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lennox.com

https://lennox.com· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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lennox.com
Desktop screenshot of lennox.com
Mobile screenshot of lennox.com
Mobile

Sponsored

Hosting Provider

Lennox International Inc

IP Address

205.145.200.237

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Richardson, United States

ASN

AS15106

Organization

Lennox International Inc

CDN

CDN

Nameservers

rchdnslep01.lennoxintl.com.dbkdnslep01.lennoxintl.com.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
851 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
12.3 MB
71 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Lennox International Inc
CDN
CDN

Technology Stack

8 Technologies Detected

UI Components

2
Slick CarouselFancybox

CSS Frameworks

2
Bootstrap
Tailwind CSS

Libraries

1
jQueryv3.7.1

Fonts

1
Google Fonts

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

SEO Analysis

A81/100
23
5
0
Meta Tags14/15
Content12/12
Headings5/8
Technical23/25
E-E-A-T2/7
Images4/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
L
lennox.comlennox.com

Air Conditioning and Heating Solutions | Lennox

Explore Lennox comfort and energy-efficient solutions for heating and cooling your space. Upgrade your home's HVAC system with industry-leading solutions.

Title Length47 chars

Recommended: 50-60 chars (~273px / 580px)

Description Length154 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    4,572 URLs

    robots.txt

    9 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    24/100
    Needs Work
    7 11

    Sponsored

    AI & LLM Readiness

    D49/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    3/25
    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
    nav
    Text ratio:10%
    Words:2,234
    Token eff.:Optimal
    Sections/1K:9.8
    Depth:1/5

    Structured Data

    1 JSON-LD
    Organization×1.1
    sameAs entity links

    Citation Readiness

    Opening Summary55w
    Descriptive Headingsavg 5.5w
    Canonical URL
    Open Graph2/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (7)
    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.
    B
    76/100
    11
    Passed
    3
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    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
    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
    2/15
    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.
    22/100
    F
    1.55 g
    CO₂e / view
    12.3 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    1.77 g
    vs
    Returning (cached)
    887 mg
    Annual (10K/mo)
    186.3 kg
    Emission Segments
    Data Center
    347 mg
    Network
    373 mg
    Device
    833 mg
    Resource Breakdown
    JavaScript
    84.8 KB
    Images
    11.0 MB
    CSS
    1.1 MB
    HTML
    17.4 KB
    Green Hosting Not Verified
    Lennox International Inc
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    56%Poor
    Interactive

    HTTPS

    No WAF

    71d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    DigiCert Inc

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    08.01.2026

    Valid Until

    08.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    www.lennox.com

    SHA-256 Fingerprint

    86:0B:72:65:11:74:BC:B4:BE:C6:EF:82:18:B2:5A:21:18:98:86:AF...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 0s(max-age=0)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html;charset=UTF-8
    date
    Tue, 28 Apr 2026 07:54:55 GMT
    strict-transport-security
    max-age=31536000;includeSubDomains;
    vary
    accept-encoding
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    lennox-com.mail.protection.outlook.com

    Domain Information

    lennox.com

    Domain Age
    29 years

    Created

    25.04.1997

    Expires

    26.04.2027

    Last Updated

    22.04.2026

    Registrar

    CSC Corporate Domains, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    OneTrust

    Cookie Consent Banner
    OneTrust
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: OneTrust
    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.
    D
    59/100
    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, maximum-scale=5
    3 recommendations
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Open Sans

    WCAG AAA
    69/100
    Readability
    /30
    18/30

    16px · LH 2.00

    Hierarchy
    /20
    14/20

    2.62x ratio

    WCAG
    /25
    21/25

    11.86:1 min contrast

    Performance
    /25
    16/25

    2 fonts

    Heading Font

    Open Sans

    Sans42px

    Body Font

    Open Sans

    Sans16px

    Contrast Ratio

    11.86:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~115 CPL

    Too wide
    42px
    h1
    38px
    h2
    24px
    h3
    16px
    p

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

    ⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

    ❌ Very long lines: ~115 chars/line causes eye strain. Add max-width constraint.

    ⚠️ Hard to read: Flesch score 32/100. Simplify sentences for wider reach.

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 11.9:1).

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

    Buy on MyFontsFlesch 33

    Color Palette

    5 unique colors
    Light
    #efefef
    Background· 59.199999999999996%
    #d6e2eb
    Primary· 10.2%
    #725b50
    Secondary· 9.2%
    #c8c4b9
    Secondary· 9.2%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    OneTrustEnterprise

    Cookie consent and privacy compliance tools

    2

    Categories

    3

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    16 Resources

    10
    Scripts
    6
    Styles
    1
    Async
    5
    Defer

    Top Script Sources

    cdn.jsdelivr.net(4)shared.lennox.com(2)googletagmanager.com(1)code.jquery.com(1)onelink-edge.com(1)

    Website Identity

    Lennox

    Lennox

    Organization
    www.lennox.com/
    29 years old
    Location detected: 🇺🇸 United Statesvia ip
    CSC Corporate Domains, Inc.📧 Microsoft 365en

    Sponsored

    Last analyzed: 28 Apr 2026 at 07:55

    Historical Analysis & Change Tracking

    lennox.com Technology Stack - Built With jQuery, Slick Carousel, Fancybox, Bootstrap, Tailwind CSS | StackOptic | StackOptic