StackOptic
Back to Search
columbiadoctors.org favicon

columbiadoctors.org

https://columbiadoctors.org· First analyzed 30 Apr 2026· Updated 30 Apr 2026
Export
columbiadoctors.org
Desktop screenshot of columbiadoctors.org
Mobile screenshot of columbiadoctors.org
Mobile

Sponsored

Hosting Provider

Pantheon

IP Address

151.101.130.228

Site Location

🇺🇸 United Statesvia phone

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

Nginx

CDN

Fastly

Nameservers

ns-1493.awsdns-58.org.ns-1995.awsdns-57.co.uk.ns-955.awsdns-55.net.ns-100.awsdns-12.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
705 ms10%
Speed Index
916 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1000 KB
38 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

10 Technologies Detected

Libraries

2
jQuery
jQuery UI

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

UI Components

1
Slick Carousel

Other

1
lazysizes

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Matomo

Web Servers

1
Nginx

SEO Analysis

A80/100
25
3
0
Meta Tags13/15
Content10/12
Headings8/8
Technical20/25
E-E-A-T2/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
C
columbiadoctors.orgcolumbiadoctors.org

Top Doctors in New York | ColumbiaDoctors

ColumbiaDoctors provides patients access to the best doctors in New York City, with more than 1,800 specialists, dentists, and nurses. Call today 1-877-426-5...

Description truncated.
Title Length41 chars

Recommended: 50-60 chars (~251px / 580px)

Description Length161 chars

Recommended: 120-160 chars

Issues (0)

    3 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1,948 URLs

    robots.txt

    76 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    28/100
    Needs Work
    9 9 1

    Sponsored

    AI & LLM Readiness

    D57/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    7/25
    Citation
    17/25

    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.txtvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:2%
    Words:821
    Token eff.:Optimal

    Structured Data

    2 JSON-LD
    Organization×1.1WebSiteSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary46w
    Descriptive Headingsavg 3.2w
    Canonical URL
    Open Graph2/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    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
    15
    Passed
    2
    Critical
    1
    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
    11/15
    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.

    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.
    62/100
    B
    124 mg
    CO₂e / view
    1000.0 KB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    141 mg
    vs
    Returning (cached)
    71 mg
    Annual (10K/mo)
    14.8 kg
    Emission Segments
    Data Center
    28 mg
    Network
    30 mg
    Device
    66 mg
    Resource Breakdown
    JavaScript
    145.6 KB
    Images
    400.9 KB
    CSS
    345.9 KB
    Fonts
    54.2 KB
    HTML
    52.8 KB
    Other
    588 B
    Green Hosting Not Verified
    Pantheon
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    98%Excellent
    Static / Informational

    HTTPS

    No WAF

    299d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    Internet2

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/2

    Valid From

    23.01.2026

    Valid Until

    23.02.2027

    OCSP Stapling

    Enabled

    Subject Alternative Names (20)

    columbiadoctors.org*.columbiadoctors.orgcchd.columbiamedicine.orgcolumbiachildrenshealth.orgcolumbiadoctors-columbuscircle.comcolumbiadoctors-columbuscircle.orgcolumbiadoctors.comcolumbiadoctorsmidtown.com+12 more

    SHA-256 Fingerprint

    FE:B3:B1:EC:EA:24:79:3C:E1:66:EC:10:8C:D1:6A:88:C1:F5:2F:A5...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    age
    3993
    cache-control
    🟡 6 Hours(public, max-age=21600)
    content-encoding
    📦 Gzip(gzip)
    content-language
    en
    content-length
    53809
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    columbiadoctors.org

    Domain Age
    17y 5m

    Created

    07.11.2008

    Expires

    07.11.2026

    Last Updated

    08.10.2025

    Registrar

    Amazon Registrar, Inc.

    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.
    B
    76/100
    Mobile Friendly137 breakpoints
    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

    Montserrat

    WCAG Partial
    61/100
    Readability
    /30
    16/30

    14px · LH 1.70

    Hierarchy
    /20
    15/20

    1.56x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    1:1 min contrast

    Performance
    /25
    16/25

    3 fonts · 2 req

    Heading Font

    Montserrat

    Sans22px

    Body Font

    Montserrat

    Sans14px

    Contrast Ratio

    1:1

    14 issues

    Reading Comfort

    ~42 CPL

    Narrow lines
    22px
    h1
    35px
    h2
    29px
    h3
    15px
    h4
    14px
    p
    Minor Second
    Scale

    ⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

    ⚠️ Hard to read: Flesch score 47/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

    ✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

    AAdobe FontsBuy on MyFontsFluid Type (rem)Flesch 47

    Color Palette

    11 unique colors
    5.37:1 AA Light
    #f7f7f7
    Background· 25.599999999999998%
    #5c686b
    Secondary· 8%
    #1e4f91
    Primary· 16.7%
    #9cc5f3
    Accent· 7.3%
    #a1618d
    Secondary· 7%
    #464d5c
    Text· 6.8%
    #d0ccc1
    Border· 6.3%
    #647f8d
    Secondary· 4.9%

    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

    18 Resources

    10
    Scripts
    8
    Styles
    2
    Async
    1
    Defer

    Top Script Sources

    columbiadoctors.org(8)columbiamed.containers.piwik.pro(2)

    Website Identity

    ColumbiaDoctors

    ColumbiaDoctors

    MedicalOrganization

    ColumbiaDoctors is the faculty practice of Columbia University Vagelos College of Physicians and Surgeons and Columbia University Irving Medical Center, delivering comprehensive adult and pediatric care across New York City, Westchester County, New Jersey, and Connecticut with access to world-class

    cdsafety@cumc.columbia.edu
    +18774265637
    www.columbiadoctors.org/
    17 years old
    Location detected: 🇺🇸 United Statesvia phone
    Amazon Registrar, Inc.en

    Sponsored

    Last analyzed: 30 Apr 2026 at 08:59

    Historical Analysis & Change Tracking