What technology does mpg.de use?

mpg.de is built with Ruby on Rails, Apache.

Is mpg.de secure (HTTPS)?

Yes. mpg.de uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Nov 7, 2026.

What is mpg.de's SEO score?

mpg.de scored 85/100 for SEO in the latest analysis (great).

What is mpg.de's overall website score?

mpg.de has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.

mpg.de

Startseite | Max-Planck-Gesellschaft

Last scanned Jul 18, 2026, 8:49 PM

Overall score

Great

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.
1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.
1 broken link on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

Summary

Die Max-Planck-Gesellschaft ist Deutschlands führende außeruniversitäre Grundlagenforschung Forschungsorganisation - Forschung an 85 Instituten. This website uses Apache hosted on GOENET - Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH, Goettingen, DE. SEO is good (85/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance fair (70/100). Top issue: No structured data (JSON-LD) found.

SEO

2 issue(s) found

Performance

2.25 s

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.

YouTube Facebook Instagram YouTube

Contact

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

Email: bildredaktion@gv.mpg.de career@gv.mpg.de presse@gv.mpg.de webmaster@mpg.de

Source: https://www.mpg.de/contact

Meta tags

Title: Startseite | Max-Planck-Gesellschaft
Description: Die Max-Planck-Gesellschaft ist Deutschlands führende außeruniversitäre Grundlagenforschung Forschungsorganisation - Forschung an 85 Instituten.
Canonical: https://www.mpg.de/de
Language: de
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0
Robots meta
Manifest: https://www.mpg.de/assets/mpg/manifest-d29b8b680f505917a87a7b94cddd5fefd4b53ea1a91e504e0983b758a316d0a5.json

Technologies

Detected frameworks, languages, and tools.

Ruby on Rails Apache

Hosting & CDN

Hosting provider: GOENET - Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH, Goettingen, DE
CDN provider: —
IP address: 134.76.31.198
ASN: AS207592 (GOENET - Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH, Goettingen, DE)

DNS records

Type	Value
A	134.76.31.198
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Hellenic Academic and Research Institutions CA
Subject: www.mpg.de
Valid from: Nov 7, 2025
Valid to: Nov 7, 2026
Days until expiry: 111
SAN domains: www.mpg.de, mpg.de

Security headers

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

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 13 · H3 33

Links

189 internal · 15 external · 1 broken

Images

52 total · 0 missing alt

Scripts / Styles

24 scripts · 2 stylesheets

JS / CSS size

926 KB · 677 KB

Page size

436 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

No structured data (JSON-LD) found
sitemap.xml not found

Scan details

Requested URL: https://mpg.de
Final URL: https://www.mpg.de/de
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 2.24 s
HTML size: 436 KB
Redirect chain: https://mpg.de → https://www.mpg.de/ → https://www.mpg.de/de

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Frequently asked questions

What technology does mpg.de use?: mpg.de is built with Ruby on Rails, Apache.
Is mpg.de secure (HTTPS)?: Yes. mpg.de uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Nov 7, 2026.
Who hosts mpg.de?: mpg.de is hosted on GOENET - Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH, Goettingen, DE.
What is mpg.de's SEO score?: mpg.de scored 85/100 for SEO in the latest analysis (great).
What is mpg.de's overall website score?: mpg.de has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.