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hvac8.com

https://hvac8.com· First analyzed 15 May 2026· Updated 15 May 2026
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hvac8.com
Desktop screenshot of hvac8.com
Mobile screenshot of hvac8.com
Mobile

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Hosting Provider

cloudflare.com

IP Address

104.21.41.63

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

damon.ns.cloudflare.com.elsa.ns.cloudflare.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
794 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
137 KB
20 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

4 Technologies Detected

Libraries

1

UI Components

1

CSS Frameworks

1

Web Servers

1

SEO Analysis

D53/100
16
11
1
Meta Tags5/15
Content11/12
Headings3/8
Technical15/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
H
hvac8.comhvac8.com

球探比分_足球比分_即时比分_比分直播_球探足球比分

球探比分提供足球比分,即时比分,比分直播,篮球比分查询,覆盖全世界大小联赛杯赛足球直播 篮球NBA直播,是球迷必备体育网站!

Title Length26 chars

Recommended: 50-60 chars (~161px / 580px)

Description Length62 chars

Recommended: 120-160 chars

Issues (1)

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

Crawlability

Sitemap

Type: index

102 URLs

102 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

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.
18/25
Schema Data
0/25
Citation
6/25

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.txtvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
nav
Text ratio:9%
Words:909
Token eff.:Optimal
Sections/1K:176
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 1.2w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
58/100
8
Passed
5
Critical
2
Warnings
Images & Alt Text
15/20
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
3/15
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
5/15
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.
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.
77/100
A+
14 mg
CO₂e / view
137.4 KB
Page Weight
95%
Cleaner Than
New Visitor
16 mg
vs
Returning (cached)
8 mg
Annual (10K/mo)
1.7 kg
Emission Segments
Data Center
<0.001 g
Network
4 mg
Device
9 mg
Resource Breakdown
JavaScript
97.6 KB
Images
4.3 KB
CSS
17.4 KB
HTML
16.7 KB
Other
1.4 KB
Green Hosting Verified
Cloudflare
GWF Verified
3 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

0%Critical
Critical / Transactional

HTTPS

No WAF

148d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

WoTrus CA Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.03.2026

Valid Until

10.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.007666.com007666.com

SHA-256 Fingerprint

61:0B:AE:1E:43:D0:7F:39:E9:8C:2F:34:46:BC:72:CE:3D:FF:57:62...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

cache-control
🟡 60s(public, max-age=60, s-maxage=300, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Fri, 15 May 2026 13:07:40 GMT
server
nginx
strict-transport-security
max-age=31536000; includeSubDomains; preload
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

hvac8.com

Domain Age
18y 2m

Created

10.03.2008

Expires

10.03.2027

Last Updated

15.04.2026

Registrar

GoDaddy.com, LLC

DNSSEC
Not Enabled

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
42/100
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.
Viewport
width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no
4 recommendations
  • Mobile compatibility recommendation preview...

Typography & Readability

Times New Roman

WCAG Partial
50/100
Readability
/30
12/30

12px · LH --

Hierarchy
/20
7/20
WCAG
/25
17/25

2.04:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Times New Roman

Serif

Body Font

Times New Roman

Serif12px

Contrast Ratio

2.04:1

3 issues

Reading Comfort

Single Font Family

left aligned
15px
h2

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 2.0:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Color Palette

9 unique colors
2.93:1 Fail Light
#ffffff
Background· 60.00000000000001%
#9c968e
Other· 4.4%
#326aed
Primary· 8.3%
#0f212a
Secondary· 6.9%
#ece9dd
Secondary· 4.9%
#98bcbd
Secondary· 4.9%
#d7d8b7
Secondary· 4.6%
#3c4769
Secondary· 4.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1

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

10 Resources

7
Scripts
3
Styles
0
Async
0
Defer

Top Script Sources

local(4)007666.com(2)hm.baidu.com(1)

Website Identity

hvac8.com

18 years old
Location detected: 🇨🇦 Canadavia ip
GoDaddy.com, LLCzh-CN

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Last analyzed: 15 May 2026 at 13:08

Historical Analysis & Change Tracking