4pcb.com

https://4pcb.com· First analyzed 20 May 2026· Updated 20 May 2026

Export

4pcb.com

Mobile

Sponsored

Hosting Provider

Microsoft Azure

azure.microsoft.com

IP Address

40.112.243.48

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS8075

Organization

Microsoft Azure App Service (westus)

Server

Microsoft IIS

Nameservers

ns2.dotster.com.ns1.dotster.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

878 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

5.8 MB

121 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

CMS

HubSpot CMS

Infrastructure

Hosting

Microsoft Azure

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

8 Technologies Detected

Analytics

CSS Frameworks

Tag Managers

Marketing

Advertising

Web Servers

Frameworks

SEO Analysis

B76/100

Meta Tags9/15

Content11/12

Headings8/8

Technical24/25

E-E-A-T2/7

Images4/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile1/4

Indexability3/3

4pcb.com4pcb.com

AdvancedPCB | PCB Design, Manufacturing, and Assembly Services | Ad...

Discover high-quality PCBs designed for every industry at AdvancedPCB. Fast turnaround and advanced technology for your unique needs.

Title truncated.

Title Length76 chars

Recommended: 50-60 chars (~459px / 580px)

Description Length133 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (76 chars, ~459px). Will be truncated in search results.

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

695 URLs

robots.txt

7 rules

Sitemap reference found

Local SEO

Local Search Readiness

25/100

Needs Work

6 11

Sponsored

AI & LLM Readiness

D52/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

7/25

Citation

14/25

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:6%

Words:1,440

Token eff.:Optimal

Sections/1K:4.9

Depth:1/5

Structured Data

2 JSON-LD

Organization×1.1WebSiteSearchAction

sameAs entity links

Citation Readiness

Opening Summary10w

Descriptive Headingsavg 8.1w

Canonical URL

Open Graph2/3

Twitter Card2/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

68/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

17/20

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

Forms & Inputs

12/15

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

7/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

7/15

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

4 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.

33/100

602 mg

CO₂e / view

5.8 MB

Page Weight

Cleaner Than

New Visitor

688 mg

Returning (cached)

344 mg

Annual (10K/mo)

72.2 kg

Emission Segments

Data Center

30 mg

Network

177 mg

Device

395 mg

Resource Breakdown

JavaScript

222.5 KB

Images

5.0 MB

CSS

179.4 KB

Fonts

117.9 KB

HTML

23.1 KB

Other

298.9 KB

Green Hosting Verified

Microsoft Azure

Provider Match

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

31%Critical

Interactive

HTTPS

No WAF

91d

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

19.02.2026

Valid Until

19.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.advancedpcb.com

SHA-256 Fingerprint

AE:DC:B5:EA:11:B4:48:E5:DE:33:BB:EC:A6:C0:D3:D2:EF:99:6B:CF...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Wed, 20 May 2026 00:24:59 GMT

pragma

no-cache

request-context

appId=cid-v1:c46eef31-6a78-4e8c-b9f6-1c6b38834dec

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

MX Records (3)

mx-02-us-west-2.prod.hydra.sophos.com

mx-01-us-west-2.prod.hydra.sophos.com

apctinc-com.mail.protection.outlook.com

Domain Information

4pcb.com

Domain Age

27y 10m

Created

14.07.1998

Expires

13.07.2026

Last Updated

24.06.2025

Registrar

Domain.com - Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Legitimate interest basis mentioned

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.

86/100

Mobile Friendly4 breakpoints

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, shrink-to-fit=no

Typography & Readability

NHGsans

WCAG Partial

65/100

Readability

/30

22/30

16px · LH 1.50

Hierarchy

/20

19/20

3.75x ratio · ✓ H1→H6

WCAG

/25

15/25

1:1 min contrast

Performance

/25

9/25

1 font · 7 req

Heading Font

NHGsans

Sans60px

Body Font

NHGsans

Sans16px

Contrast Ratio

1:1

34 issues

Reading Comfort

~42 CPL

Narrow lines

60px

50px

42px

36px

16px

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

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

❌ Very complex text: Flesch score 5/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 34 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 3.8x larger than body text.

Buy on MyFontsFluid TypeFlesch 5

Color Palette

9 unique colors

Light

#e3e3e3

Other· 42.3%

#000e41

Primary· 18.200000000000003%

#445d7e

Secondary· 7.4%

#25264c

Secondary· 6.2%

#adb7c3

Secondary· 5.8%

#a48663

Secondary· 4.5%

#e2d0b5

Secondary· 0.8%

Business & Marketing Stack

8 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

SmartlookSMB

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

Reddit PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

web-sdk.smartlook.com(3)j.6sc.co(2)googletagmanager.com(2)local(2)snap.licdn.com(1)

Website Identity

APCB

Organization

Transform your innovation into reality

www.advancedpcb.com/

27 years old

Aurora, CO (Headquarters) -21101 E. 32nd Pkwy.Aurora, CO 80011-

Location detected: 🇺🇸 United Statesvia ip

Domain.com - Network Solutions, LLC📧 Microsoft 365enEst. 1981

Social Profiles

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Last analyzed: 20 May 2026 at 00:25

Historical Analysis & Change Tracking