hrsonline.org

https://hrsonline.org· First analyzed 08 May 2026· Updated 08 May 2026

Export

hrsonline.org

Mobile

Sponsored

Hosting Provider

Kinsta

cloudflare.com

IP Address

172.67.68.134

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

harlee.ns.cloudflare.com.seamus.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

12.4 MB

94 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

HRS Child Themev1.0Custom

by Yoko Co

Technology Stack

18 Technologies Detected

Plugins

Beaver Builder

Popup Maker Yoko Core Yok0X Sso Searchwp

Analytics

Libraries

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Email Marketing

CDN

Customer Support

SEO Analysis

B77/100

Meta Tags15/15

Content3/12

Headings8/8

Technical23/25

E-E-A-T3/7

Images4/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile3/4

Indexability3/3

hrsonline.orghrsonline.org

Heart Rhythm Society – Advancing Electrophysiology Worldwide

The Heart Rhythm Society (HRS) is the international leader in science, education, and advocacy for cardiac arrhythmia professionals and patients.

Title Length60 chars

Recommended: 50-60 chars (~365px / 580px)

Description Length145 chars

Recommended: 120-160 chars

Issues (1)

• Very thin content (7 words). Search engines need substantial content for ranking.

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

29/100

Needs Work

7 10 2

Sponsored

AI & LLM Readiness

F39/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

11/25

Citation

7/25

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:4%

Words:3,780

Token eff.:Poor Structure

Structured Data

5 JSON-LD

Article×1.2Person×1.3microdataOrganization×1.1microdataWebSiteLocalBusiness×1.1(min)Event(min)

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card3/3

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.

68/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

6/20

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

11/15

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

ARIA & Roles

1/15

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.

35/100

1.28 g

CO₂e / view

12.4 MB

Page Weight

Cleaner Than

New Visitor

1.46 g

Returning (cached)

731 mg

Annual (10K/mo)

153.6 kg

Emission Segments

Data Center

63 mg

Network

376 mg

Device

841 mg

Resource Breakdown

JavaScript

733.2 KB

Images

859.6 KB

CSS

10.6 MB

Fonts

167.1 KB

HTML

74.1 KB

Other

600 B

Green Hosting Verified

Cloudflare

GWF Verified

9 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

71%Good

Interactive

HTTPS

WAF

45d

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

Valid From

25.03.2026

Valid Until

23.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

hrsonline.org*.hrsonline.org

SHA-256 Fingerprint

20:F0:16:F2:90:C3:21:FA:32:97:39:45:73:5F:72:95:0B:74:6F:F9...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cf-cache-status

DYNAMIC

cf-ray🇺🇸 Dallas

9f88a23ced206c28-DFW

content-encoding

⚡ Brotli(br)

content-security-policy

frame-ancestors 'self';

content-type

text/html; charset=UTF-8

date

Fri, 08 May 2026 12:58:03 GMT

Good Warning Issue

Email Infrastructure

Barracuda

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

d344455b.ess.barracudanetworks.com

d344455a.ess.barracudanetworks.com

Domain Information

hrsonline.org

Domain Age

22y 6m

Created

23.10.2003

Expires

23.10.2026

Last Updated

16.04.2025

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Legitimate interest basis 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.

74/100

Mobile Friendly445 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

Work Sans + Figtree

WCAG Partial

73/100

Readability

/30

20/30

18px · LH 1.50

Hierarchy

/20

18/20

5x ratio · ✓ H1→H6

WCAG

/25

17/25

1:1 min contrast

Performance

/25

18/25

2 fonts · 6 req

Heading Font

Work Sans

Sans90px

Body Font

Figtree

Sans18px

Contrast Ratio

1:1

13 issues

Reading Comfort

~36 CPL

Narrow lines

90px

44px

24px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 13 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 5.0x larger than body text.

GGoogle Fonts Buy on MyFontsFlesch 36

Color Palette

8 unique colors

Light

#ffffff

Background· 68.8%

#0f34b7

Primary· 6.1%

#7f9ec2

Secondary· 5.3%

#b23c68

Secondary· 4.6%

#dfe3e7

Secondary· 4.5%

#cdbcc0

Secondary· 3.8%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

HotjarMid-Market

User behavior and product analytics

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

hrsonline.org(5)local(4)googletagmanager.com(3)consent.cookiebot.com(2)youtube.com(2)

Website Identity

Home

LocalBusiness

Heart Rhythm Society

[email protected]

202643400

www.hrsonline.org

22 years old

Location detected: 🇨🇦 Canadavia ip

Network Solutions, LLC📧 Barracudaen-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 08 May 2026 at 12:58

Historical Analysis & Change Tracking