4specs.com

https://4specs.com· First analyzed 03 Jun 2026· Updated 03 Jun 2026

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4specs.com

Mobile

Sponsored

Hosting Provider

pair Networks

IP Address

216.92.45.191

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Pittsburgh, United States

ASN

AS7859

Organization

pair Networks

Server

Apache

Nameservers

ns516.pair.com.ns00.ns0.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

431 ms10%

Speed Index

560 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

12 KB

4 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

pair Networks

Technology Stack

1 Technologies Detected

Web Servers

Apache

SEO Analysis

D51/100

Meta Tags9/15

Content8/12

Headings0/8

Technical14/25

E-E-A-T0/7

Images4/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

4specs.com4specs.com

4specs.com - Your Specified Construction Products Architectural Lib...

CSI-formatted construction specifications, BIM Objects CAD details plus identify commercial building product manufacturers near your project.

Title truncated.

Title Length71 chars

Recommended: 50-60 chars (~427px / 580px)

Description Length141 chars

Recommended: 120-160 chars

Issues (2)

• Title is too long (71 chars, ~427px). Will be truncated in search results.
• Missing H1 tag — every page should have exactly one H1

10 issues found

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Crawlability

Sitemap

Type: standard

947 URLs

robots.txt

17 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

F36/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

0/25

Citation

5/25

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

blockquotes

Text ratio:26%

Words:381

Token eff.:Optimal

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary13w

Descriptive Headings

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.

61/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

6/20

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

Forms & Inputs

10/15

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

1/15

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

3 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.

76/100

A+

1 mg

CO₂e / view

11.5 KB

Page Weight

95%

Cleaner Than

New Visitor

1 mg

Returning (cached)

<0.001 g

Annual (10K/mo)

144 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

<0.001 g

Resource Breakdown

Images

4.8 KB

CSS

3.1 KB

HTML

3.5 KB

Green Hosting Verified

pair Networks

Provider Match

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

140d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

20.09.2025

Valid Until

21.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

4specs.comwww.4specs.com

SHA-256 Fingerprint

EB:5F:FB:E4:79:F3:AF:F9:00:5D:A0:1F:62:9F:3A:8B:24:21:85:71...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 12 Hours(max-age=43200)

content-encoding

📦 Gzip(gzip)

content-length

3315

content-type

text/html; charset=utf-8

date

Wed, 03 Jun 2026 06:05:06 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail1.g14.pair.com

Domain Information

4specs.com

Domain Age

27y 2m

Created

18.03.1999

Expires

18.03.2027

Last Updated

27.01.2026

Registrar

pair Networks, Inc. d/b/a pair Domains

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.

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=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Arial

WCAG AAA

71/100

Readability

/30

17/30

15px · LH 1.35

Hierarchy

/20

10/20

WCAG

/25

24/25

9.4:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Arial

Body Font

Arial

Sans15px

Contrast Ratio

9.4:1

WCAG AAA (≥7:1)

Reading Comfort

~35 CPL

Narrow lines

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Tight line spacing (1.35). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 14/100. Consider shorter sentences and simpler words.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.4:1).

✅ System fonts: Zero font loading delay — best possible LCP impact.

Flesch 14

Color Palette

7 unique colors

Light

#ffffff

Background· 87%

#9a9cca

Primary· 2.5%

#bfbed4

Secondary· 2.4%

#7f7db4

Secondary· 2.3%

#aea9cd

Secondary· 2%

#d7d3de

Secondary· 2%

#e6e5eb

Secondary· 1.8%

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Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

4specs.com

27 years old

Location detected: 🇺🇸 United Statesvia ip

pair Networks, Inc. d/b/a pair Domainsen

Sponsored

Last analyzed: 03 Jun 2026 at 06:05

Historical Analysis & Change Tracking