What technology does lex.dk use?

lex.dk is built with Ruby on Rails, Nginx.

Is lex.dk secure (HTTPS)?

Yes. lex.dk uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 7, 2026.

Hosting provider information for lex.dk is not available yet.

What is lex.dk's SEO score?

lex.dk scored 90/100 for SEO in the latest analysis (excellent).

What is lex.dk's overall website score?

lex.dk has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.

lex.dk

Lex er Danmarks nationalleksikon - Faktabaseret viden

Last scanned Jul 26, 2026, 11:49 AM

Overall score

Great

Summary

På Lex finder du opslagsværkerne Den Store Danske,Trap Danmark. This website uses Nginx behind Fastly CDN. SEO is excellent (90/100) and accessibility is excellent (90/100). Security scores good (80/100) and performance excellent (90/100). Top issue: No H1 heading found.

På Lex finder du opslagsværkerne Den Store Danske,Trap Danmark. 250.000 faktabaserede artikler skrevet af forskere på dansk. Besøg Lex her

Top issues to fix

3 issues found · 3 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEO
Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

SEO

1 issue(s) found

Performance

1.51 s

Security

HTTPS & header checks

Accessibility

1 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.

På Lex finder du opslagsværkerne Den Store Danske,Trap Danmark. 250.000 faktabaserede artikler skrevet af forskere på dansk. Besøg Lex her

Contact

Email, phone, and address published on this site's own pages.

Email: info@lex.dk

Meta tags

Title: Lex er Danmarks nationalleksikon - Faktabaseret viden
Description: På Lex finder du opslagsværkerne Den Store Danske,Trap Danmark. 250.000 faktabaserede artikler skrevet af forskere på dansk. Besøg Lex her
Canonical: https://lex.dk/
Language: da
Charset: utf-8
Viewport: width=device-width, initial-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Ruby on Rails Nginx

Hosting & CDN

Hosting provider: —
CDN provider: Fastly
IP address: 34.144.234.245
ASN: —

DNS records

Type	Value
A	34.144.234.245
AAAA	—
MX	alt3.aspmx.l.google.com aspmx.l.google.com alt4.aspmx.l.google.com alt1.aspmx.l.google.com alt2.aspmx.l.google.com
TXT	facebook-domain-verification=icphoxnz0icnwes1nq1iyuel513hyz google-site-verification=5tzEo6S6PawrEg1c99zQZjsa3lk6n9nmHPSrG3BLOvc google-site-verification=x0czGAqpIjKa3ZEywCQ5n7VTWadJVhHYN6W2MQaBusc
NS	ns-cloud-d1.googledomains.com ns-cloud-d2.googledomains.com ns-cloud-d4.googledomains.com ns-cloud-d3.googledomains.com
CAA	0 issue "pki.googl" 0 issue "letsencrypt.org" 0 issue "digicert.com"
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: lex.dk
Valid from: Jun 9, 2026
Valid to: Sep 7, 2026
Days until expiry: 40
SAN domains: *.lex.dk, lex.dk

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 17 · H3 30

Links

110 internal · 28 external · 0 broken

Images

32 total · 0 missing alt

Scripts / Styles

7 scripts · 2 stylesheets

JS / CSS size

25.9 KB · 130 KB

Page size

54.9 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 17
sitemap.xml: Found
URLs in sitemap: -1

SEO issues

No H1 heading found

Scan details

Requested URL: https://lex.dk
Final URL: https://lex.dk
HTTP status: 200
HTTP version: HTTP/2
Response time: 1.51 s
HTML size: 54.9 KB
Redirect chain: https://lex.dk

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does lex.dk use?: lex.dk is built with Ruby on Rails, Nginx.
Is lex.dk secure (HTTPS)?: Yes. lex.dk uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 7, 2026.
Who hosts lex.dk?: Hosting provider information for lex.dk is not available yet.
What is lex.dk's SEO score?: lex.dk scored 90/100 for SEO in the latest analysis (excellent).
What is lex.dk's overall website score?: lex.dk has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.

Top issues to fix

Organization

Contact

Meta tags

OpenGraph & Twitter Card

Technologies

Hosting & CDN

DNS records

TLS / SSL certificate

Security headers

Content & assets

Robots.txt & Sitemap

SEO issues

Accessibility issues

Scan details

Related websites

Frequently asked questions