What technology does nioz.nl use?

nioz.nl is built with PHP, Drupal, Nginx.

Is nioz.nl secure (HTTPS)?

Yes. nioz.nl uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 13, 2027.

Hosting provider information for nioz.nl is not available yet.

What is nioz.nl's SEO score?

nioz.nl scored 75/100 for SEO in the latest analysis (fair).

What is nioz.nl's overall website score?

nioz.nl has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.

nioz.nl

Sea research from climate to biodiversity | NIOZ - Royal Netherlands Institute for Sea Research

Last scanned Aug 24, 2026, 1:23 PM

Overall score

Fair

Summary

This website uses PHP. SEO is good (75/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance fair (65/100). Top issue: Title longer than 60 characters.

Top issues to fix

5 issues found · 3 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
Title longer than 60 characters
SEO
Shorten the title to under 60 characters so search results don't truncate it.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

SEO

3 issue(s) found

Performance

417 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.

Facebook LinkedIn YouTube

Meta tags

Title: Sea research from climate to biodiversity | NIOZ - Royal Netherlands Institute for Sea Research
Description
Canonical: https://www.nioz.nl/en/sea-research-from-climate-to-biodiversity
Language: en
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

PHP Drupal Nginx

Hosting & CDN

Hosting provider: —
CDN provider: —
IP address: 145.1.115.86
ASN: —

DNS records

Type	Value
A	145.1.115.86
AAAA	2001:610:4a8:115::86
MX	—
TXT	—
NS	—
CAA	—
CNAME	www-6.nioz.nl
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Hellenic Academic and Research Institutions CA
Subject: www-6.nioz.nl
Valid from: Jul 29, 2026
Valid to: Feb 13, 2027
Days until expiry: 171
SAN domains: www-6.nioz.nl, accept.nioz.nl, foleon.nioz.nl, nioz.nl, plausible.nioz.nl, www.nioz.nl, new.nioz.nl, old.nioz.nl

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 9 · H3 7

Links

38 internal · 4 external · 0 broken

Images

36 total · 0 missing alt

Scripts / Styles

11 scripts · 7 stylesheets

JS / CSS size

2.4 MB · 2.1 MB

Page size

663 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 24
sitemap.xml: Found
URLs in sitemap: 712

SEO issues

Title longer than 60 characters
Missing meta description
No structured data (JSON-LD) found

Scan details

Requested URL: https://nioz.nl
Final URL: https://www.nioz.nl/en
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 404 ms
HTML size: 663 KB
Redirect chain: https://nioz.nl → https://www.nioz.nl/ → https://www.nioz.nl/en

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does nioz.nl use?: nioz.nl is built with PHP, Drupal, Nginx.
Is nioz.nl secure (HTTPS)?: Yes. nioz.nl uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 13, 2027.
Who hosts nioz.nl?: Hosting provider information for nioz.nl is not available yet.
What is nioz.nl's SEO score?: nioz.nl scored 75/100 for SEO in the latest analysis (fair).
What is nioz.nl's overall website score?: nioz.nl has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.