StatsMyWeb
Main menu

Domain report

cliffsnotes.com

cliffsnotes.com ranks in the top 0.012% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 5 distinct hosts observed under it.

Explore cliffsnotes.com in the Web Graph

Connectivity

#16,612harmonic-centrality rank
Top percentile
0.012%
Hosts observed
5

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

DNS records

A
  • 172.64.148.137
  • 104.18.39.119
AAAA
No records found.
MX
  • 1 aspmx.l.google.com.
  • 10 alt3.aspmx.l.google.com.
  • 10 alt4.aspmx.l.google.com.
  • 5 alt1.aspmx.l.google.com.
  • 5 alt2.aspmx.l.google.com.
NS
  • langston.ns.cloudflare.com.
  • liv.ns.cloudflare.com.

Live preview

Screenshot of cliffsnotes.com

This site's Content-Security-Policy restricts embedding to specific origins ("frame-ancestors 'self'"), which does not include StatsMyWeb.

Since cliffsnotes.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
Not sent
Content-Encoding
Not sent

Security

Content-Security-Policy
frame-ancestors 'self'; report-uri https://api.coursehero.com/v1/csp-report-forwarder
Strict-Transport-Security
max-age=31536000; includeSubDomains; preload
X-Frame-Options
Not sent
X-Content-Type-Options
Not sent
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

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

    → https://cliffsnotes.com/

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

    → https://www.cliffsnotes.com/

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

Meta tags

Title
CliffsNotes | CliffsNotes Study Guides | Book Summaries, Test Preparation & Homework Help | Written by Teachers
Description
CliffsNotes is the original (and most widely imitated) study guide. CliffsNotes study guides are written by real teachers and professors, so no matter what you're studying, CliffsNotes can ease your homework headaches and help you score high on exams. Founded in 1958 by Clifton Keith Hillegass, CliffsNotes is the original company that produced study guides and book summaries ranging from Shakespeare to Algebra and the SAT!
Canonical
https://www.cliffsnotes.com/
Robots
Not set
Generator
Not set
Open Graph title
Not set
Open Graph description
Not set
Open Graph image
Not set
Open Graph type
Not set
Twitter card
summary_large_image
Twitter title
CliffsNotes | CliffsNotes Study Guides | Book Summaries, Test Preparation & Homework Help | Written by Teachers
Twitter image
https://www.cliffsnotes.com/images/logo.png

robots.txt

Disallow rules (User-agent: *)
29
Disallow rules (other agents)
2

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

  • PHPother

    Cookie set: PHPSESSID

  • Cloudflare Bot Managementcdn

    Cookie set: __cf_bm

Related domains

Similar connectivity

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