aats.org

https://aats.org· First analyzed 30 May 2026· Updated 30 May 2026

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aats.org

Mobile

Sponsored

Hosting Provider

DigitalOcean

digitalocean.com

IP Address

164.90.159.216

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Santa Clara, United States

ASN

AS14061

Organization

DigitalOcean, LLC

Server

Nginx

CDN

Azure Cdn

Nameservers

ns1-09.azure-dns.com.ns2-09.azure-dns.net.ns3-09.azure-dns.org.ns4-09.azure-dns.info.

Performance

Core Web Vitals

Weight

First Contentful Paint

744 ms10%

Speed Index

967 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.2 MB

32 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

HubSpot CMS

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

CSS Frameworks

Fonts

Tag Managers

Marketing

Web Servers

SEO Analysis

A83/100

Meta Tags14/15

Content11/12

Headings8/8

Technical24/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

aats.orgaats.org

Homepage | The American Association for Thoracic Surgery | AATS

At the Forefront of Cardiothoracic Surgery, AATS members have a proven record of distinction within the specialty and have made significant contributions…

Title Length63 chars

Recommended: 50-60 chars (~383px / 580px)

Description Length154 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (39/39) — critical for accessibility and SEO

3 issues found

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Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

7 rules

Sitemap reference found

Local SEO

Local Search Readiness

24/100

Needs Work

6 12 2

Sponsored

AI & LLM Readiness

D52/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

5/25

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:7%

Words:1,171

Token eff.:Optimal

Sections/1K:33.3

Structured Data

4 JSON-LD

Organization×1.1(min)LocalBusiness×1.1(min)BreadcrumbList

sameAs entity links

Citation Readiness

Opening Summary22w

Descriptive Headingsavg 1.5w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

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.

87/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

20/20

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

13/15

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.

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.

69/100

119 mg

CO₂e / view

1.2 MB

Page Weight

70%

Cleaner Than

New Visitor

136 mg

Returning (cached)

68 mg

Annual (10K/mo)

14.3 kg

Emission Segments

Data Center

6 mg

Network

35 mg

Device

78 mg

Resource Breakdown

JavaScript

219.0 KB

Images

778.0 KB

CSS

168.6 KB

Fonts

2.1 KB

HTML

13.5 KB

Green Hosting Verified

DigitalOcean

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

66%Fair

Interactive

HTTPS

No WAF

51d

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

22.04.2026

Valid Until

21.07.2026

Subject Alternative Names (4)

aats.orgevents.aats.orgwww.aats.orgwww.aatsfoundation.org

SHA-256 Fingerprint

4D:DC:D5:78:41:35:96:56:48:79:0A:54:B8:C4:81:53:C5:C1:1B:17...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

none

access-control-allow-origin

cache-control

🟡 0s(max-age=0)

content-encoding

📦 Gzip(gzip)

content-length

13568

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx1-us1.ppe-hosted.com

mx2-us1.ppe-hosted.com

Domain Information

aats.org

Domain Age

29y 11m

Created

25.06.1996

Expires

24.06.2027

Last Updated

16.05.2026

Registrar

Tucows Domains Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

69/100

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

Helvetica

WCAG Partial

71/100

Readability

/30

23/30

18px · LH 1.67

Hierarchy

/20

17/20

2.5x ratio · ✓ H1→H6

WCAG

/25

15/25

1:1 min contrast

Performance

/25

16/25

System fonts

Heading Font

Helvetica

Sans45px

Body Font

Helvetica

Sans18px

Contrast Ratio

1:1

2 issues

Reading Comfort

~32 CPL

Narrow lines

45px

60px

30px

18px

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

⚠️ Hard to read: Flesch score 31/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 2 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 2.5x larger than body text.

✅ System fonts: Zero font loading delay — best possible LCP impact.

GGoogle Fonts Buy on MyFontsFlesch 31

Color Palette

10 unique colors

Light

#ffffff

Primary· 7.8%

#102541

Accent· 35%

#014fb2

Accent· 21.4%

#6c77bc

Secondary· 9.6%

#0a2e69

Accent· 8.5%

#07162d

Accent· 5.6%

#9eacd4

Secondary· 3.1%

#284780

Accent· 3%

Business & Marketing Stack

4 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(2)polo.feathr.co(2)js.hs-banner.com(1)js.hs-analytics.net(1)google-analytics.com(1)

Website Identity

The American Association for Thoracic Surgery | AATS

LocalBusiness

Breadcrumbs list

29 years old

Location detected: 🇺🇸 United Statesvia ip

Tucows Domains Inc.en

Social Profiles

X (Twitter)Instagram LinkedIn

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Last analyzed: 30 May 2026 at 10:52

Historical Analysis & Change Tracking