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sefaria.org

https://sefaria.org· First analyzed 25 Apr 2026· Updated 25 Apr 2026
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sefaria.org
Desktop screenshot of sefaria.org
Mobile screenshot of sefaria.org
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.26.15.210

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

rajeev.ns.cloudflare.com.pola.ns.cloudflare.com.

Performance

88

Core Web Vitals

Weight

First Contentful Paint
1.6 s10%
Speed Index
2.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.7 MB
109 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Strapi

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

16 Technologies Detected

Analytics

5
Google Analytics
Google Analytics 4
Facebook Pixel
Hotjar
Sentry

Libraries

2
jQueryv2.2.4
jQuery UI

Fonts

2
Google FontsAdobe Fonts (Typekit)

Frameworks

1
React

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Other

1
VWO

Other

1
Unbounce

CDN

1
Cloudflare

SEO Analysis

C64/100
19
8
0
Meta Tags13/15
Content9/12
Headings3/8
Technical17/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile2/4
Indexability3/3
S
sefaria.orgsefaria.org

Sefaria: a Living Library of Jewish Texts Online

The largest free library of Jewish texts available to read online in Hebrew and English including Torah, Tanakh, Talmud, Mishnah, Midrash, commentaries and m...

Description truncated.
Title Length48 chars

Recommended: 50-60 chars (~285px / 580px)

Description Length161 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    4 rules

    Local SEO

    Local Search Readiness

    12/100
    Poor
    4 12 2

    This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

    Sponsored

    AI & LLM Readiness

    D42/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    0/25
    Citation
    11/25

    AI Bot Access

    14/14 accessible
    AI Search
    OAI-SearchBot
    PerplexityBot
    Claude-SearchBot
    Gemini-Deep-Research
    DuckAssistBot
    Training
    GPTBot
    ClaudeBot
    Google-Extended
    Meta-ExternalAgent
    Bytespiderinfo
    Amazonbot
    Applebot-Extended
    CCBotinfo
    Fetch
    ChatGPT-User

    Machine Readability

    llms.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:4%
    Words:494
    Token eff.:Optimal
    Sections/1K:2
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 1w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    Sponsored

    Accessibility

    WCAG 2.1 Compliance

    Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
    A
    82/100
    13
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    15/15
    Verifies form fields have labels, error messages are clear, and inputs are properly associated.
    Color & Contrast
    15/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    15/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    7/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    Carbon Footprint

    SWDM v4 · Eco-Score

    Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
    39/100
    D
    276 mg
    CO₂e / view
    2.7 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    315 mg
    vs
    Returning (cached)
    158 mg
    Annual (10K/mo)
    33.1 kg
    Emission Segments
    Data Center
    14 mg
    Network
    81 mg
    Device
    181 mg
    Resource Breakdown
    JavaScript
    2.4 MB
    Images
    24.8 KB
    CSS
    196.5 KB
    Fonts
    4.8 KB
    HTML
    13.4 KB
    Other
    4.4 KB
    Green Hosting Verified
    Cloudflare
    Provider Match
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    41%Poor
    Interactive

    HTTPS

    WAF

    80d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    16.04.2026

    Valid Until

    15.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    sefaria.org*.sefaria.org

    SHA-256 Fingerprint

    82:7D:BE:27:51:35:89:4C:37:38:92:17:97:3E:E5:94:69:59:E4:6E...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-origin
    *
    age
    0
    cf-cache-status
    DYNAMIC
    cf-ray
    9f1e2f4a392a8f74-SJC
    content-encoding
    ⚡ Brotli(br)
    content-language
    en
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (4)

    aspmx.l.google.com
    alt1.aspmx.l.google.com
    aspmx2.googlemail.com
    smtp.google.com

    Domain Information

    sefaria.org

    Domain Age
    15y 4m

    Created

    20.12.2010

    Expires

    20.12.2033

    Last Updated

    25.09.2024

    Registrar

    Cloudflare, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    Privacy policy page linked

    Mobile Compatibility

    Viewport & Responsive Test

    Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
    C
    69/100
    Mobile Friendly1 breakpoint
    Viewport Meta
    The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
    Responsive Design
    Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
    Touch Icons
    Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
    Readable Font Size
    Base font size should be at least 16px on mobile to ensure text is readable without zooming.
    Relative Units
    Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
    No H-Scroll Risk
    No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
    Tap Targets OK
    Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
    No Fixed Widths
    No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
    Viewport
    width=device-width, initial-scale=1, user-scalable=no
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Helvetica Neue

    WCAG AA
    69/100
    Readability
    /30
    20/30

    16px · LH --

    Hierarchy
    /20
    10/20

    1.38x ratio

    WCAG
    /25
    22/25

    5.74:1 min contrast

    Performance
    /25
    17/25

    System fonts

    Heading Font

    Helvetica Neue

    Sans22px

    Body Font

    Helvetica Neue

    Sans16px

    Contrast Ratio

    5.74:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    Single Font Family

    left aligned
    22px
    h1
    15px
    h3

    ✅ Excellent readability: 16px body text is ideal for all devices.

    ❌ Very complex text: Flesch score 22/100. Consider shorter sentences and simpler words.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.7:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    GGoogle FontsFlesch 22

    Color Palette

    4 unique colors
    Light
    #ffffff
    Background· 80.69999999999999%
    #c1c5cc
    Text· 5.5%
    #18345d
    Primary· 0%
    #727f94
    Secondary· 1.9%

    Business & Marketing Stack

    5 Tools Detected

    Enterprise

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    HotjarMid-Market

    User behavior and product analytics

    Advertising

    1
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    A/B Testing & Optimization

    1
    VWO (Visual Website Optimizer)Mid-Market

    Experimentation and conversion optimization

    3

    Categories

    5

    Total Tools

    0

    Enterprise

    3

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    30 Resources

    20
    Scripts
    10
    Styles
    12
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(3)gstatic.com(3)google-analytics.com(2)connect.facebook.net(2)unpkg.com(2)

    Website Identity

    sefaria.org

    hello@sefaria.org
    15 years old
    Location detected: 🇨🇦 Canadavia ip
    Cloudflare, Inc.📧 Google Workspaceen

    Sponsored

    Last analyzed: 25 Apr 2026 at 14:55

    Historical Analysis & Change Tracking