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challiance.org

https://challiance.org· First analyzed 17 May 2026· Updated 17 May 2026
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challiance.org
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Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

34.192.123.133

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Server

Microsoft IIS

Nameservers

udns1.ultradns.net.udns2.ultradns.net.

Performance

87

Core Web Vitals

Weight

First Contentful Paint
1.7 s10%
Speed Index
2.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
712 KB
115 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Amazon Web Services (AWS)

Technology Stack

12 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Libraries

2
jQueryv1.9.1
jQuery UI

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Email Marketing

1
Constant Contact

Social

1
ShareThis

Web Servers

1
Microsoft IISv10.0

Customer Support

1
Zendesk

SEO Analysis

C66/100
17
11
0
Meta Tags13/15
Content10/12
Headings8/8
Technical18/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social1/5
Freshness0/4
Mobile1/4
Indexability3/3
C
challiance.orgchalliance.org

Home | Cambridge Health Alliance | CHAlliance.org

Information about Cambridge Health Alliance (CHA), an innovative healthcare system and a Harvard Teaching Hospital serving the communities north of Boston, M...

Description truncated.
Title Length49 chars

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

Description Length170 chars

Recommended: 120-160 chars

Issues (0)

    11 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    3 URLs

    3 sub-sitemaps

    robots.txt

    375 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    17/100
    Poor
    6 11 2

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

    Sponsored

    AI & LLM Readiness

    D49/100
    Bot Access
    20/25
    Machine Read.
    16/25
    Schema Data
    0/25
    Citation
    13/25

    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.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    navheader/footer
    Text ratio:5%
    Words:1,176
    Token eff.:Optimal
    Sections/1K:20.4
    Depth:2/5

    Structured Data

    Microdata

    Citation Readiness

    Opening Summary32w
    Descriptive Headingsavg 4.2w
    Canonical URL
    Open Graph1/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (11)
    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.
    C
    68/100
    11
    Passed
    4
    Critical
    2
    Warnings
    Images & Alt Text
    13/20
    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
    5/15
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    9/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 recommendations
    • •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.
    61/100
    A
    72 mg
    CO₂e / view
    712.1 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    82 mg
    vs
    Returning (cached)
    41 mg
    Annual (10K/mo)
    8.6 kg
    Emission Segments
    Data Center
    4 mg
    Network
    21 mg
    Device
    47 mg
    Resource Breakdown
    JavaScript
    285.3 KB
    Images
    23.4 KB
    CSS
    367.0 KB
    HTML
    35.8 KB
    Other
    601 B
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    10%Critical
    Critical / Transactional

    HTTPS

    No WAF

    125d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Amazon

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    06.03.2026

    Valid Until

    19.09.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    challiance.org*.challiance.org

    SHA-256 Fingerprint

    C6:3B:A7:7C:E4:4E:A0:B6:B3:E3:2D:32:A8:12:B1:3E:BE:8C:97:95...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟣 Private(private)
    content-encoding
    📦 Gzip(gzip)
    content-length
    36342
    content-security-policy
    frame-ancestors 'self' https://portal.mendfamily.com/
    content-type
    text/html; charset=utf-8
    date
    Sun, 17 May 2026 03:46:48 GMT
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (5)

    alt1.aspmx.l.google.com
    alt3.aspmx.l.google.com
    alt4.aspmx.l.google.com
    aspmx.l.google.com

    +1 more

    Domain Information

    challiance.org

    Domain Age
    28y 4m

    Created

    21.01.1998

    Expires

    20.01.2027

    Last Updated

    21.12.2025

    Registrar

    Hosting Concepts B.V. d/b/a Registrar.eu

    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

    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.
    D
    54/100
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Gotham

    WCAG Partial
    64/100
    Readability
    /30
    20/30

    16px · LH 1.41

    Hierarchy
    /20
    18/20

    2.18x ratio · ✓ H1→H6

    WCAG
    /25
    13/25

    1:1 min contrast

    Performance
    /25
    13/25

    1 font · 4 req

    Heading Font

    Gotham

    Sans34px

    Body Font

    Gotham

    Sans16px

    Contrast Ratio

    1:1

    7 issues

    Reading Comfort

    ~40 CPL

    Narrow lines
    34px
    h1
    52px
    h2
    26px
    h3
    22px
    h4
    16px
    p

    ⚠️ Small text: 16px may strain on mobile. Use ≥16px for WCAG compliance.

    ✅ Optimal line spacing: 1.41 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 41/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Strong hierarchy: Headlines are 2.2x larger than body text.

    Buy on MyFontsFlesch 41

    Color Palette

    14 unique colors
    3.2:1 AA Large Light
    #ffffff
    Background· 19.599999999999998%
    #9b8d88
    Secondary· 7.7%
    #445153
    Primary· 10.4%
    #8b736a
    Secondary· 7.6%
    #586f7a
    Secondary· 6%
    #973c3b
    Secondary· 5.9%
    #99aab2
    Secondary· 5.3%
    #2b333d
    Secondary· 5.1%

    Business & Marketing Stack

    6 Tools Detected

    Enterprise

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    2
    Facebook PixelMid-Market
    AdRollMid-Market

    Ad platforms and retargeting pixels

    Social Media

    2
    Facebook SDKFree
    ShareThisFree

    Social widgets and sharing tools

    3

    Categories

    6

    Total Tools

    0

    Enterprise

    2

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    24 Resources

    20
    Scripts
    4
    Styles
    13
    Async
    1
    Defer

    Top Script Sources

    googletagmanager.com(6)ajax.googleapis.com(2)local(2)connect.facebook.net(1)gstatic.com(1)

    Website Identity

    challiance.org

    webmaster@challiance.org
    28 years old
    Location detected: 🇺🇸 United Statesvia ip
    Hosting Concepts B.V. d/b/a Registrar.eu📧 Google Workspaceen

    Sponsored

    Last analyzed: 17 May 2026 at 03:47

    Historical Analysis & Change Tracking