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aceee.org

https://aceee.org· First analyzed 25 Apr 2026· Updated 25 Apr 2026
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aceee.org
Desktop screenshot of aceee.org
Mobile screenshot of aceee.org
Mobile

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Hosting Provider

pantheon.io

IP Address

23.185.0.3

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

Pantheon

Server

Nginx

CDN

Fastly

Nameservers

ns4.worldnic.com.ns3.worldnic.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
298 ms10%
Speed Index
387 ms10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.6 MB
95 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

11 Technologies Detected

SEO Analysis

B73/100
19
8
1
Meta Tags15/15
Content10/12
Headings5/8
Technical19/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social3/5
Freshness2/4
Mobile3/4
Indexability3/3
A
aceee.orgaceee.org

ACEEE | American Council for an Energy-Efficient Economy

ACEEE believes in leveraging energy efficiency to enhance economic prosperity, energy security, and environmental protection for all Americans.

Title Length56 chars

Recommended: 50-60 chars (~339px / 580px)

Description Length143 chars

Recommended: 120-160 chars

Issues (1)

  • Most images missing alt text (24/29) — critical for accessibility and SEO

Crawlability

Sitemap

Type: standard

3,078 URLs

robots.txt

53 rules

Local SEO

Local Search Readiness

11/100
Poor
3 12 2

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

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AI & LLM Readiness

D42/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
0/25
Citation
14/25

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
nav
Text ratio:3%
Words:1,115
Token eff.:Optimal
Sections/1K:1.8
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary210w
Descriptive Headingsavg 2.8w
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
D
57/100
11
Passed
6
Critical
4
Warnings
Images & Alt Text
10/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
2/15
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
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.
4 recommendations
  • Accessibility recommendation preview...

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.
27/100
F
450 mg
CO₂e / view
3.6 MB
Page Weight
15%
Cleaner Than
New Visitor
514 mg
vs
Returning (cached)
257 mg
Annual (10K/mo)
54.0 kg
Emission Segments
Data Center
101 mg
Network
108 mg
Device
242 mg
Resource Breakdown
JavaScript
487.1 KB
Images
2.3 MB
CSS
723.8 KB
HTML
21.1 KB
Other
61.9 KB
Green Hosting Not Verified
Pantheon
6 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

15%Critical
Critical / Transactional

HTTPS

No WAF

35d

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

01.03.2026

Valid Until

30.05.2026

Subject Alternative Names (2)

aceee.orgwww.aceee.org

SHA-256 Fingerprint

35:2B:1E:D3:CF:1A:E3:A5:1D:63:91:B8:81:58:5D:1E:CF:93:56:30...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

accept-ranges
bytes
age
2638
cache-control
🟡 1 Hours(max-age=3600, public)
content-encoding
📦 Gzip(gzip)
content-language
en
content-length
21265
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

aceee-org.mail.protection.outlook.com

Domain Information

aceee.org

Domain Age
28y 10m

Created

13.06.1997

Expires

12.06.2031

Last Updated

18.04.2026

Registrar

Network Solutions, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked

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
76/100
Mobile Friendly28 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...

Typography & Readability

Ubuntu + Open Sans

WCAG Partial
69/100
Readability
/30
23/30

16px · LH 1.50

Hierarchy
/20
16/20

3.5x ratio

WCAG
/25
14/25

1:1 min contrast

Performance
/25
16/25

2 fonts · 8 req

Heading Font

Ubuntu

Sans56px

Body Font

Open Sans

Sans16px

Contrast Ratio

1:1

4 issues

Reading Comfort

~39 CPL

Narrow lines
56px
h1
35px
h2
22px
h4
16px
p
Minor Second
Scale

✅ Excellent readability: 16px body text is ideal for all devices.

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

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

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 3.5x larger than body text.

Color Palette

9 unique colors
2.77:1 Fail Dark
#6b7578
Other· 8.1%
#2e3132
Other· 7.8%
#39454c
Primary· 27.9%
#77b6d9
Accent· 21.099999999999998%
#897d6a
Secondary· 10.1%
#595248
Secondary· 9.1%
#755844
Secondary· 5.4%
#d8e4ea
Secondary· 4.6%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2

User behavior and product analytics

Advertising

1

Ad platforms and retargeting pixels

2

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

24 Resources

20
Scripts
4
Styles
8
Async
2
Defer

Top Script Sources

local(6)googletagmanager.com(4)static.addtoany.com(3)connect.facebook.net(2)cdn.donately.com(2)

Website Identity

aceee.org

28 years old
Location detected: 🇺🇸 United Statesvia ip
Network Solutions, LLC📧 Microsoft 365en

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Last analyzed: 25 Apr 2026 at 13:53

Historical Analysis & Change Tracking