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theheart.org

https://theheart.org· First analyzed 16 May 2026· Updated 16 May 2026
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theheart.org
Desktop screenshot of theheart.org
Mobile screenshot of theheart.org
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.64.149.18

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

cloe.ns.cloudflare.com.tim.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
520 ms10%
Speed Index
676 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
43 KB
132 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Analytics

1
Mouseflow

Advertising

1
Google Ads

CDN

1
Cloudflare

SEO Analysis

D58/100
15
10
1
Meta Tags13/15
Content3/12
Headings7/8
Technical16/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
T
theheart.orgtheheart.org

Cardiology News & Opinion – theheart.org | Medscape

Cardiology : Welcome to theheart.org | Medscape Cardiology, where you can peruse the latest medical news, commentary from clinician experts, major conference...

Description truncated.
Title Length51 chars

Recommended: 50-60 chars (~311px / 580px)

Description Length217 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (8 words). Search engines need substantial content for ranking.

11 issues found

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Crawlability

Sitemap

Type: index

12 URLs

12 sub-sitemaps

robots.txt

38 rules

Sitemap reference found

Local SEO

Local Search Readiness

20/100
Needs Work
6 10 2

Sponsored

AI & LLM Readiness

F24/100
Bot Access
15/25
Machine Read.
7/25
Schema Data
0/25
Citation
2/25

AI Bot Access

9/14 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:2%
Words:1,194
Token eff.:Optimal

Structured Data

No Schema

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...
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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.
D
54/100
8
Passed
5
Critical
0
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
5/20
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
14/15
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
4/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 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.
71/100
A+
4 mg
CO₂e / view
42.5 KB
Page Weight
95%
Cleaner Than
New Visitor
5 mg
vs
Returning (cached)
3 mg
Annual (10K/mo)
516 g
Emission Segments
Data Center
<0.001 g
Network
1 mg
Device
3 mg
Resource Breakdown
Images
1.3 KB
HTML
40.7 KB
Other
552 B
Green Hosting Verified
Cloudflare
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

66%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

08.05.2026

Valid Until

06.08.2026

Subject Alternative Names (20)

*.am1.medscape.com*.cdp.dev.medscape.com*.cdp.medscape.com*.cdp.staging.medscape.com*.dev01.medscape.com*.k8s.am1.medscape.com*.k8s.la1.medscape.com*.k8s.lb.medscape.com+12 more

SHA-256 Fingerprint

1E:48:EB:F1:44:9D:61:64:B4:52:61:12:BD:92:89:71:C0:85:79:5F...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age
null
alt-svc
h3=":443"; ma=86400
cache-control
🔴 No Cache(no-cache, no-store, must-revalidate)
cf-cache-status
DYNAMIC
cf-edge-cache-control
no-cache, proxy-revalidate
cf-ray🇫🇷 Paris
9fc95937e92bd0b8-CDG
Good Warning Issue

Email Infrastructure

Google Workspace

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt3.aspmx.l.google.com
alt2.aspmx.l.google.com
alt4.aspmx.l.google.com
alt1.aspmx.l.google.com

+1 more

Domain Information

theheart.org

Domain Age
28y 5m

Created

12.12.1997

Expires

11.12.2026

Last Updated

25.01.2026

Registrar

GoDaddy.com, LLC

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.
B
78/100
Mobile Friendly165 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=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Nunito Sans

WCAG AA
64/100
Readability
/30
14/30

32px · LH 1.06

Hierarchy
/20
11/20

1.25x ratio · ✓ H1→H6

WCAG
/25
21/25

4.55:1 min contrast

Performance
/25
18/25

1 font · 6 req

Heading Font

Nunito Sans

Sans40px

Body Font

Nunito Sans

Sans32px

Contrast Ratio

4.55:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Font Family

left aligned
40px
h1
24px
h2
32px
p

✅ Excellent readability: 32px body text is ideal for all devices.

⚠️ Tight line spacing (1.06). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 18/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.5:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

Buy on MyFontsFlesch 18

Color Palette

8 unique colors
13.77:1 AAA Light
#ffffff
Primary· 78.10000000000001%
#2d2d2d
Text· 7.199999999999999%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
MouseflowSMB
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
OneTrustEnterprise

Cookie consent and privacy compliance tools

2

Categories

3

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

Ad Networks

Google Ad Manager

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Scripts & Styles

23 Resources

20
Scripts
3
Styles
8
Async
3
Defer

Top Script Sources

img.medscapestatic.com(11)securepubads.g.doubleclick.net(2)surveys-static-prd.survicate-cdn.com(1)survey.survicate.com(1)cdn.cookielaw.org(1)

Website Identity

theheart.org

amarcus@webmd.net
28 years old
Location detected: 🇨🇦 Canadavia ip
GoDaddy.com, LLC📧 Google Workspace

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Last analyzed: 16 May 2026 at 09:28

Historical Analysis & Change Tracking