dipf.de website report
Startseite — DIPF | Leibniz-Institut für Bildungsforschung und Bildungsinformation
Last scanned
Overall score
Great
About dipf.de
dipf.de is a website. It is also on Instagram.
Score profile
Top issues to fix
11 issues found · 3 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
+5 more issues — details in the sections below.
How it compares
dipf.de scores higher overall than 40% of the 163,243 sites we have scanned.
vs. All scanned sites
163,243 sitesThe dot is this site; the tick is the typical (median) score for the group. The number on the right is the percentile: the share of the group this site scores above.
Technology stack
dipf.de is built with jQuery and Nginx.
Hosting & DNS
- IP address
- —
- ASN
- —
- IPv6
- Not supported
- HTTP
- HTTP/2
Show DNS record values
TXT record contents are not republished; only their count is shown.
Security
dipf.de uses TLS 1.3 with a certificate valid for 89 more days and sets 1 of 6 recommended security headers.
Security headers1 of 6 set
- HSTSForces HTTPS
- CSPBlocks injected scripts
- X-Frame-OptionsStops clickjacking
- X-Content-TypeStops MIME sniffing
- Referrer-PolicyLimits URL leakage
- Permissions-PolicyRestricts browser features
TLS certificate
- Names covered
- 1
- Cookies set
- 0
Email security
dipf.de scores D for email security, with no SPF record and DMARC policy “reject”.
- SPFNot set
No SPF record: anyone can claim to send mail from this domain.
- DMARCGood
Forged mail is rejected.
- MTA-STSNot set
Not published; mail to this domain can be downgraded to plaintext.
- BIMINot set
Not published (optional).
Performance & carbon
dipf.de scores 100/100 for performance, with an estimated load time of 0.9 s. A visit emits an estimated 0.17 g of CO2 (grade A).
Page weight
- HTML 44.2 KB
- JavaScript 388 KB
- CSS 35.4 KB
- Est. load
- 870 ms
- Response
- 870 ms
- Scripts / CSS
- 15 / 7
Carbon per visitA
0.17 g CO2 per uncached view
Estimate from the Sustainable Web Design model. HTML, JavaScript and CSS only; images, video and fonts are not measured. Treat it as a lower bound for comparing pages, not an audit.
SEO & accessibility
dipf.de scores 55/100 for SEO and 100/100 for accessibility, with 7 SEO issues to fix.
Heading structure
4 H1s; one is the convention.
Image alt text
31 images · 0 without alt text · 1 lazy-loaded
Links
- Internal 46
- External 4
- Broken 14
SEO issues7
- Title longer than 60 characters
- Missing meta description
- Multiple H1 headings found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues0
No accessibility issues detected.
Technical details
Page metadata, social tags, crawl files and scan information.
Meta tags
- Title
- Startseite — DIPF | Leibniz-Institut für Bildungsforschung und Bildungsinformation
- Description
- Canonical
- https://www.dipf.de/de
- Language
- de
- Robots meta
Crawl files
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
Structured data
No JSON-LD types declared.
- Microdata items
- 0
- RDFa items
- 0
Scan
- Final URL
- https://www.dipf.de/de
- HTTP status
- 200
- Redirects
- https://dipf.de → https://www.dipf.de/ → https://www.dipf.de/de
- Scanned
- Aug 24, 2026, 1:23 PM
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Frequently asked questions about dipf.de
- What is dipf.de?
- dipf.de is a website. It is also on Instagram.
- What technology does dipf.de use?
- dipf.de is built with jQuery and Nginx.
- Is dipf.de secure?
- dipf.de uses TLS 1.3 with a certificate valid for 89 more days and sets 1 of 6 recommended security headers.
- Is dipf.de protected against email spoofing?
- dipf.de scores D for email security, with no SPF record and DMARC policy “reject”.
- How does dipf.de compare with similar sites?
- dipf.de scores higher overall than 40% of the 163,243 sites we have scanned.
- What is dipf.de's overall score?
- dipf.de has an overall SiteGraph score of 80/100, combining SEO (55), performance (100), security (75) and accessibility (100).
Open Graph & Twitter