vo.lu
Residential - Visual Online
Last scanned Aug 5, 2026, 5:00 AM · 17 views
Overall score
Great
Summary
Whether fibre, hardware, telephony or TV: VO private customer offers always provide the best quality with personal service. This website uses Django. SEO is good (80/100) and accessibility is excellent (90/100). Security scores good (80/100) and performance excellent (100/100). Top issue: No H1 heading found.
Visual Online
Whether fibre, hardware, telephony or TV: VO private customer offers always provide the best quality with personal service.
Top issues to fix
7 issues found · 3 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.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
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.
+1 more issue — details in the sections below.
SEO
3 issue(s) found
Performance
421 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-3 overall since Jul 27, 2026
- Overall
- 87
- SEO
- 80
- Security
- 80
- Performance
- 100
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Visual Online
Whether fibre, hardware, telephony or TV: VO private customer offers always provide the best quality with personal service.
Meta tags
- Title
- Residential - Visual Online
- Description
- Whether fibre, hardware, telephony or TV: VO private customer offers always provide the best quality with personal service.
- Canonical
- http://vo.lu/en/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1
- Robots meta
- Manifest
- https://vo.lu/static/images/icons/site.b9aa277fcfc3.webmanifest
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
- ZeroSSL GmbH
- Subject
- vo.lu
- Valid from
- Jun 24, 2026
- Valid to
- Sep 22, 2026
- Days until expiry
- 48
- SAN domains
- vo.lu
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 0 · H2 9 · H3 46
Links
9 internal · 56 external · 1 broken
Images
13 total · 0 missing alt
Scripts / Styles
8 scripts · 1 stylesheets
JS / CSS size
450 B · 366 B
Page size
104 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://vo.lu
- Final URL
- https://vo.lu/en/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 419 ms
- HTML size
- 104 KB
- Redirect chain
- https://vo.lu → https://vo.lu/en/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does vo.lu use?
- vo.lu is built with Django.
- Is vo.lu secure (HTTPS)?
- Yes. vo.lu uses TLS 1.3 with a certificate issued by ZeroSSL GmbH, valid until Sep 22, 2026.
- Who hosts vo.lu?
- Hosting provider information for vo.lu is not available yet.
- What is vo.lu's SEO score?
- vo.lu scored 80/100 for SEO in the latest analysis (great).
- What is vo.lu's overall website score?
- vo.lu has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
- What company operates vo.lu?
- vo.lu is operated by Visual Online. Whether fibre, hardware, telephony or TV: VO private customer offers always provide the best quality with personal service.
- Has vo.lu's score changed over time?
- vo.lu's overall score has declined by 3 points (from 90 to 87) since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card