level for ibsen.com with all its subdomains combined. Common Crawl covers a large sample of the web, not all of it, so treat counts as comparable between sites rather than absolute totals.

41
Host Backlinks
40
Domain Backlinks
Backlink Data

Top backlinks in the domain graph

Common Crawl publishes two link graphs. The DOMAIN graph connects whole domains: every link from any page of one domain to any page of another. This table shows the highest-authority domains linking to ibsen.com (including its subdomains), ranked by the linker's PageRank. The table shows the top 40; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.

Download domain backlinks (.json)

Linking SiteLinker PageRankLinker Harmonic Centrality
wikipedia.org9053
copernicus.org6836
au.dk6735
optica.org6635
hackaday.io6035
theorg.com5934
laserfocusworld.com5434
analytica.de5222
world-of-photonics.com5022
epic-photonics.com4718
ivam.de4520
wileyindustrynews.com4423
w3-fair.com4422
scriptiebank.be4123
estatistik.dk3423
zxc.wiki3323
lenlasers.ru3322
nvhus.dk3322
spectronet.de3222
wiki.li3218
ceitec-sa.com3123
refractor.io2922
ibsenphotonics.com2422
etesters.com2419
einstinc.com2417
optoindex.com2318
prologoptics.com2317
melss.com2222
3af-optro.com2121
td-j.ru1817
oliver-pust.de917
ceitec-sa.com.br713
kyeddesign.dk710
rejserdanmark.eu610
molokai-project.eu513
calibrationmodel.com513
lhcom.dk58
visionarydatareports.com312
ibsen.dk217
wangnick.de217
40 linking sitessAll results shown
Backlink Data

Top backlinks in the host graph

The HOST graph connects exact hostnames, so subdomains count separately. This table shows the highest-authority hosts linking to ibsen.com specifically, ranked by the linker's PageRank. The table shows the top 41; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.

Download host backlinks (.json)

Linking SiteLinker PageRankLinker Harmonic Centrality
de.wikipedia.org8132
hackaday.io5725
www.optica.org5623
tc.copernicus.org5024
www.laserfocusworld.com5023
conferences.au.dk4721
epic-photonics.com4515
w3-fair.com4416
wileyindustrynews.com4014
www.ivam.de3917
lenlasers.ru3718
exhibitors.world-of-photonics.com3415
www.spectronet.de3216
de.wiki.li3214
nvhus.dk3214
scriptiebank.be2921
de.zxc.wiki2717
www.einstinc.com2613
refractor.io2517
optoindex.com2514
www.melss.com2213
www.ceitec-sa.com2021
www.3af-optro.com1714
prologoptics.com1613
www.ibsenphotonics.com1415
www.ibsen.com914
td-j.ru912
cdn.ibsen.com811
calibrationmodel.com713
klub.rejserdanmark.eu58
www.ceitec-sa.com.br413
lhcom.dk46
www.ibsen.dk213
wiki.wangnick.de113
ibsenphotonics.com08
dft.etesters.com00
kyeddesign.dk00
apex.etesters.com00
ibsen.dk00
shop.ibsen.com00
oliver-pust.de00
41 linking sitessAll results shown