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clu-in.org

https://clu-in.org· First analyzed 12 May 2026· Updated 12 May 2026
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clu-in.org
Desktop screenshot of clu-in.org
Mobile screenshot of clu-in.org
Mobile

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Hosting Provider

Environmental Protection Agency

IP Address

161.80.73.147

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Washington, United States

ASN

AS14298

Organization

Environmental Protection Agency

Server

Microsoft IIS

Performance

91

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.8 MB
77 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Libraries

2
jQueryv3.7.1
jQuery UI

Analytics

2
Google Analytics
Google Analytics 4

UI Components

1
Fancybox

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Web Servers

1
Microsoft IISv10.0

SEO Analysis

C60/100
16
8
1
Meta Tags7/15
Content11/12
Headings8/8
Technical15/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
clu-in.orgclu-in.org

Contaminated Site Clean-Up Information (CLU-IN): Providing informat...

CLU-IN - The Hazardous Waste Clean-up Information (CLU-IN) Web Site provides information about innovative treatment technology to the hazardous waste remedia...

Title truncated. Description truncated.
Title Length207 chars

Recommended: 50-60 chars (~1244px / 580px)

Description Length517 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (207 chars, ~1244px). Will be truncated in search results.

9 issues found

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Crawlability

Sitemap

Type: standard

498 URLs

robots.txt

41 rules

Sitemap reference found

Local SEO

Local Search Readiness

6/100
Poor
2 13 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

D44/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
11/25

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
navheader/footer
Text ratio:9%
Words:536
Token eff.:Optimal
Sections/1K:9.3
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary26w
Descriptive Headingsavg 5.2w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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.
A
84/100
12
Passed
2
Critical
0
Warnings
Images & Alt Text
15/20
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
12/15
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
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
17/100
E
356 mg
CO₂e / view
2.8 MB
Page Weight
30%
Cleaner Than
New Visitor
407 mg
vs
Returning (cached)
204 mg
Annual (10K/mo)
42.7 kg
Emission Segments
Data Center
80 mg
Network
86 mg
Device
191 mg
Resource Breakdown
JavaScript
374.1 KB
Images
689.4 KB
CSS
1.7 MB
Fonts
1.9 KB
HTML
43.0 KB
Green Hosting Not Verified
Environmental Protection Agency
8 recommendations
  • •Carbon footprint recommendation preview...
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D

Security Score

56%Poor
Interactive

HTTPS

No WAF

68d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

17.07.2025

Valid Until

19.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.clu-in.orgclu-in.org

SHA-256 Fingerprint

C2:B8:64:5D:CF:51:14:8D:95:02:34:E6:5C:35:D6:17:B2:8C:55:45...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-security-policy
frame-ancestors 'self'; object-src 'self';
content-type
text/html;charset=UTF-8
date
Tue, 12 May 2026 06:43:32 GMT
p3p
policyref='http://clu-in.org/w3c/policy.xml', CP='ALL CURa A...
server
Microsoft-IIS/10.0
strict-transport-security
max-age=31536000; includeSubDomains; preload
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

50

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

Domain Information

clu-in.org

Domain Age
27y 7m

Created

05.10.1998

Expires

04.10.2034

Last Updated

09.10.2024

Registrar

Network Solutions, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

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
74/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Merriweather Web + Source Sans Pro Web

WCAG Partial
66/100
Readability
/30
27/30

17px · LH 1.50

Hierarchy
/20
17/20

1.84x ratio · ✓ H1→H6

WCAG
/25
14/25

4.5:1 min contrast

Performance
/25
8/25

System fonts

Heading Font

Merriweather Web

Sans31px

Body Font

Source Sans Pro Web

Sans17px

Contrast Ratio

4.5:1

2 issues

Reading Comfort

~46 CPL

Optimal (45–75)
31px
h1
31px
h2
17px
p
Minor Second
Scale

✅ Excellent readability: 17px body text is ideal for all devices.

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

✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 4.5:1).

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

GGoogle FontsBuy on MyFontsFlesch 0

Color Palette

14 unique colors
5.6:1 AA Light
#ffffff
Primary· 19.400000000000002%
#6b685a
Secondary· 7.1%
#153058
Accent· 9.3%
#224575
Primary· 9.2%
#dee8eb
Secondary· 7.5%
#3a362f
Secondary· 7%
#897a68
Secondary· 6.3%
#c4bcb2
Secondary· 6.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

27 Resources

20
Scripts
7
Styles
1
Async
0
Defer

Top Script Sources

local(14)ajax.googleapis.com(2)googletagmanager.com(1)ajax.aspnetcdn.com(1)cdn.jsdelivr.net(1)

Website Identity

clu-in.org

27 years old
Location detected: 🇺🇸 United Statesvia ip
Network Solutions, LLCen

Social Profiles

FacebookX (Twitter)

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Last analyzed: 12 May 2026 at 06:44

Historical Analysis & Change Tracking