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SGSiteGraph

vliz.be

Vlaams Instituut voor de Zee

Last scanned Aug 6, 2026, 4:00 AM · 8 views

92

Overall score

Excellent

Summary

This website uses Apache. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: Missing meta description.

Top issues to fix

3 issues found · 1 high priority

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • 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.

80

SEO

2 issue(s) found

90

Performance

408 ms

100

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+1 overall since Jul 26, 2026

Overall
92
SEO
80
Security
100
Performance
90
Accessibility
100

Organization

Company details published in this site's own structured data.

Meta tags

Title
Vlaams Instituut voor de Zee
Description
Canonical
https://vliz.be/nl
Language
nl
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest
https://vliz.be/sites/vliz.be/themes/vlizbase/favicon/site.webmanifest

OpenGraph & Twitter Card

OpenGraph

og:title
Homepage
og:description
og:type
Pagina
og:url
https://vliz.be/nl/homepage

Twitter Card

twitter:card
summary_large_image
twitter:title
Homepage
twitter:description
Homepage

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
CDN provider
IP address
193.191.134.34
ASN

DNS records

TypeValue
A
  • 193.191.134.34
AAAA
MX
  • vliz-be.mail.protection.outlook.com
TXT
NS
  • ns2.belnet.be
  • ns3.belnet.be
  • ns.vliz.be
  • ns1.belnet.be
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
vliz.be
Valid from
Jun 22, 2026
Valid to
Sep 20, 2026
Days until expiry
45
SAN domains
vliz.be, www.vliz.be

Security headers

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

Compression: none · 2 cookie(s) observed

Content & assets

Headings

H1 1 · H2 30 · H3 25

Links

124 internal · 23 external · 0 broken

Images

27 total · 0 missing alt

Scripts / Styles

16 scripts · 10 stylesheets

JS / CSS size

388 KB · 418 KB

Page size

110 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
41
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Missing meta description
  • No structured data (JSON-LD) found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://vliz.be
Final URL
https://vliz.be/nl
HTTP status
200
HTTP version
HTTP/2
Response time
406 ms
HTML size
110 KB
Redirect chain
https://vliz.be → https://vliz.be/nl

See something wrong on this report? Request a correction

Frequently asked questions

What technology does vliz.be use?
vliz.be is built with Apache.
Is vliz.be secure (HTTPS)?
Yes. vliz.be uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 20, 2026.
Who hosts vliz.be?
Hosting provider information for vliz.be is not available yet.
What is vliz.be's SEO score?
vliz.be scored 80/100 for SEO in the latest analysis (great).
What is vliz.be's overall website score?
vliz.be has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
Has vliz.be's score changed over time?
vliz.be's overall score has improved by 1 point (from 91 to 92) since Jul 26, 2026.