StackOptic
Back to Search
aapm.org favicon

aapm.org

https://aapm.org· First analyzed 02 May 2026· Updated 02 May 2026
Export
aapm.org
Desktop screenshot of aapm.org
Mobile screenshot of aapm.org
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

52.23.39.171

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Server

Microsoft IIS

Nameservers

ns-786.awsdns-34.net.ns-128.awsdns-16.com.ns-1440.awsdns-52.org.ns-1601.awsdns-08.co.uk.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
885 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
616 KB
80 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Amazon Web Services (AWS)

Technology Stack

6 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Tag Managers

1
Google Tag Manager

Advertising

1
LinkedIn Ads

Web Servers

1
Microsoft IISv10.0

SEO Analysis

D50/100
11
12
2
Meta Tags13/15
Content8/12
Headings8/8
Technical6/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
A
aapm.orgaapm.org

AAPM: The American Association of Physicists in Medicine

The American Association of Physicists in Medicine is a member society concerned with the topics of medical physics, radiation oncology, imaging physics, hea...

Description truncated.
Title Length56 chars

Recommended: 50-60 chars (~335px / 580px)

Description Length281 chars

Recommended: 120-160 chars

Issues (2)

  • • Most images missing alt text (23/34) — critical for accessibility and SEO
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

14 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

19 rules

Local SEO

Local Search Readiness

7/100
Poor
3 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F38/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
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
blockquotescode blocks
Text ratio:9%
Words:332
Token eff.:Optimal
Sections/1K:6
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary11w
Descriptive Headingsavg 5.5w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
D
56/100
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
11/20
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
9/15
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.
3 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.
57/100
A
62 mg
CO₂e / view
616.3 KB
Page Weight
80%
Cleaner Than
New Visitor
71 mg
vs
Returning (cached)
36 mg
Annual (10K/mo)
7.5 kg
Emission Segments
Data Center
3 mg
Network
18 mg
Device
41 mg
Resource Breakdown
JavaScript
225.0 KB
Images
340.0 KB
CSS
44.6 KB
HTML
6.7 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

66%Fair
Interactive

HTTPS

No WAF

90d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

02.07.2025

Valid Until

31.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.aapm.orgaapm.org

SHA-256 Fingerprint

0A:74:10:36:01:F1:CF:7B:94:64:09:87:26:49:68:2D:46:EE:50:CA...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟣 Private(private)
content-encoding
📦 Gzip(gzip)
content-length
6556
content-security-policy
upgrade-insecure-requests
content-type
text/html
date
Sat, 02 May 2026 01:12:41 GMT
Good Warning Issue

Email Infrastructure

Google Workspace

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

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

+1 more

Domain Information

aapm.org

Domain Age
32y 6m

Created

10.11.1993

Expires

09.11.2028

Last Updated

16.05.2025

Registrar

Advanced Internet Technologies, Inc. (AIT)

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
F
36/100
Not 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.
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Century Gothic

WCAG Partial
56/100
Readability
/30
14/30

13px · LH 1.50

Hierarchy
/20
15/20

1.46x ratio · ✓ H1→H6

WCAG
/25
14/25

1:1 min contrast

Performance
/25
13/25

2 fonts · 1 req

Heading Font

Century Gothic

Sans19px

Body Font

Century Gothic

Sans13px

Contrast Ratio

1:1

9 issues

Reading Comfort

~95 CPL

Wide lines
19px
h1
16px
h2
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

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

⚠️ Wide lines: ~95 chars/line. Use max-width: 65ch for comfortable reading.

❌ Very complex text: Flesch score 19/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

Buy on MyFontsFlesch 19

Color Palette

7 unique colors
3.68:1 AA Large Light
#ffffff
Background· 45.7%
#828687
Other· 29.8%
#1c2337
Primary· 5.4%
#dce2e4
Secondary· 5.4%
#4a6d89
Secondary· 4.6%
#43a2bd
Secondary· 3.3%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

3
Facebook PixelMid-Market
LinkedIn AdsEnterprise
Reddit PixelMid-Market

Ad platforms and retargeting pixels

2

Categories

5

Total Tools

1

Enterprise

2

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

Sponsored

Scripts & Styles

20 Resources

16
Scripts
4
Styles
13
Async
0
Defer

Top Script Sources

googletagmanager.com(4)servedbyadbutler.com(3)connect.facebook.net(2)google-analytics.com(2)local(2)

Website Identity

aapm.org

helpdesk@aapm.org
32 years old
Location detected: 🇺🇸 United Statesvia ip
Advanced Internet Technologies, Inc. (AIT)📧 Google Workspace

Sponsored

Last analyzed: 02 May 2026 at 01:13

Historical Analysis & Change Tracking