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Domain report

gren.com

gren.com ranks in the top 0.48% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 4 distinct hosts observed under it.

Explore gren.com in the Web Graph

Connectivity

#639,485harmonic-centrality rank
Top percentile
0.48%
Hosts observed
4

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://gren.com/ answered with HTTP 200.

DNS records

A
  • 172.67.222.191
  • 104.21.94.114
AAAA
  • 2606:4700:3033::ac43:debf
  • 2606:4700:3037::6815:5e72
MX
  • 0 gren-com.mail.protection.outlook.com.
NS
  • archer.ns.cloudflare.com.
  • poppy.ns.cloudflare.com.

Live preview

Screenshot of gren.com

This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.

Since gren.com can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.

Domain registration (WHOIS / RDAP)

RDAP lookup failed (HTTP 429).

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
s-maxage=31536000, max-age=60
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=31536000; includeSubDomains
X-Frame-Options
SAMEORIGIN
X-Content-Type-Options
nosniff
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://gren.com/HTTP 308

    → https://gren.com/

  2. 2.https://gren.com/HTTP 200

Meta tags

Title
Gren Group - Northern European energy company
Description
Gren Group - Northern European energy company which puts positively different energy into action.
Canonical
https://gren.com/
Robots
index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Generator
Not set
Open Graph title
Northern European energy company – Gren Group
Open Graph description
Gren Group - Northern European energy company which puts positively different energy into action.
Open Graph image
https://grenweb01.blob.core.windows.net/gren-web-prod/2026/05/CHP_Parnu_Gren_2-scaled.jpg
Open Graph type
website
Twitter card
summary_large_image
Twitter title
Not set
Twitter image
Not set

robots.txt

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

Sitemaps declared:

  • https://gren.com/sitemap_index.xml
  • https://gren.com/lv/sitemap_index.xml
  • https://gren.com/lt/sitemap_index.xml
  • https://gren.com/ee/sitemap_index.xml
  • https://gren.com/uk/sitemap_index.xml

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

  • WordPresscms

    Found "wp-includes/" in the page's HTML

Related domains

Similar connectivity

Domains ranked just above and below it in the same snapshot.