heartfailurematters.org

https://heartfailurematters.org· First analyzed 17 May 2026· Updated 17 May 2026

Export

Mobile

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Hosting Provider

Gandi

gandi.net

IP Address

217.70.184.55

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Paris, France

ASN

AS29169

Organization

Gandi France L/B Services

Server

Apache

Nameservers

ns-44-c.gandi.net.ns-151-b.gandi.net.ns-1-a.gandi.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.3 s10%

Speed Index

1.7 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

102 KB

82 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

WordPressv6.7.2

Infrastructure

Hosting

Gandi

Technology Stack

17 Technologies Detected

Plugins

UI Components

Owl Carousel Lightbox

CSS Frameworks

Analytics

Libraries

Icon Libraries

Fonts

Tag Managers

Social

Web Servers

Security

SEO Analysis

A86/100

Meta Tags15/15

Content11/12

Headings8/8

Technical25/25

E-E-A-T2/7

Images4/7

Links2/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

heartfailurematters.orgheartfailurematters.org

Heart Failure Matters | Symptoms, Treatment & Living Well

Practical information on heart failure for patients, families and caregivers from the Heart Failure Association of the European Society of Cardiology.

Title Length57 chars

Recommended: 50-60 chars (~349px / 580px)

Description Length150 chars

Recommended: 120-160 chars

Issues (0)

5 issues found

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Crawlability

Sitemap

Type: index

7 URLs

7 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

25/100

Needs Work

7 11

Sponsored

AI & LLM Readiness

D51/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

8/25

Citation

15/25

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:2,169

Token eff.:Optimal

Sections/1K:3.2

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary28w

Descriptive Headingsavg 3.9w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

72/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

11/20

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

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

7/15

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

2 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.

68/100

A+

10 mg

CO₂e / view

102.5 KB

Page Weight

95%

Cleaner Than

New Visitor

12 mg

Returning (cached)

6 mg

Annual (10K/mo)

1.2 kg

Emission Segments

Data Center

<0.001 g

Network

3 mg

Device

7 mg

Resource Breakdown

JavaScript

39.4 KB

Images

7.5 KB

CSS

30.0 KB

Fonts

2.3 KB

HTML

23.4 KB

Green Hosting Verified

Gandi

Provider Match

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

64d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Gandi

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

12.08.2025

Valid Until

20.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.heartfailurematters.orgheartfailurematters.org

SHA-256 Fingerprint

4A:6C:B5:09:E8:F8:1C:20:4A:22:48:5F:80:93:9F:95:6E:88:DA:4B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 0s(max-age=0)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-length

23648

content-type

text/html; charset=UTF-8

date

Sun, 17 May 2026 14:11:24 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

heartfailurematters.org

Domain Age

19y 3m

Created

09.02.2007

Expires

09.02.2027

Last Updated

16.12.2025

Registrar

Gandi SAS

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

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.

60/100

Mobile Friendly2 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, maximum-scale=1.0, user-scalable=0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans

WCAG AAA

80/100

Readability

/30

18/30

15px · LH 1.60

Hierarchy

/20

19/20

2.67x ratio · ✓ H1→H6

WCAG

/25

23/25

7.17:1 min contrast

Performance

/25

20/25

1 font · 2 req

Heading Font

Open Sans

Sans40px

Body Font

Open Sans

Sans15px

Contrast Ratio

7.17:1

WCAG AAA (≥7:1)

Reading Comfort

~43 CPL

Narrow lines

40px

22px

40px

24px

15px

Minor Second

Scale

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 6/100. Consider shorter sentences and simpler words.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.2:1).

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

✅ Strong hierarchy: Headlines are 2.7x larger than body text.

GGoogle FontsFlesch 6

Color Palette

9 unique colors

Light

#ffffff

Background· 25.3%

#e7ecf2

Primary· 39.300000000000004%

#858353

Secondary· 6.4%

#716540

Secondary· 5.7%

#702a2e

Secondary· 5.2%

#a59367

Secondary· 5.1%

#d3dcde

Secondary· 5.1%

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Social Media

ShareThisFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

heartfailurematters.org(4)googletagmanager.com(3)cdnjs.cloudflare.com(3)cdn.cookielaw.org(2)cdn.jsdelivr.net(2)

Website Identity