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desy.de

Deutsches Elektronen-Synchrotron DESY ·

Last scanned Jul 25, 2026, 8:25 PM · 1 view

91

Overall score

Excellent

Summary

This website uses jQuery hosted on DESY-HAMBURG - Deutsches Elektronen-Synchrotron DESY, DE. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Missing meta description.

Germany
Hosted on DESY-HAMBURG - Deutsches Elektronen-Synchrotron DESY, DE

Top issues to fix

4 issues found · 1 high priority

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • No structured data (JSON-LD) found

    SEO

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

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

70

SEO

4 issue(s) found

100

Performance

843 ms

100

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.

YouTubeInstagram

Contact

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

Meta tags

Title
Deutsches Elektronen-Synchrotron DESY ·
Description
Canonical
Language
de
Charset
utf-8
Viewport
width=device-width,initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

BootstrapjQuery

Hosting & CDN

CDN provider
—
IP address
131.169.5.106
ASN
AS1754 (DESY-HAMBURG - Deutsches Elektronen-Synchrotron DESY, DE)

DNS records

TypeValue
A
  • 131.169.5.106
AAAA—
MX
  • c1721.mx.srv.dfn.de
  • b1721.mx.srv.dfn.de
  • a1721.mx.srv.dfn.de
TXT—
NS
  • dwalin.nikhef.nl
  • way.desy.de
  • dns-2.dfn.de
  • milky.desy.de
  • ext-dns-2.cern.ch
CAA
  • 0 issue "harica.gr"
  • 0 issue "sectigo.com"
  • 0 issue "amazon.com"
  • 0 issue "letsencrypt.org"
  • 0 issue "globalsign.com"
  • 0 issue "pki.dfn.de"
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Hellenic Academic and Research Institutions CA
Subject
www.desy.de
Valid from
Nov 8, 2025
Valid to
Nov 8, 2026
Days until expiry
105
SAN domains
www.desy.de, desy.de

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyEnabled
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyEnabled
  • Permissions-PolicyEnabled

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 4 · H3 10

Links

42 internal · 13 external · 0 broken

Images

16 total · 0 missing alt

Scripts / Styles

10 scripts · 7 stylesheets

JS / CSS size

144 KB · 206 KB

Page size

51.2 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
625

SEO issues

  • Missing meta description
  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags

Accessibility issues

No accessibility issues detected.

Careers

View careers page

This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.

Scan details

Requested URL
https://desy.de
Final URL
https://desy.de
HTTP status
200
HTTP version
HTTP/1.1
Response time
842 ms
HTML size
51.2 KB
Redirect chain
https://desy.de

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does desy.de use?
desy.de is built with Bootstrap, jQuery.
Is desy.de secure (HTTPS)?
Yes. desy.de uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Nov 8, 2026.
Who hosts desy.de?
desy.de is hosted on DESY-HAMBURG - Deutsches Elektronen-Synchrotron DESY, DE.
What is desy.de's SEO score?
desy.de scored 70/100 for SEO in the latest analysis (fair).
What is desy.de's overall website score?
desy.de has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.
Is desy.de hiring?
desy.de has a careers page; check it directly for current openings.