What technology does netcologne.de use?

netcologne.de is built with Next.js, Apache.

Is netcologne.de secure (HTTPS)?

Yes. netcologne.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 10, 2026.

What is netcologne.de's SEO score?

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

What is netcologne.de's overall website score?

netcologne.de has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.

netcologne.de

Internet, Glasfaser & DSL für dein Zuhause | NetCologne

Last scanned Jul 21, 2026, 12:33 PM · 1 view

Overall score

Great

Top issues to fix

7 issues found · 2 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

+1 more issue — details in the sections below.

Summary

Dein Internetanbieter aus Köln ✓ Glasfaser & DSL für jedes Veedel ✓ starke Tarife, regionaler Service & stabiles Netz ✓ Internet jetzt prüfen & Tarif finden!. This website uses Next.js 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 good (75/100). Top issue: Meta description longer than 160 characters.

SEO

2 issue(s) found

Performance

505 ms

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.

Facebook YouTube Instagram LinkedIn

Contact

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

Email: info@netcologne.de
Phone: //02212222800

Meta tags

Title: Internet, Glasfaser & DSL für dein Zuhause | NetCologne
Description: Dein Internetanbieter aus Köln ✓ Glasfaser & DSL für jedes Veedel ✓ starke Tarife, regionaler Service & stabiles Netz ✓ Internet jetzt prüfen & Tarif finden!
Canonical: https://www.netcologne.de/privatkunden/
Language: de
Charset: utf-8
Viewport: width=device-width, initial-scale=1
Robots meta: INDEX,FOLLOW
Manifest: https://www.netcologne.de/icons/site.webmanifest

Technologies

Detected frameworks, languages, and tools.

Next.js Apache

Hosting & CDN

Hosting provider: NETCOLOGNE - NetCologne Gesellschaft fur Telekommunikation mbH, DE
CDN provider: —
IP address: 213.168.87.27
ASN: AS8422 (NETCOLOGNE - NetCologne Gesellschaft fur Telekommunikation mbH, DE)

DNS records

Type	Value
A	213.168.87.27
AAAA	2001:4dd0:100:1f00:80:0:12:5
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: netcologne.de
Valid from: Jul 12, 2026
Valid to: Oct 10, 2026
Days until expiry: 80
SAN domains: net.cologne, netcologne.de, netcologne.koeln, www.net.cologne, www.netcologne.de, www.netcologne.koeln

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 9 · H3 0

Links

36 internal · 14 external · 1 broken

Images

16 total · 1 missing alt

Scripts / Styles

27 scripts · 5 stylesheets

JS / CSS size

2.0 MB · 865 KB

Page size

232 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 46
sitemap.xml: Found
URLs in sitemap: -1

SEO issues

Meta description longer than 160 characters
No structured data (JSON-LD) found

Scan details

Requested URL: https://netcologne.de
Final URL: https://www.netcologne.de/privatkunden/
HTTP status: 200
HTTP version: HTTP/2
Response time: 501 ms
HTML size: 232 KB
Redirect chain: https://netcologne.de → https://www.netcologne.de/privatkunden/

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Frequently asked questions

What technology does netcologne.de use?: netcologne.de is built with Next.js, Apache.
Is netcologne.de secure (HTTPS)?: Yes. netcologne.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 10, 2026.
Who hosts netcologne.de?: netcologne.de is hosted on NETCOLOGNE - NetCologne Gesellschaft fur Telekommunikation mbH, DE.
What is netcologne.de's SEO score?: netcologne.de scored 85/100 for SEO in the latest analysis (great).
What is netcologne.de's overall website score?: netcologne.de has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.

Top issues to fix

Organization

Contact

Meta tags

OpenGraph & Twitter Card

Technologies

Hosting & CDN

DNS records

TLS / SSL certificate

Security headers

Content & assets

Robots.txt & Sitemap

SEO issues

Accessibility issues

Scan details

Related websites

Frequently asked questions