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Domain report

harmdevries.com

harmdevries.com ranks in the top 0.076% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 1 distinct host observed under it.

Explore harmdevries.com in the Web Graph

Connectivity

#101,493harmonic-centrality rank
Top percentile
0.076%
Hosts observed
1

From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means

HTTPS reachability

200HTTP status

https://harmdevries.com/ answered with HTTP 200.

DNS records

A
  • 104.21.38.203
  • 172.67.138.81
AAAA
  • 2606:4700:3033::6815:26cb
  • 2606:4700:3031::ac43:8a51
MX
  • 10 ASPMX.L.google.com.
  • 20 ALT1.ASPMX.L.google.com.
  • 20 ALT2.ASPMX.L.google.com.
  • 30 ASPMX2.GOOGLEMAIL.com.
  • 30 ASPMX3.GOOGLEMAIL.com.
  • 30 ASPMX4.GOOGLEMAIL.com.
  • 30 ASPMX5.GOOGLEMAIL.com.
NS
  • lorna.ns.cloudflare.com.
  • nikon.ns.cloudflare.com.

Live preview

This is a live, sandboxed embed of harmdevries.com — not a copy. What it shows can change any time the site itself does.

Domain registration (WHOIS / RDAP)

Registrar
Key-Systems GmbH
Registered
2009-03-31
Expires
2027-03-31
Last changed
2026-10-08

Nameservers: LORNA.NS.CLOUDFLARE.COM, NIKON.NS.CLOUDFLARE.COM

Status: active

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed (HTTP 429).

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html; charset=UTF-8
Cache-Control
public,max-age=0,must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=31536000; includeSubDomains
X-Frame-Options
Not sent
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=()

What each security header does

Redirect chain

  1. 1.http://harmdevries.com/HTTP 301

    → https://harmdevries.com/

  2. 2.https://harmdevries.com/HTTP 301

    → https://www.harmdevries.com/

  3. 3.https://www.harmdevries.com/HTTP 200

Meta tags

Title
Harm de Vries
Description
A highly-customizable Hugo academic resume theme powered by Wowchemy website builder.
Canonical
https://www.harmdevries.com/
Robots
Not set
Generator
Wowchemy 5.5.0 for Hugo
Open Graph title
Harm de Vries
Open Graph description
A highly-customizable Hugo academic resume theme powered by Wowchemy website builder.
Open Graph image
https://www.harmdevries.com/media/icon_hua2ec155b4296a9c9791d015323e16eb5_11927_512x512_fill_lanczos_center_3.png
Open Graph type
Not set
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
0
Disallow rules (other agents)
31

No Sitemap declared in robots.txt.

Technology detected

Best-effort, based on a small set of well-known signals — this may be incomplete.

  • Cloudflarecdn

    Server: cloudflare

  • Hugoframework

    <meta name="generator"> = "Wowchemy 5.5.0 for Hugo"

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Similar connectivity

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