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SGSiteGraph

schlittermann.de

Linux expertise since 1997 < Schlittermann

Last scanned Aug 5, 2026, 8:00 AM · 13 views

90

Overall score

Excellent

Summary

Schlittermann internet & unix support, Dresden: Linux administration, Exim mail systems, hosting, Nextcloud, custom software and training since 1997. This website uses Apache. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing OpenGraph tags.

Schlittermann internet & unix support

Schlittermann internet & unix support, Dresden: Linux administration, Exim mail systems, hosting, Nextcloud, custom software and training since 1997.

Tannenstraße 2, Dresden, 01099, DE

Top issues to fix

6 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.

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

  • 1 broken link on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

95

SEO

1 issue(s) found

100

Performance

120 ms

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+2 overall since Jul 27, 2026

Overall
90
SEO
95
Security
65
Performance
100
Accessibility
100

Organization

Company details published in this site's own structured data.

Schlittermann internet & unix support

Schlittermann internet & unix support, Dresden: Linux administration, Exim mail systems, hosting, Nextcloud, custom software and training since 1997.

Founded
Jan 1, 1997

Contact

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

Address
Tannenstraße 2, Dresden, 01099, DE

Meta tags

Title
Linux expertise since 1997 < Schlittermann
Description
Schlittermann internet & unix support, Dresden: Linux administration, Exim mail systems, hosting, Nextcloud, custom software and training since 1997.
Canonical
https://schlittermann.de/en/index.html
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
index, follow
Manifest

OpenGraph & Twitter Card

OpenGraph

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

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
CDN provider
IP address
188.68.44.206
ASN
AS197540 ()

DNS records

TypeValue
A
  • 188.68.44.206
AAAA
MX
  • hh.schlittermann.de
  • mx10.schlittermann.de
TXT
  • v=spf1 include:_spf.schlittermann.de -all
  • anthropic-domain-verification-ap56x5=FzeXhvUmUsO7S5CvBM2V2aapJ
  • google-site-verification=cwZz3T4tfiI1-RDPTn0oZv68Y6LlX0rC18IxjT69BPE
  • keybase-site-verification=BynStH7sq0gtWClcB6O5vFf5UKfrNlJ4fYF_c9mM9Tw
NS
  • rn.schlittermann.de
  • pu.schlittermann.de
  • hh.schlittermann.de
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
www.schlittermann.de
Valid from
Jul 5, 2026
Valid to
Oct 3, 2026
Days until expiry
58
SAN domains
schlittermann.de, www.schlittermann.de

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 1 · H3 0

Links

15 internal · 3 external · 1 broken

Images

4 total · 0 missing alt

Scripts / Styles

4 scripts · 2 stylesheets

JS / CSS size

14.4 KB · 12.8 KB

Page size

13.2 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
1
sitemap.xml
Found
URLs in sitemap
27

SEO issues

  • Missing OpenGraph tags

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://schlittermann.de
Final URL
https://schlittermann.de
HTTP status
200
HTTP version
HTTP/1.1
Response time
120 ms
HTML size
13.2 KB
Redirect chain
https://schlittermann.de

See something wrong on this report? Request a correction

Frequently asked questions

What technology does schlittermann.de use?
schlittermann.de is built with Apache.
Is schlittermann.de secure (HTTPS)?
Yes. schlittermann.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 3, 2026.
Who hosts schlittermann.de?
Hosting provider information for schlittermann.de is not available yet.
What is schlittermann.de's SEO score?
schlittermann.de scored 95/100 for SEO in the latest analysis (excellent).
What is schlittermann.de's overall website score?
schlittermann.de has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
What company operates schlittermann.de?
schlittermann.de is operated by Schlittermann internet & unix support. Schlittermann internet & unix support, Dresden: Linux administration, Exim mail systems, hosting, Nextcloud, custom software and training since 1997.
Has schlittermann.de's score changed over time?
schlittermann.de's overall score has improved by 2 points (from 88 to 90) since Jul 27, 2026.