hypothes.is favicon

hypothes.is

https://hypothes.is· First analyzed 17 Feb 2026· Updated 17 Feb 2026
Export
hypothes.is
Desktop screenshot of hypothes.is
Mobile screenshot of hypothes.is
Mobile

Sponsored

Hosting Provider

cloudflare.com

IP Address

172.66.167.82

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Nginx

CDN

Fastly

Nameservers

noel.ns.cloudflare.com.melissa.ns.cloudflare.com.

Performance

Page Speed

9.8 MB
230 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Framework
jQuery
Styling
Bootstrap
CMS
WordPressv6.7.2
Infrastructure
Hosting
Pantheon
CDN
Fastly

SEO Analysis

A82/100
10
3
0
H
hypothes.ishypothes.is

Collaborate & Annotate with Hypothesis | Online Annotation Tool

Engage students with Hypothesis, the leading online annotation tool. Create a free account or explore education solutions today!

Title Length63 chars

Recommended: 50-60 chars

Description Length128 chars

Recommended: 120-160 chars

Issues (0)

    Crawlability

    Sitemap
    robots.txt

    27 rules

    Sitemap reference found

    Sponsored

    Sponsored

    F

    Security Score

    36%Critical
    Interactive

    HTTPS

    No WAF

    61d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    19.01.2026

    Valid Until

    19.04.2026

    Subject Alternative Names (2)

    connect.hypothes.isweb.hypothes.is

    SHA-256 Fingerprint

    8A:C6:C6:34:AA:2B:D8:C8:87:BC:D2:B0:B7:AF:39:00:7E:5C:99:E9...

    Top Recommendations

    Security recommendation preview

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    age
    7922
    cache-control
    🟡 4 Hours(public, max-age=14400)
    content-encoding
    📦 Gzip(gzip)
    content-length
    71257
    content-type
    text/html; charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (5)

    alt2.aspmx.l.google.com
    aspmx3.googlemail.com
    aspmx.l.google.com
    alt1.aspmx.l.google.com

    +1 more

    Domain Information

    hypothes.is

    Domain Age
    15y 1m

    Created

    10.01.2011

    Last Updated

    26.11.2025

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    Privacy policy page linked

    Typography & Readability

    VisbyCf + sans-serif

    41/100
    Readability
    /30
    32/40

    18px · LH 1.33

    Hierarchy
    /20
    18/25

    2.89x ratio

    WCAG
    /25
    5/15

    Contrast: undefined

    Performance
    /25
    13/20

    2 fonts

    Heading Font

    VisbyCf

    Sans52px

    Body Font

    sans-serif

    Sans18px

    Contrast Ratio

    --

    Reading Comfort

    ~295 CPL

    Needs attention
    52px
    h1
    40px
    h2
    35px
    h3
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

    ✅ Strong hierarchy: Headlines are 2.9x larger than body text.

    ✅ Good performance: Using 2 font families keeps load times fast.

    ✅ Smart font loading: Using font-display: swap prevents invisible text during load.

    ⚠️ Risky: Text appears on background images without overlay protection.

    ❌ Very long lines: ~295 chars/line causes eye strain. Use max-width: 65ch.

    Business & Marketing Stack

    9 Tools Detected

    Enterprise

    CRM Systems

    1

    Customer Relationship Management platforms

    Behavior Analytics

    3

    User behavior and product analytics

    Advertising

    2

    Ad platforms and retargeting pixels

    Privacy & Cookies

    3

    Cookie consent and privacy compliance tools

    4

    Categories

    9

    Total Tools

    1

    Enterprise

    3

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    30 Resources

    20
    Scripts
    10
    Styles
    12
    Async
    1
    Defer

    Top Script Sources

    googletagmanager.com(3)web.hypothes.is(3)connect.facebook.net(2)gstatic.com(2)scripts.clarity.ms(1)

    Website Identity

    hypothes.is

    15 years old
    📧 Google Workspace

    Sponsored

    Last analyzed: 17 Feb 2026 at 02:50

    Historical Analysis & Change Tracking