stadt-koeln.de
Stadt Köln
Last scanned Jul 26, 2026, 5:18 AM · 1 view
Overall score
Great
Summary
Willkommen bei der Stadtverwaltung Köln. This website uses Apache hosted on NETCOLOGNE - NetCologne Gesellschaft fur Telekommunikation mbH, DE. SEO is good (85/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: No structured data (JSON-LD) found.
Willkommen bei der Stadtverwaltung Köln. Hier finden Sie Ihre Ansprechpersonen, Dienstleistungen und Informationen zu aktuellen Themen.
- Germany
- Hosted on NETCOLOGNE - NetCologne Gesellschaft fur Telekommunikation mbH, DE
Top issues to fix
7 issues found · 2 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 X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
1 cookie without Secure/HttpOnly flags
SecuritySet 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
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
+1 more issue — details in the sections below.
SEO
2 issue(s) found
Performance
2.15 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Stadt Köln
- Description
- Willkommen bei der Stadtverwaltung Köln. Hier finden Sie Ihre Ansprechpersonen, Dienstleistungen und Informationen zu aktuellen Themen.
- Canonical
- https://www.stadt-koeln.de/index.html
- Language
- de
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- CDN provider
- —
- IP address
- 87.79.15.140
- ASN
- AS8422 (NETCOLOGNE - NetCologne Gesellschaft fur Telekommunikation mbH, DE)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- www.stadt-koeln.de
- Valid from
- Jun 9, 2026
- Valid to
- Sep 7, 2026
- Days until expiry
- 40
- SAN domains
- stadt-koeln.de, wartung.stadt-koeln.de, www.stadt-koeln.de, www2.stadt-koeln.de
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyEnabled
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 25 · H3 0
Links
239 internal · 13 external · 0 broken
Images
26 total · 0 missing alt
Scripts / Styles
32 scripts · 25 stylesheets
JS / CSS size
852 KB · 214 KB
Page size
91.1 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 5
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No structured data (JSON-LD) found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Careers
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://stadt-koeln.de
- Final URL
- https://www.stadt-koeln.de/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 2.15 s
- HTML size
- 91.1 KB
- Redirect chain
- https://stadt-koeln.de → http://www.stadt-koeln.de/ → https://www.stadt-koeln.de/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does stadt-koeln.de use?
- stadt-koeln.de is built with PHP, jQuery, Apache.
- Is stadt-koeln.de secure (HTTPS)?
- Yes. stadt-koeln.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 7, 2026.
- Who hosts stadt-koeln.de?
- stadt-koeln.de is hosted on NETCOLOGNE - NetCologne Gesellschaft fur Telekommunikation mbH, DE.
- What is stadt-koeln.de's SEO score?
- stadt-koeln.de scored 85/100 for SEO in the latest analysis (great).
- What is stadt-koeln.de's overall website score?
- stadt-koeln.de has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
- Is stadt-koeln.de hiring?
- stadt-koeln.de has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card