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Domain report

sumdog.com

sumdog.com ranks in the top 0.082% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 12 distinct hosts observed under it.

Explore sumdog.com in the Web Graph

Connectivity

#109,521harmonic-centrality rank
Top percentile
0.082%
Hosts observed
12

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

DNS records

A
  • 54.220.209.60
  • 176.34.232.30
  • 54.171.38.172
AAAA
No records found.
MX
  • 1 aspmx.l.google.com.
  • 10 aspmx2.googlemail.com.
  • 10 aspmx3.googlemail.com.
  • 5 alt1.aspmx.l.google.com.
  • 5 alt2.aspmx.l.google.com.
NS
  • ns-1268.awsdns-30.org.
  • ns-1947.awsdns-51.co.uk.
  • ns-272.awsdns-34.com.
  • ns-589.awsdns-09.net.

Live preview

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

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=36000, max-age=5
Content-Encoding
Not sent

Security

Content-Security-Policy
upgrade-insecure-requests
Strict-Transport-Security
max-age=31536000
X-Frame-Options
Not sent
X-Content-Type-Options
Not sent
Referrer-Policy
no-referrer-when-downgrade
Permissions-Policy
Not sent

What each security header does

Redirect chain

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

    → https://sumdog.com/

  2. 2.https://sumdog.com/HTTP 302

    → https://learn.sumdog.com/

  3. 3.https://learn.sumdog.com/HTTP 301

    → https://learn.sumdog.com/en-gb

  4. 4.https://learn.sumdog.com/en-gbHTTP 301

    → https://learn.sumdog.com/en-gb/

  5. 5.https://learn.sumdog.com/en-gb/HTTP 200

Meta tags

Title
Engaging Game-Based Learning for Maths and Spelling | Sumdog
Description
Helping children aged 5-14 enjoy learning, build confidence and make progress in maths and spelling. Discover Sumdog.
Canonical
https://learn.sumdog.com/en-gb/
Robots
Not set
Generator
HubSpot
Open Graph title
Engaging Game-Based Learning for Maths and Spelling | Sumdog
Open Graph description
Helping children aged 5-14 enjoy learning, build confidence and make progress in maths and spelling. Discover Sumdog.
Open Graph image
Not set
Open Graph type
Not set
Twitter card
summary
Twitter title
Engaging Game-Based Learning for Maths and Spelling | Sumdog
Twitter image
Not set

robots.txt

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

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

  • Google Analyticsanalytics

    Found "googletagmanager.com/gtag/js" in the page's HTML

  • Google Tag Manageranalytics

    Found "googletagmanager.com/gtm.js" in the page's HTML

  • Cloudflare Bot Managementcdn

    Cookie set: __cf_bm

Related domains

Similar connectivity

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