nadca.com

https://nadca.com· First analyzed 06 May 2026· Updated 06 May 2026

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nadca.com

Mobile

Sponsored

Hosting Provider

Atlantic.net, Inc.

IP Address

69.28.92.135

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Orlando, United States

ASN

AS6364

Organization

Atlantic.net, Inc.

Server

Nginx

Nameservers

ns89.worldnic.com.ns90.worldnic.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

883 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.8 MB

68 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Atlantic.net, Inc.

Technology Stack

11 Technologies Detected

Fonts

Google Fonts Adobe Fonts (Typekit)Adobe Fonts

CSS Frameworks

Analytics

Icon Libraries

Tag Managers

Web Servers

Languages

SEO Analysis

C67/100

Meta Tags13/15

Content11/12

Headings3/8

Technical18/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social1/5

Freshness0/4

Mobile4/4

Indexability3/3

nadca.comnadca.com

National Air Duct Cleaners Association (NADCA)

NADCA is the global trade association representing the HVAC inspection, cleaning and restoration industry.

Title Length46 chars

Recommended: 50-60 chars (~272px / 580px)

Description Length106 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

619 URLs

robots.txt

45 rules

Local SEO

Local Search Readiness

18/100

Poor

5 10 2

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

Sponsored

AI & LLM Readiness

D40/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

0/25

Citation

12/25

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:8%

Words:1,023

Token eff.:Optimal

Sections/1K:13.7

Depth:2/5

Structured Data

RDFa

Citation Readiness

Opening Summary17w

Descriptive Headingsavg 2.6w

Canonical URL

Open Graph1/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

73/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

0/15

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

12/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•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.

36/100

231 mg

CO₂e / view

1.8 MB

Page Weight

50%

Cleaner Than

New Visitor

265 mg

Returning (cached)

132 mg

Annual (10K/mo)

27.8 kg

Emission Segments

Data Center

52 mg

Network

56 mg

Device

124 mg

Resource Breakdown

JavaScript

139.0 KB

Images

24.4 KB

CSS

1.6 MB

HTML

69.0 KB

Green Hosting Not Verified

Atlantic.net, Inc.

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

5%Critical

Critical / Transactional

HTTPS

No WAF

40d

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/1.1

Valid From

17.03.2026

Valid Until

15.06.2026

Subject Alternative Names (1)

nadca.com

SHA-256 Fingerprint

38:2D:CD:81:DD:CB:B0:15:3D:46:61:25:00:0C:9D:67:88:1D:E1:B0...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 1800s(max-age=1800, public)

connection

keep-alive

content-security-policy

frame-ancestors https://breathingclean.com https://*.breathi...

content-type

text/html; charset=UTF-8

content-language

date

Wed, 06 May 2026 05:38:11 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx2.googlemail.com

aspmx3.googlemail.com

aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

nadca.com

Domain Age

30y 1m

Created

19.03.1996

Expires

20.03.2027

Last Updated

13.02.2026

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

70/100

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, viewport-fit=cover

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

rockwell + canada-type-gibson

WCAG Partial

61/100

Readability

/30

23/30

20px · LH 1.40

Hierarchy

/20

6/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

16/25

2 fonts

Heading Font

rockwell

Serif

Body Font

canada-type-gibson

Sans20px

Contrast Ratio

1:1

14 issues

Reading Comfort

~37 CPL

Narrow lines

76px

26px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 30/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 2 font families keeps load times fast.

AAdobe Fonts Buy on MyFontsFlesch 31

Color Palette

7 unique colors

Light

#ffffff

Background· 33.2%

#001b36

Primary· 37.599999999999994%

#99a5af

Secondary· 5.5%

#3f5268

Secondary· 2.1%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(9)googletagmanager.com(2)adserver.associationheadquarters.com(2)cdnjs.cloudflare.com(2)translate.googleapis.com(1)

Website Identity

nadca.com

855-466-2322

30 years old

Location detected: 🇺🇸 United Statesvia ip

Network Solutions, LLC📧 Google Workspaceen

Social Profiles

Facebook X (Twitter)LinkedIn YouTube

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Last analyzed: 06 May 2026 at 05:38

Historical Analysis & Change Tracking