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ehponline.org

https://ehponline.org· First analyzed 14 May 2026· Updated 14 May 2026
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ehponline.org
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Hosting Provider

Incapsula Inc

IP Address

45.60.77.135

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 New York, United States

ASN

AS19551

Organization

Incapsula Inc

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

dns4.g01.ns1global.org.dns3.g01.ns1global.org.dns2.g01.ns1global.org.dns1.g01.ns1global.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
458 ms10%
Speed Index
595 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
300 KB
152 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Incapsula Inc
CDN
Cloudflare

Technology Stack

12 Technologies Detected

Analytics

6
Google Analytics
Google Analytics 4
Facebook Pixel
Hotjar
Microsoft ClarityFullStory

Advertising

2
Google AdsTwitter Ads

Libraries

1
jQueryv3.1.1

CSS Frameworks

1
Tailwind CSS

CDN

1
Cloudflare

Customer Support

1
Zendesk

SEO Analysis

C64/100
17
8
0
Meta Tags12/15
Content6/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
E
ehponline.orgehponline.org

Environmental Health Perspectives :

Read current and featured research from the Environmental Health Perspectives on ACS Publications, a trusted source for peer-reviewed journals.

Title Length35 chars

Recommended: 50-60 chars (~208px / 580px)

Description Length146 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    35 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    13/100
    Poor
    3 14 1

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

    Sponsored

    AI & LLM Readiness

    F30/100
    Bot Access
    19/25
    Machine Read.
    7/25
    Schema Data
    0/25
    Citation
    4/25

    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
    Text ratio:3%
    Words:1,769
    Token eff.:Optimal

    Structured Data

    1 JSON-LD

    Citation Readiness

    Opening Summary
    Descriptive Headings
    Canonical URL
    Open Graph0/3
    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
    76/100
    12
    Passed
    5
    Critical
    0
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    13/20
    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
    7/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    11/15
    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.
    54/100
    A+
    37 mg
    CO₂e / view
    300.4 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    43 mg
    vs
    Returning (cached)
    21 mg
    Annual (10K/mo)
    4.5 kg
    Emission Segments
    Data Center
    8 mg
    Network
    9 mg
    Device
    20 mg
    Resource Breakdown
    JavaScript
    119.0 KB
    Images
    12.6 KB
    CSS
    300 B
    HTML
    41.6 KB
    Other
    127.0 KB
    Green Hosting Not Verified
    Incapsula Inc
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    C

    Security Score

    61%Fair
    Interactive

    HTTPS

    WAF

    82d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    07.05.2026

    Valid Until

    05.08.2026

    Subject Alternative Names (1)

    pubs.acs.org

    SHA-256 Fingerprint

    6D:D9:AD:5E:BD:FC:41:91:84:84:20:DC:DE:5F:D3:44:BC:ED:DA:A8...

    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)
    cf-cache-status
    DYNAMIC
    cf-ray
    9fbcbd3bbb251d8b-BOS
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html;charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    ehponline.org

    Domain Age
    24y 3m

    Created

    04.02.2002

    Expires

    04.02.2027

    Last Updated

    17.04.2026

    Registrar

    Network Solutions, LLC

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Osano

    Cookie Consent Banner
    Osano
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Osano
    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.
    B
    76/100
    Mobile Friendly16 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,maximum-scale=10, user-scalable=1
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Roboto

    WCAG Partial
    74/100
    Readability
    /30
    23/30

    16px · LH 1.43

    Hierarchy
    /20
    18/20

    2x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    1:1 min contrast

    Performance
    /25
    16/25

    System fonts

    Heading Font

    Roboto

    Sans32px

    Body Font

    Roboto

    Sans16px

    Contrast Ratio

    1:1

    17 issues

    Reading Comfort

    ~38 CPL

    Narrow lines
    32px
    h1
    36px
    h2
    19px
    h3
    18px
    h4
    16px
    p

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

    ✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

    ❌ Very complex text: Flesch score 27/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 17 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 2.0x larger than body text.

    Flesch 27

    Color Palette

    6 unique colors
    2.13:1 Fail Light
    #ffffff
    Background· 71.99999999999999%
    #afb3a9
    Other· 5.3%
    #fecc47
    Primary· 9%
    #264ea0
    Primary· 5%
    #dbd9c8
    Secondary· 4.4%

    Business & Marketing Stack

    4 Tools Detected

    Advanced

    Behavior Analytics

    3
    Google AnalyticsFree
    HotjarMid-Market
    Microsoft ClarityFree

    User behavior and product analytics

    Privacy & Cookies

    1
    OsanoMid-Market

    Cookie consent and privacy compliance tools

    2

    Categories

    4

    Total Tools

    0

    Enterprise

    2

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSenseGoogle Ad Manager

    Sponsored

    Scripts & Styles

    24 Resources

    20
    Scripts
    4
    Styles
    14
    Async
    2
    Defer

    Top Script Sources

    googletagmanager.com(3)local(3)static.cloudflareinsights.com(2)snippet.maze.co(2)img.en25.com(1)

    Website Identity

    Environmental Health Perspectives

    Periodical
    24 years old
    Location detected: 🇺🇸 United Statesvia ip
    Network Solutions, LLCen

    Sponsored

    Last analyzed: 14 May 2026 at 20:45

    Historical Analysis & Change Tracking