What technology does energie-effizienz-experten.de use?

energie-effizienz-experten.de is built with PHP, Google Analytics, Apache.

Is energie-effizienz-experten.de secure (HTTPS)?

Yes. energie-effizienz-experten.de uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Jan 14, 2027.

Who hosts energie-effizienz-experten.de?

Hosting provider information for energie-effizienz-experten.de is not available yet.

What is energie-effizienz-experten.de's SEO score?

energie-effizienz-experten.de scored 75/100 for SEO in the latest analysis (fair).

What is energie-effizienz-experten.de's overall website score?

energie-effizienz-experten.de has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.

energie-effizienz-experten.de

Energie-Effizienz-Experten (EEE)

Last scanned Aug 24, 2026, 1:22 PM

Overall score

Excellent

Summary

Verzeichnis von Expertinnen und Experten für energieeffizientes Bauen und Sanieren von Gebäuden und Optimieren von Industrieanlagen. This website uses PHP. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.

Verzeichnis von Expertinnen und Experten für energieeffizientes Bauen und Sanieren von Gebäuden und Optimieren von Industrieanlagen.

Top issues to fix

7 issues found

Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
1 cookie without Secure/HttpOnly flags
Security
Set 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
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEO
Add og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

SEO

4 issue(s) found

100

Performance

399 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.

Verzeichnis von Expertinnen und Experten für energieeffizientes Bauen und Sanieren von Gebäuden und Optimieren von Industrieanlagen.

Meta tags

Title: Energie-Effizienz-Experten (EEE)
Description: Verzeichnis von Expertinnen und Experten für energieeffizientes Bauen und Sanieren von Gebäuden und Optimieren von Industrieanlagen.
Canonical: https://www.energie-effizienz-experten.de/
Language: de
Charset: utf-8
Viewport: width=device-width, initial-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

PHP Google Analytics Apache

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: Sectigo Limited
Subject: *.energie-effizienz-experten.de
Valid from: Jun 30, 2026
Valid to: Jan 14, 2027
Days until expiry: 142
SAN domains: *.energie-effizienz-experten.de, energie-effizienz-experten.de

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyEnabled
X-Frame-OptionsMissing
X-Content-Type-OptionsEnabled
Referrer-PolicyEnabled
Permissions-PolicyEnabled

Compression: gzip · 2 cookie(s) observed

Content & assets

Headings

H1 1 · H2 11 · H3 15

Links

62 internal · 16 external · 6 broken

Images

72 total · 0 missing alt

Scripts / Styles

9 scripts · 1 stylesheets

JS / CSS size

496 B · 283 B

Page size

137 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

Scan details

Requested URL: https://energie-effizienz-experten.de
Final URL: https://www.energie-effizienz-experten.de/
HTTP status: 200
HTTP version: HTTP/2
Response time: 397 ms
HTML size: 137 KB
Redirect chain: https://energie-effizienz-experten.de → https://www.energie-effizienz-experten.de/

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