StackOptic
Back to Search
chadwyck.com favicon

chadwyck.com

https://chadwyck.com· First analyzed 10 May 2026· Updated 10 May 2026
Export
chadwyck.com
Desktop screenshot of chadwyck.com
Mobile screenshot of chadwyck.com
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.199.246

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

odin.ns.cloudflare.com.collins.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
581 ms10%
Speed Index
755 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
6.6 MB
82 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Optimizely CMS (Episerver)

Technology Stack

11 Technologies Detected

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

Analytics

2
Google Analytics
Facebook Pixel

Advertising

2
Twitter AdsLinkedIn Ads

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Material Icons

Tag Managers

1
Google Tag Manager

Other

1
VWO

CDN

1
Cloudflare

SEO Analysis

B74/100
21
5
0
Meta Tags15/15
Content12/12
Headings6/8
Technical16/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
C
chadwyck.comchadwyck.com

ProQuest | Databases, EBooks and Technology for Research

ProQuest powers research in academic, corporate, government, public and school libraries around the world with unique content

Title Length56 chars

Recommended: 50-60 chars (~343px / 580px)

Description Length125 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    1 URLs

    1 sub-sitemaps

    robots.txt

    Local SEO

    Local Search Readiness

    10/100
    Poor
    4 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

    F39/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    0/25
    Citation
    12/25

    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
    Text ratio:9%
    Words:2,192
    Token eff.:Optimal

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary16w
    Descriptive Headingsavg 4.2w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (12)
    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.
    B
    72/100
    10
    Passed
    3
    Critical
    2
    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
    10/15
    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
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 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.
    26/100
    F
    682 mg
    CO₂e / view
    6.6 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    779 mg
    vs
    Returning (cached)
    390 mg
    Annual (10K/mo)
    81.8 kg
    Emission Segments
    Data Center
    33 mg
    Network
    200 mg
    Device
    448 mg
    Resource Breakdown
    JavaScript
    276.6 KB
    Images
    6.0 MB
    CSS
    313.2 KB
    HTML
    23.5 KB
    Other
    1.3 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    26%Critical
    Interactive

    HTTPS

    WAF

    83d

    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+H3

    Valid From

    04.05.2026

    Valid Until

    02.08.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    about.proquest.com

    SHA-256 Fingerprint

    A8:02:63:2A:8B:6A:28:1B:BE:24:03:2B:E9:0C:C3:88:B7:10:A2:AD...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cache-control
    🔴 No Cache(no-cache,no-store)
    cf-cache-status
    DYNAMIC
    cf-ray🇫🇷 Paris
    9f9ba15a7d0c22af-CDG
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    null

    Domain Information

    chadwyck.com

    Domain Age
    31y 10m

    Created

    25.06.1994

    Expires

    24.06.2026

    Last Updated

    23.05.2025

    Registrar

    MarkMonitor Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    OneTrust

    Cookie Consent Banner
    OneTrust
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: OneTrust
    Privacy policy page linked
    Data Protection Officer mentioned

    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
    57/100
    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

    Regular Clarivate

    WCAG Partial
    81/100
    Readability
    /30
    24/30

    16px · LH 1.50

    Hierarchy
    /20
    20/20

    4.38x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    21/25

    System fonts

    Heading Font

    Regular Clarivate

    Sans70px

    Body Font

    Regular Clarivate

    Sans16px

    Contrast Ratio

    1:1

    5 issues

    Reading Comfort

    ~34 CPL

    Narrow lines
    70px
    h1
    36px
    h2
    30px
    h3
    24px
    h4
    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 19/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 5 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 4.4x larger than body text.

    AAdobe FontsBuy on MyFontsFlesch 19

    Color Palette

    12 unique colors
    4.96:1 AA Dark
    #6f7072
    Other· 28.5%
    #ffffff
    Text· 10.4%
    #aabbac
    Primary· 6%
    #595e70
    Secondary· 4.4%
    #527692
    Secondary· 1.6%
    #ecefd9
    Secondary· 0.6%

    Business & Marketing Stack

    9 Tools Detected

    Enterprise

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    4
    Facebook PixelMid-Market
    Twitter/X AdsMid-Market
    LinkedIn AdsEnterprise
    Reddit PixelMid-Market

    Ad platforms and retargeting pixels

    Privacy & Cookies

    1
    OneTrustEnterprise

    Cookie consent and privacy compliance tools

    Social Media

    1
    Facebook SDKFree

    Social widgets and sharing tools

    A/B Testing & Optimization

    1
    VWO (Visual Website Optimizer)Mid-Market

    Experimentation and conversion optimization

    5

    Categories

    9

    Total Tools

    2

    Enterprise

    4

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    21 Resources

    19
    Scripts
    2
    Styles
    8
    Async
    1
    Defer

    Top Script Sources

    local(4)cdn.cookielaw.org(2)siteintercept.qualtrics.com(2)snap.licdn.com(1)static.ads-twitter.com(1)

    Website Identity

    chadwyck.com

    31 years old
    Location detected: 🇨🇦 Canadavia ip
    MarkMonitor Inc.en

    Sponsored

    Last analyzed: 10 May 2026 at 20:18

    Historical Analysis & Change Tracking