oldenburg.de website report
Offizielle Website der Stadt Oldenburg > Stadt Oldenburg
Last scanned
Overall score
Great
About oldenburg.de
oldenburg.de is a website. It describes itself as “Willkommen auf der offiziellen Website der Stadt Oldenburg”.
Score profile
Top issues to fix
8 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+2 more issues — details in the sections below.
How it compares
oldenburg.de scores higher overall than 50% of the 163,243 sites we have scanned.
vs. All scanned sites
163,243 sitesThe dot is this site; the tick is the typical (median) score for the group. The number on the right is the percentile: the share of the group this site scores above.
Technology stack
oldenburg.de is built with jQuery and Nginx.
Hosting & DNS
- IP address
- —
- ASN
- —
- IPv6
- Not supported
- HTTP
- HTTP/2
Show DNS record values
TXT record contents are not republished; only their count is shown.
Security
oldenburg.de uses TLS 1.3 with a certificate valid for 41 more days and sets 1 of 6 recommended security headers.
Security headers1 of 6 set
- HSTSForces HTTPS
- CSPBlocks injected scripts
- X-Frame-OptionsStops clickjacking
- X-Content-TypeStops MIME sniffing
- Referrer-PolicyLimits URL leakage
- Permissions-PolicyRestricts browser features
TLS certificate
- Names covered
- 2
- Cookies set
- 0
Email security
oldenburg.de scores D for email security, with SPF and DMARC policy “none”.
- SPFWeak
Marks unlisted senders as suspicious (~all) but does not reject them.
- DMARCWeak
Monitoring only: forged mail is still delivered.
- MTA-STSNot set
Not published; mail to this domain can be downgraded to plaintext.
- BIMINot set
Not published (optional).
Performance & carbon
oldenburg.de scores 80/100 for performance, with an estimated load time of 0.5 s. A visit emits an estimated 0.72 g of CO2 (grade E).
Page weight
- HTML 1.9 MB
- JavaScript 2.1 KB
- CSS 18.8 KB
- Est. load
- 509 ms
- Response
- 470 ms
- Scripts / CSS
- 26 / 24
Carbon per visitE
0.72 g CO2 per uncached view
Estimate from the Sustainable Web Design model. HTML, JavaScript and CSS only; images, video and fonts are not measured. Treat it as a lower bound for comparing pages, not an audit.
SEO & accessibility
oldenburg.de scores 80/100 for SEO and 100/100 for accessibility, with 4 SEO issues to fix.
Heading structure
One H1: good.
Image alt text
14 images · 0 without alt text · 0 lazy-loaded
Links
- Internal 1493
- External 51
- Broken 1
SEO issues4
- Meta description longer than 160 characters
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues0
No accessibility issues detected.
Technical details
Page metadata, social tags, crawl files and scan information.
Meta tags
- Title
- Offizielle Website der Stadt Oldenburg > Stadt Oldenburg
- Description
- Willkommen auf der offiziellen Website der Stadt Oldenburg. Hier finden Sie aktuelle Informationen, Services der Stadtverwaltung, Veranstaltungen und Angebote rund um das Leben in Oldenburg.
- Canonical
- https://www.oldenburg.de/startseite.html
- Language
- de
- Robots meta
Crawl files
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
Structured data
- Microdata items
- 0
- RDFa items
- 0
Scan
- Final URL
- https://www.oldenburg.de/startseite.html
- HTTP status
- 200
- Redirects
- https://oldenburg.de → https://www.oldenburg.de/ → https://www.oldenburg.de/startseite.html
- Scanned
- Aug 24, 2026, 1:23 PM
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Frequently asked questions about oldenburg.de
- What is oldenburg.de?
- oldenburg.de is a website. It describes itself as “Willkommen auf der offiziellen Website der Stadt Oldenburg”.
- What technology does oldenburg.de use?
- oldenburg.de is built with jQuery and Nginx.
- Is oldenburg.de secure?
- oldenburg.de uses TLS 1.3 with a certificate valid for 41 more days and sets 1 of 6 recommended security headers.
- Is oldenburg.de protected against email spoofing?
- oldenburg.de scores D for email security, with SPF and DMARC policy “none”.
- How does oldenburg.de compare with similar sites?
- oldenburg.de scores higher overall than 50% of the 163,243 sites we have scanned.
- What is oldenburg.de's overall score?
- oldenburg.de has an overall SiteGraph score of 82/100, combining SEO (80), performance (80), security (70) and accessibility (100).
Open Graph & Twitter