healtheffects.org

https://healtheffects.org· First analyzed 15 May 2026· Updated 15 May 2026

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healtheffects.org

Mobile

Sponsored

Hosting Provider

Pantheon

pantheon.io

IP Address

23.185.0.3

Site Location

🇺🇸 United Statesvia phone

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

Pantheon

Server

Nginx

CDN

Fastly

Nameservers

ns87.worldnic.com.ns88.worldnic.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1 MB

42 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupalv7

Technology Stack

11 Technologies Detected

Analytics

Libraries

CSS Frameworks

Fonts

Email Marketing

Web Servers

SEO Analysis

C60/100

Meta Tags7/15

Content10/12

Headings6/8

Technical15/21

E-E-A-T3/7

Images1/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile1/4

Indexability3/3

healtheffects.orghealtheffects.org

| Health Effects Institute

Health Effects Institute provides high-quality, trusted science for cleaner air and better health. Read more about our research mission and unique model of e...

Description truncated.

Title Length26 chars

Recommended: 50-60 chars (~152px / 580px)

Description Length201 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (14/15) — critical for accessibility and SEO

11 issues found

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Local SEO

Local Search Readiness

20/100

Needs Work

6 10 2

Sponsored

AI & LLM Readiness

D48/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

0/25

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.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

navheader/footer

Text ratio:5%

Words:794

Token eff.:Optimal

Sections/1K:15.1

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary11w

Descriptive Headingsavg 3.4w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

AI readiness recommendation preview...

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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.

52/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

2/15

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

2/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

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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.

43/100

127 mg

CO₂e / view

1.0 MB

Page Weight

70%

Cleaner Than

New Visitor

145 mg

Returning (cached)

73 mg

Annual (10K/mo)

15.2 kg

Emission Segments

Data Center

28 mg

Network

30 mg

Device

68 mg

Resource Breakdown

JavaScript

205.3 KB

Images

621.3 KB

CSS

180.3 KB

Fonts

1.1 KB

HTML

17.8 KB

Green Hosting Not Verified

Pantheon

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

56%Poor

Interactive

HTTPS

No WAF

71d

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

26.04.2026

Valid Until

25.07.2026

Subject Alternative Names (2)

healtheffects.orgwww.healtheffects.org

SHA-256 Fingerprint

E6:0D:17:FB:21:09:B3:9C:37:8C:C3:AC:13:55:D7:EF:58:CC:47:C2...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

118

cache-control

🟡 1s(private, max-age=1)

content-encoding

📦 Gzip(gzip)

content-language

content-length

17907

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (3)

healtheffects-org.inbound.emailservice.cc

healtheffects-org.inbound.emailservice.co

healtheffects-org.inbound.emailservice.io

Domain Information

healtheffects.org

Domain Age

30y 9m

Created

11.08.1995

Expires

10.08.2027

Last Updated

18.08.2023

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

70/100

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...

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Typography & Readability

Cabin

WCAG Partial

77/100

Readability

/30

22/30

16px · LH 1.43

Hierarchy

/20

19/20

3.62x ratio · ✓ H1→H6

WCAG

/25

15/25

1:1 min contrast

Performance

/25

21/25

System fonts

Heading Font

Cabin

Sans58px

Body Font

Cabin

Sans16px

Contrast Ratio

1:1

27 issues

Reading Comfort

~38 CPL

Narrow lines

58px

44px

36px

18px

16px

✅ 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 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 27 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 3.6x larger than body text.

GGoogle FontsFluid TypeFlesch 0

Color Palette

12 unique colors

2.55:1 Fail Light

#ffffff

Primary· 8.3%

#a5a1a4

Other· 6.1%

#243b6e

Accent· 15.3%

#345186

Secondary· 15.299999999999999%

#d8eaf4

Primary· 12.6%

#4c71a6

Primary· 12%

#3d6095

Secondary· 10%

#c9d0d4

Secondary· 6.1%

Business & Marketing Stack

2 Tools Detected

Advanced

Marketing Automation

MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

healtheffects.org(8)wfvp.maillist-manage.com(3)googletagmanager.com(2)ajax.googleapis.com(2)google-analytics.com(1)

Website Identity

healtheffects.org

+1-617-488-2300

30 years old

One Beacon Street, Suite 21300Boston, MA 02108Telephone:1-617-488-2300

Location detected: 🇺🇸 United Statesvia phone

Network Solutions, LLCen

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Last analyzed: 15 May 2026 at 20:04

Historical Analysis & Change Tracking