1a-infosysteme.de
1A Infosysteme GmbH Hannover – Softwareentwicklung & IT-Beratung
Last scanned Jul 26, 2026, 12:49 PM
Overall score
Excellent
Summary
1A Infosysteme GmbH aus Hannover – Ihr Spezialist für individuelle Softwareentwicklung, ColdFusion-Programmierung, Datenbankentwicklung und Portalentwicklung seit über 20 Jahren. This website uses Apache. SEO is good (85/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
1A Infosysteme GmbH
1A Infosysteme GmbH aus Hannover – Ihr Spezialist für individuelle Softwareentwicklung, ColdFusion-Programmierung, Datenbankentwicklung und Portalentwicklung seit über 20 Jahren.
- Lavesstr. 80, Hannover, 30159, DE
Top issues to fix
6 issues found · 1 high priority
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.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
19 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
3 issue(s) found
Performance
258 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
1A Infosysteme GmbH
1A Infosysteme GmbH aus Hannover – Ihr Spezialist für individuelle Softwareentwicklung, ColdFusion-Programmierung, Datenbankentwicklung und Portalentwicklung seit über 20 Jahren.
- Founded
- Jan 1, 2003
Contact
Email, phone, and address published on this site's own pages.
- Phone
- +4905114508990
- Address
- Lavesstr. 80, Hannover, 30159, DE
Meta tags
- Title
- 1A Infosysteme GmbH Hannover – Softwareentwicklung & IT-Beratung
- Description
- 1A Infosysteme GmbH Hannover – Softwareentwicklung, ColdFusion, Datenbankentwicklung & Portalentwicklung. Über 20 Jahre Erfahrung. ☎ 0511 450 899 0
- Canonical
- https://www.1a-infosysteme.de/
- Language
- de
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
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
- Let's Encrypt
- Subject
- www.1a-infosysteme.de
- Valid from
- Jul 21, 2026
- Valid to
- Oct 19, 2026
- Days until expiry
- 82
- SAN domains
- 1a-infosysteme.de, www.1a-infosysteme.de
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 6 · H3 19
Links
18 internal · 1 external · 19 broken
Images
2 total · 0 missing alt
Scripts / Styles
3 scripts · 0 stylesheets
JS / CSS size
1.3 KB · 14.4 KB
Page size
45.2 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://1a-infosysteme.de
- Final URL
- https://www.1a-infosysteme.de/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 258 ms
- HTML size
- 45.2 KB
- Redirect chain
- https://1a-infosysteme.de → https://www.1a-infosysteme.de/
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Frequently asked questions
- What technology does 1a-infosysteme.de use?
- 1a-infosysteme.de is built with Google Analytics, Apache.
- Is 1a-infosysteme.de secure (HTTPS)?
- Yes. 1a-infosysteme.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 19, 2026.
- Who hosts 1a-infosysteme.de?
- Hosting provider information for 1a-infosysteme.de is not available yet.
- What is 1a-infosysteme.de's SEO score?
- 1a-infosysteme.de scored 85/100 for SEO in the latest analysis (great).
- What is 1a-infosysteme.de's overall website score?
- 1a-infosysteme.de has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.
- What company operates 1a-infosysteme.de?
- 1a-infosysteme.de is operated by 1A Infosysteme GmbH. 1A Infosysteme GmbH aus Hannover – Ihr Spezialist für individuelle Softwareentwicklung, ColdFusion-Programmierung, Datenbankentwicklung und Portalentwicklung seit über 20 Jahren.
OpenGraph & Twitter Card
OpenGraph
Twitter Card