What technology does 4rs.nl use?

We did not detect any specific technologies for 4rs.nl in the latest scan.

Is 4rs.nl secure (HTTPS)?

Yes. 4rs.nl uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 14, 2026.

4rs.nl is hosted on Fastly, behind Fastly CDN.

What is 4rs.nl's SEO score?

4rs.nl scored 80/100 for SEO in the latest analysis (great).

What is 4rs.nl's overall website score?

4rs.nl has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.

4rs.nl

~Awiteb

Last scanned Aug 24, 2026, 1:22 PM

Overall score

Great

Summary

The place where I express what's on my mind, and try to offer something useful. This website is hosted on Fastly. SEO is good (80/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.

The place where I express what's on my mind, and try to offer something useful

United States

Hosted on Fastly

Top issues to fix

7 issues found · 2 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 X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.
Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.

+1 more issue — details in the sections below.

SEO

3 issue(s) found

100

Performance

200 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.

The place where I express what's on my mind, and try to offer something useful

Contact

Email, phone, and address published on this site's own pages.

Email: a@4rs.nl

Meta tags

Title: ~Awiteb
Description: The place where I express what's on my mind, and try to offer something useful
Canonical
Language: en
Charset: UTF-8
Viewport: width=device-width,initial-scale=1.0
Robots meta: index, nofollow
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: Fastly
CDN provider: Fastly
IP address: 185.199.110.153
ASN: AS54113 (FASTLY - Fastly, Inc., US)

DNS records

Type	Value
A	185.199.110.153 185.199.109.153 185.199.111.153 185.199.108.153
AAAA	2606:50c0:8001::153 2606:50c0:8002::153 2606:50c0:8000::153 2606:50c0:8003::153
MX	mailsec.protonmail.ch mail.protonmail.ch
TXT	v=spf1 include:_spf.protonmail.ch ~all protonmail-verification=0a6d21151fbead8e28e6912b2b3509f67027f059
NS	ara.ns.cloudflare.com thaddeus.ns.cloudflare.com
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: 4rs.nl
Valid from: Aug 16, 2026
Valid to: Nov 14, 2026
Days until expiry: 82
SAN domains: 4rs.nl

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 2 · H2 4 · H3 0

Links

18 internal · 7 external · 0 broken

Images

7 total · 0 missing alt

Scripts / Styles

1 scripts · 4 stylesheets

JS / CSS size

417 B · 72.7 KB

Page size

7.1 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 0
sitemap.xml: Found
URLs in sitemap: 36

SEO issues

Missing canonical link
Multiple H1 headings found
No structured data (JSON-LD) found

Scan details

Requested URL: https://4rs.nl
Final URL: https://4rs.nl
HTTP status: 200
HTTP version: HTTP/2
Response time: 200 ms
HTML size: 7.1 KB
Redirect chain: https://4rs.nl

See something wrong on this report? Request a correction

Same hosting provider

saltoks.com

Salto KS | Salto

100

google-analyticsdrupalgatsby

Fastly

fhinck.com

Fhinck — Task Mining + Agentes de IA | AI First

100

nextjsgoogle-analytics

Fastly

litera.com

Litera | Legal Technology Solutions

100

nginxdrupal

Fastly· Fastly

vovici.com

Survey Management Software | Verint

100

wordpressnginxjquery

Fastly· Fastly

gapseat.in

GapSeat | IRCTC Chart Vacancy & Vacant Train Seats

google-analytics

Fastly

bamsec.com

BamSEC

google-analyticscloudflare-analytics

Fastly· Fastly

Frequently asked questions

What technology does 4rs.nl use?: We did not detect any specific technologies for 4rs.nl in the latest scan.
Is 4rs.nl secure (HTTPS)?: Yes. 4rs.nl uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 14, 2026.
Who hosts 4rs.nl?: 4rs.nl is hosted on Fastly, behind Fastly CDN.
What is 4rs.nl's SEO score?: 4rs.nl scored 80/100 for SEO in the latest analysis (great).
What is 4rs.nl's overall website score?: 4rs.nl has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.

Top issues to fix

Organization

Contact

Meta tags

OpenGraph & Twitter Card

Technologies

Hosting & CDN

DNS records

TLS / SSL certificate

Security headers

Content & assets

Robots.txt & Sitemap

SEO issues

Accessibility issues

Scan details

Related websites

Frequently asked questions