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kb.se

Kungliga biblioteket – Sveriges nationalbibliotek

Last scanned Jul 25, 2026, 8:25 PM

87

Overall score

Great

Summary

Kungliga biblioteket (KB) är Sveriges nationalbibliotek. This website uses Apache hosted on SUNET - Vetenskapsradet / SUNET, EU. SEO is good (85/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance good (80/100). Top issue: Multiple H1 headings found.

Kungliga biblioteket (KB) är Sveriges nationalbibliotek. Vi samlar in och bevarar nästan allt som publiceras i Sverige.

Sweden
Hosted on SUNET - Vetenskapsradet / SUNET, EU

Top issues to fix

5 issues found · 1 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • 1 broken link on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

85

SEO

2 issue(s) found

80

Performance

1.40 s

85

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Kungliga biblioteket (KB) är Sveriges nationalbibliotek. Vi samlar in och bevarar nästan allt som publiceras i Sverige.

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Meta tags

Title
Kungliga biblioteket – Sveriges nationalbibliotek
Description
Kungliga biblioteket (KB) är Sveriges nationalbibliotek. Vi samlar in och bevarar nästan allt som publiceras i Sverige.
Canonical
https://www.kb.se
Language
sv
Charset
UTF-8
Viewport
width=device-width, initial-scale=1, minimum-scale=1, shrink-to-fit=no
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Kungliga biblioteket – Sveriges nationalbibliotek
og:description
Kungliga biblioteket (KB) är Sveriges nationalbibliotek. Vi samlar in och bevarar nästan allt som publiceras i Sverige.
og:type
website
og:url
—

Twitter Card

twitter:card
—
twitter:title
Kungliga biblioteket – Sveriges nationalbibliotek
twitter:description
Kungliga biblioteket (KB) är Sveriges nationalbibliotek. Vi samlar in och bevarar nästan allt som publiceras i Sverige.

Technologies

Detected frameworks, languages, and tools.

jQueryApache

Hosting & CDN

CDN provider
—
IP address
130.242.45.96
ASN
AS1653 (SUNET - Vetenskapsradet / SUNET, EU)

DNS records

TypeValue
A
  • 130.242.45.96
AAAA
  • 2001:6b0:41:45::96
MX
  • kb-se.mail.protection.outlook.com
TXT—
NS
  • denice.kb.se
  • ns1.kb.se
CAA—
CNAME
  • kb.se
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Hellenic Academic and Research Institutions CA
Subject
kb.se
Valid from
Jul 22, 2026
Valid to
Feb 6, 2027
Days until expiry
195
SAN domains
kb.se, www.kb.se

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyEnabled
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyEnabled
  • Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 2 · H2 13 · H3 12

Links

44 internal · 11 external · 1 broken

Images

18 total · 0 missing alt

Scripts / Styles

100 scripts · 26 stylesheets

JS / CSS size

660 KB · 662 KB

Page size

129 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
15
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Multiple H1 headings found
  • No structured data (JSON-LD) found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://kb.se
Final URL
https://www.kb.se/
HTTP status
200
HTTP version
HTTP/1.1
Response time
1.40 s
HTML size
129 KB
Redirect chain
https://kb.se → https://www.kb.se/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does kb.se use?
kb.se is built with jQuery, Apache.
Is kb.se secure (HTTPS)?
Yes. kb.se uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 6, 2027.
Who hosts kb.se?
kb.se is hosted on SUNET - Vetenskapsradet / SUNET, EU.
What is kb.se's SEO score?
kb.se scored 85/100 for SEO in the latest analysis (great).
What is kb.se's overall website score?
kb.se has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.