What powers 
kb.se?
Last seen Oct 2026 · 62 technologies across 19 categories
Analytics
CDN
CMS
Databases
DMS
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Performance
Programming languages
Security
UI frameworks
Video players
Web frameworks
Web server extensions
Web servers
Webmail
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 *: Restricted (was Blocked)
- Oct 2026 *: Blocked (was Restricted)
- Aug 2026 *: Restricted (was Blocked)
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| codex gigas | #2 | 2,900 |
| devil's bible codex gigas | #2 | 2,900 |
| the codex gigas | #2 | 260 |
| codex gigas | #14 | 100 |
| national library of sweden | #1 | 43 |
| kungliga biblioteket | #1 | 43 |
| devil's bible codex gigas | #20 | 43 |
| devil's bible | #3 | 43 |
| codex gigas illustrations | #2 | 42 |
| codex gigas | #78 | 38 |
| codex gigas | #34 | 38 |
| devil's bible codex gigas | #52 | 38 |
| codex gigas devil picture | #2 | 28 |
| gigas | #9 | 27 |
| codex gigas book | #4 | 26 |
| where is the codex gigas | #3 | 14 |
| national library of sweden | #3 | 14 |
| the devil's bible book | #6 | 10 |
| codex gigas the devil's bible | #78 | 9 |
| codex gigas the devil's bible | #64 | 9 |
| codex gigas illustrations | #6 | 9 |
| codex gigas picture of heaven | #2 | 8 |
| codex book | #14 | 7 |
| stockholm library | #7 | 7 |
| devil's bible | #9 | 7 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 66% desktop
- 32% phone
- 2% tablet
Sweden
Germany
United Kingdom
Netherlands
Finland
France
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
8.54 / 10 · ranked #2,127 of all domains
3,502 referring domains · OpenPageRank
Search traffic
6,800 est. monthly organic visits (US)
235 keywords in Google's top 30
Core Web Vitals
| LCP | 0.8 s |
| INP | 200 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Swedish
- Weight: 0.8 MB · 16 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Similar sites
meduniwien.ac.at 3 sharedupce.cz 4 shared
eui.eu 4 shared
bfh.ch 3 shared- ug.edu.ge 3 shared
uni-muenster.de 5 shared
Closest technology stacks among the highest-authority sites we track; "shared" counts the distinctive technologies in common.
Organisation
- National Library of Sweden
- Founded: 1661
- Country: Sweden
From Wikidata (CC0).
Infrastructure
- Hosted on SUNET - Vetenskapsradet / SUNET (130.242.45.96, IPv6)
- DNS: kb.se
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 940, 145 hosts
- Verified with: Apple Business, Atlassian, Google, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| kb.se | 18 |
| data.kb.se | 15 |
| metadatabyran.kb.se | 15 |
| regina.kb.se | 15 |
| feedback.blogg.kb.se | 14 |
| www.kb.se | 14 |
| arken.kb.se | 12 |
| ask.kb.se | 12 |
| publicera.kb.se | 12 |
| beta.libris.kb.se | 11 |
| isbn.kb.se | 11 |
| kortkataloger.kb.se | 11 |
| libris.kb.se | 11 |
| tidningar.kb.se | 11 |
| urn.kb.se | 11 |
| id.kb.se | 10 |
| openaccess.blogg.kb.se | 10 |
| suecia.kb.se | 10 |
| beta.kb.se | 9 |
| biblioteksdatabasen.libris.kb.se | 9 |
| digitalt.kb.se | 9 |
| kbplay.kb.se | 8 |
| riksdagstryck.kb.se | 8 |
| smdb.kb.se | 7 |
Full technology history →
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Recent changes
- dropped Jetty Jul 2026
- detected Microsoft 365 Feb 2026