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SGSiteGraph

mardi4nfdi.de

Mission - MaRDI

Last scanned Aug 24, 2026, 1:21 PM · 1 view

71

Overall score

Fair

Summary

This website uses Apache. SEO is fair (55/100) and accessibility is fair (60/100). Security scores good (80/100) and performance excellent (90/100). Top issue: Missing meta description.

Top issues to fix

10 issues found · 4 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing meta description

    SEO

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

  • 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.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • No structured data (JSON-LD) found

    SEO

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

+4 more issues — details in the sections below.

55

SEO

6 issue(s) found

90

Performance

1.79 s

80

Security

HTTPS & header checks

60

Accessibility

2 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.

X (Twitter)

Meta tags

Title
Mission - MaRDI
Description
Canonical
https://www.mardi4nfdi.de/about/mission
Language
en-US
Charset
utf-8
Viewport
width=device-width, initial-scale=1, minimum-scale=1
Robots meta
index,follow
Manifest

OpenGraph & Twitter Card

OpenGraph

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

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

jQueryApache

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Hellenic Academic and Research Institutions CA
Subject
www.mardi4nfdi.de
Valid from
Jul 22, 2026
Valid to
Feb 6, 2027
Days until expiry
166
SAN domains
www.mardi4nfdi.de, mardi4nfdi.de, mardi-de.org, www.mardi-de.org

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 1 · H3 0

Links

45 internal · 4 external · 18 broken

Images

25 total · 13 missing alt

Scripts / Styles

28 scripts · 5 stylesheets

JS / CSS size

13.7 KB · 0 B

Page size

70.8 KB

Robots.txt & Sitemap

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

SEO issues

  • Missing meta description
  • No H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text
  • No H1 heading found

Scan details

Requested URL
https://mardi4nfdi.de
Final URL
https://www.mardi4nfdi.de/about/mission
HTTP status
200
HTTP version
HTTP/1.1
Response time
1.79 s
HTML size
70.8 KB
Redirect chain
https://mardi4nfdi.de → https://www.mardi4nfdi.de/about/mission

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does mardi4nfdi.de use?
mardi4nfdi.de is built with jQuery, Apache.
Is mardi4nfdi.de secure (HTTPS)?
Yes. mardi4nfdi.de uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 6, 2027.
Who hosts mardi4nfdi.de?
Hosting provider information for mardi4nfdi.de is not available yet.
What is mardi4nfdi.de's SEO score?
mardi4nfdi.de scored 55/100 for SEO in the latest analysis (fair).
What is mardi4nfdi.de's overall website score?
mardi4nfdi.de has an overall SiteGraph score of 71/100, combining SEO, performance, security, and accessibility.