pei.de
Startseite - Paul-Ehrlich-Institut
Last scanned Jul 26, 2026, 5:47 AM
Overall score
Great
Summary
Startseite. This website uses Apache. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance good (80/100). Top issue: No structured data (JSON-LD) found.
Startseite
Top issues to fix
6 issues found
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
Sluggish estimated load (3.8s)
PerformanceTarget under 3 seconds: enable compression and serve static assets from a CDN.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
4 issue(s) found
Performance
3.77 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Startseite
Meta tags
- Title
- Startseite - Paul-Ehrlich-Institut
- Description
- Startseite
- Canonical
- https://www.pei.de/DE/home/home-node.html
- Language
- de
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0, maximum-scale=1.5, user-scalable=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- D-Trust GmbH
- Subject
- www.pei.de
- Valid from
- Apr 4, 2026
- Valid to
- Oct 19, 2026
- Days until expiry
- 82
- SAN domains
- www.pei.de, www.pei.bund.de, pei.de, pei.bund.de
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: none · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 9 · H3 32
Links
127 internal · 4 external · 20 broken
Images
22 total · 0 missing alt
Scripts / Styles
1 scripts · 7 stylesheets
JS / CSS size
0 B · 0 B
Page size
65.5 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://pei.de
- Final URL
- https://www.pei.de/DE/home/home-node.html
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 3.77 s
- HTML size
- 65.5 KB
- Redirect chain
- https://pei.de → https://www.pei.de/ → https://www.pei.de/DE/home/home-node.html
See something wrong on this report? Request a correction
Related websites
Same technology stack
gopay.com
Payment gateway that helps you earn more | GoPay
dgb.de
Deutscher Gewerkschaftsbund | DGB
boschtt.net
Home | Bosch Home Comfort Group
ebi.ac.uk
EMBL-EBI homepage | EMBL-EBI
byside.com
Composable Digital Experience Platform | CoreMedia CMS
hovbi.com
Hovbi Trends — Discover What People Are Searching For
Frequently asked questions
- What technology does pei.de use?
- pei.de is built with Apache.
- Is pei.de secure (HTTPS)?
- Yes. pei.de uses TLS 1.3 with a certificate issued by D-Trust GmbH, valid until Oct 19, 2026.
- Who hosts pei.de?
- Hosting provider information for pei.de is not available yet.
- What is pei.de's SEO score?
- pei.de scored 75/100 for SEO in the latest analysis (fair).
- What is pei.de's overall website score?
- pei.de has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card