What technology does dena.de use?

dena.de is built with PHP, Apache.

Is dena.de secure (HTTPS)?

Yes. dena.de uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Jan 14, 2027.

dena.de is hosted on DUNKEL - SITS Deutschland GmbH, DE.

What is dena.de's SEO score?

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

What is dena.de's overall website score?

dena.de has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.

dena.de has a careers page; check it directly for current openings.

dena.de

Deutsche Energie-Agentur GmbH (dena) | dena

Last scanned Jul 26, 2026, 3:19 PM

Overall score

Excellent

Summary

Effizient, intelligent und nachhaltig – so soll Energie in Zukunft erzeugt und genutzt werden. This website uses PHP hosted on DUNKEL - SITS Deutschland GmbH, DE. SEO is good (85/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

Effizient, intelligent und nachhaltig – so soll Energie in Zukunft erzeugt und genutzt werden. Das erreicht die Deutsche Energie-Agentur mit Partnern und Kunden aus dem öffentlichen und privaten Sektor. Gemeinsam treiben wir die Energiewende und den Klimaschutz voran.

Germany

Hosted on DUNKEL - SITS Deutschland GmbH, DE

Top issues to fix

4 issues found · 1 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
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.

SEO

2 issue(s) found

100

Performance

458 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.

YouTube

Meta tags

Title: Deutsche Energie-Agentur GmbH (dena) | dena
Description: Effizient, intelligent und nachhaltig – so soll Energie in Zukunft erzeugt und genutzt werden. Das erreicht die Deutsche Energie-Agentur mit Partnern und Kunden aus dem öffentlichen und privaten Sektor. Gemeinsam treiben wir die Energiewende und den Klimaschutz voran.
Canonical: https://www.dena.de/
Language: de-DE
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0
Robots meta: index, follow
Manifest: https://www.dena.de/site.webmanifest

Technologies

Detected frameworks, languages, and tools.

PHP Apache

Hosting & CDN

Hosting provider: DUNKEL - SITS Deutschland GmbH, DE
CDN provider: —
IP address: 88.215.207.41
ASN: AS8520 (DUNKEL - SITS Deutschland GmbH, DE)

DNS records

Type	Value
A	88.215.207.41
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Sectigo Limited
Subject: *.dena.de
Valid from: Jun 30, 2026
Valid to: Jan 14, 2027
Days until expiry: 172
SAN domains: *.dena.de, dena.de

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 11 · H3 18

Links

80 internal · 5 external · 0 broken

Images

25 total · 5 missing alt

Scripts / Styles

6 scripts · 2 stylesheets

JS / CSS size

311 KB · 188 KB

Page size

98.6 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 3
sitemap.xml: Found
URLs in sitemap: -1

SEO issues

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

Careers

View careers page

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://dena.de
Final URL: https://www.dena.de/
HTTP status: 200
HTTP version: HTTP/2
Response time: 456 ms
HTML size: 98.6 KB
Redirect chain: https://dena.de → https://www.dena.de/

See something wrong on this report? Request a correction

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