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shankerinstitute.org

https://shankerinstitute.org· First analyzed 25 May 2026· Updated 25 May 2026
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shankerinstitute.org
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Mobile

Sponsored

Hosting Provider

Pantheon
pantheon.io

IP Address

23.185.0.4

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

Pantheon

Server

Nginx

CDN

Fastly

Nameservers

candy.ns.cloudflare.com.peyton.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
675 ms10%
Speed Index
878 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
415 KB
28 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Web Servers

1
Nginx

Customer Support

1
Zendesk

SEO Analysis

B78/100
23
4
0
Meta Tags11/15
Content12/12
Headings8/8
Technical18/25
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
S
shankerinstitute.orgshankerinstitute.org

Albert Shanker Institute: Home | Shanker Institute

Research and commentary on education, labor, and democracy.

Title Length50 chars

Recommended: 50-60 chars (~297px / 580px)

Description Length59 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1,808 URLs

    robots.txt

    54 rules

    Local SEO

    Local Search Readiness

    8/100
    Poor
    2 13 2

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

    Sponsored

    AI & LLM Readiness

    D46/100
    Bot Access
    19/25
    Machine Read.
    12/25
    Schema Data
    0/25
    Citation
    15/25

    AI Bot Access

    13/14 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
    navheader/footer
    Text ratio:11%
    Words:536
    Token eff.:Optimal
    Sections/1K:26.1
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary34w
    Descriptive Headingsavg 4.4w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    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
    87/100
    14
    Passed
    1
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    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
    13/15
    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.

    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.
    57/100
    A
    51 mg
    CO₂e / view
    414.8 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    59 mg
    vs
    Returning (cached)
    29 mg
    Annual (10K/mo)
    6.2 kg
    Emission Segments
    Data Center
    12 mg
    Network
    12 mg
    Device
    28 mg
    Resource Breakdown
    JavaScript
    36.1 KB
    Images
    120.4 KB
    CSS
    248.2 KB
    Fonts
    1.6 KB
    HTML
    8.5 KB
    Green Hosting Not Verified
    Pantheon
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    56%Poor
    Interactive

    HTTPS

    No WAF

    62d

    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

    28.04.2026

    Valid Until

    27.07.2026

    Subject Alternative Names (2)

    shankerinstitute.orgwww.shankerinstitute.org

    SHA-256 Fingerprint

    AF:8E:7E:4B:B6:C3:37:7C:A7:22:56:2A:30:B4:CB:35:E7:79:3E:FA...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    age
    53362
    cache-control
    🔵 1 Days(max-age=86400, public)
    content-encoding
    📦 Gzip(gzip)
    content-language
    en
    content-length
    8354
    Good Warning Issue

    Email Infrastructure

    Rackspace Email

    Score

    20

    SPF
    DKIM
    DMARC

    MX Records (2)

    mx2.emailsrvr.com
    mx1.emailsrvr.com

    Domain Information

    shankerinstitute.org

    Domain Age
    25y 9m

    Created

    04.08.2000

    Expires

    04.08.2027

    Last Updated

    25.09.2018

    Registrar

    NameCheap, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    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.
    B
    72/100
    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=1.0
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Raleway + Lexend

    WCAG AA
    70/100
    Readability
    /30
    21/30

    16px · LH 1.50

    Hierarchy
    /20
    12/20

    1.75x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    6.21:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 2 req

    Heading Font

    Raleway

    Sans28px

    Body Font

    Lexend

    Sans16px

    Contrast Ratio

    6.21:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~36 CPL

    Narrow lines
    28px
    h1
    34px
    h2
    21px
    h3
    16px
    p

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

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ❌ Very complex text: Flesch score 29/100. Consider shorter sentences and simpler words.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.2:1).

    ✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

    ✅ Lean font stack: 2 font families keeps load times fast.

    GGoogle FontsFlesch 29

    Color Palette

    8 unique colors
    Light
    #ffffff
    Primary· 33.400000000000006%
    #3943a9
    Primary· 36.5%
    #735f54
    Secondary· 6%
    #ae9d7e
    Secondary· 5.8%
    #8b303a
    Secondary· 5.4%
    #d4d4c8
    Secondary· 5%
    #8e8474
    Secondary· 5%
    #242a66
    Secondary· 2.9%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    13 Resources

    8
    Scripts
    5
    Styles
    3
    Async
    0
    Defer

    Top Script Sources

    local(3)googletagmanager.com(2)secure.wufoo.com(1)google-analytics.com(1)kit.fontawesome.com(1)

    Website Identity

    shankerinstitute.org

    25 years old

    Albert Shanker Institute555 New Jersey Ave, NWWashington, DC 20001202-879-4532

    Location detected: 🇺🇸 United Statesvia ip
    NameCheap, Inc.📧 Rackspace Emailen

    Social Profiles

    FacebookYouTube

    Sponsored

    Last analyzed: 25 May 2026 at 06:29

    Historical Analysis & Change Tracking