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SGSiteGraph

opentopomap.org

OpenTopoMap - Topographische Karten aus OpenStreetMap

Last scanned Jul 27, 2026, 8:44 AM · 1 view

71

Overall score

Fair

Summary

direkt zur Karte... This website uses Apache hosted on CONTABO - Contabo GmbH, DE. SEO is fair (65/100) and accessibility is fair (50/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.

direkt zur Karte...

Germany
Hosted on CONTABO - Contabo GmbH, DE

Top issues to fix

11 issues found · 4 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.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • 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.

+5 more issues — details in the sections below.

65

SEO

5 issue(s) found

100

Performance

124 ms

65

Security

HTTPS & header checks

50

Accessibility

3 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.

direkt zur Karte...

Meta tags

Title
OpenTopoMap - Topographische Karten aus OpenStreetMap
Description
direkt zur Karte...
Canonical
Language
Charset
utf-8
Viewport
initial-scale=1.0,user-scalable=no
Robots meta
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.

Apache

Hosting & CDN

CDN provider
—
IP address
86.48.3.95
ASN
AS51167 (CONTABO - Contabo GmbH, DE)

DNS records

TypeValue
A
  • 86.48.3.95
AAAA—
MX
  • mx01.udag.de
  • mx00.udag.de
TXT—
NS
  • ns.udag.de
  • ns.udag.org
  • ns.udag.net
CAA
  • 0 issue "letsencrypt.org"
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
opentopomap.org
Valid from
Jul 8, 2026
Valid to
Oct 6, 2026
Days until expiry
70
SAN domains
backup.opentopomap.org, opentopomap.org, www.opentopomap.org

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 0 · H2 0 · H3 0

Links

5 internal · 5 external · 0 broken

Images

10 total · 10 missing alt

Scripts / Styles

12 scripts · 6 stylesheets

JS / CSS size

353 KB · 19.6 KB

Page size

11.8 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
16
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text
  • No H1 heading found
  • Missing <html lang> attribute

Scan details

Requested URL
https://opentopomap.org
Final URL
https://opentopomap.org
HTTP status
200
HTTP version
HTTP/1.1
Response time
124 ms
HTML size
11.8 KB
Redirect chain
https://opentopomap.org

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does opentopomap.org use?
opentopomap.org is built with Apache.
Is opentopomap.org secure (HTTPS)?
Yes. opentopomap.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 6, 2026.
Who hosts opentopomap.org?
opentopomap.org is hosted on CONTABO - Contabo GmbH, DE.
What is opentopomap.org's SEO score?
opentopomap.org scored 65/100 for SEO in the latest analysis (fair).
What is opentopomap.org's overall website score?
opentopomap.org has an overall SiteGraph score of 71/100, combining SEO, performance, security, and accessibility.