centralsemi.com

https://centralsemi.com· First analyzed 21 May 2026· Updated 21 May 2026

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centralsemi.com

Mobile

Sponsored

Hosting Provider

Central Semiconductor

IP Address

24.38.13.197

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Brooklyn, United States

ASN

AS6128

Organization

Central Semiconductor

Server

Apache

Nameservers

dns2.registrar-servers.com.dns1.registrar-servers.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.0 s10%

Speed Index

1.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

236 KB

29 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Central Semiconductor

Technology Stack

7 Technologies Detected

CSS Frameworks

Libraries

Icon Libraries

Fonts

Analytics

Web Servers

SEO Analysis

D54/100

Meta Tags8/15

Content12/12

Headings1/8

Technical15/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

centralsemi.comcentralsemi.com

Central Semiconductor LLC. | Home

Home

Title Length33 chars

Recommended: 50-60 chars (~201px / 580px)

Description Length4 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (6/11) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

205 URLs

robots.txt

9 rules

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.

Sponsored

AI & LLM Readiness

D40/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

10/25

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:10%

Words:796

Token eff.:Optimal

Sections/1K:3.8

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary53w

Descriptive Headingsavg 3.7w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

AI readiness recommendation preview...

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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.

66/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

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

4/15

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

5 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.

53/100

A+

29 mg

CO₂e / view

235.9 KB

Page Weight

95%

Cleaner Than

New Visitor

33 mg

Returning (cached)

17 mg

Annual (10K/mo)

3.5 kg

Emission Segments

Data Center

7 mg

Network

7 mg

Device

16 mg

Resource Breakdown

JavaScript

25.3 KB

Images

52.6 KB

CSS

148.4 KB

Fonts

1.8 KB

HTML

7.9 KB

Green Hosting Not Verified

Central Semiconductor

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

41%Poor

Interactive

HTTPS

No WAF

44d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-384 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

03.06.2025

Valid Until

04.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.centralsemi.comcentralsemi.com

SHA-256 Fingerprint

CC:F6:73:F8:E5:20:28:E6:4F:CC:ED:6D:F4:67:61:80:BF:72:26:65...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

connection

content-encoding

📦 Gzip(gzip)

content-security-policy

script-src 'self' https://hcaptcha.com https://*.hcaptcha.co...

content-type

text/html; charset=UTF-8

date

Thu, 21 May 2026 14:45:55 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

centralsemi-com.mail.protection.outlook.com

Domain Information

centralsemi.com

Domain Age

29y 9m

Created

29.08.1996

Expires

28.08.2026

Last Updated

29.07.2025

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

57/100

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

SourceSansPro-Light + SourceSansPro-Regular

WCAG Partial

58/100

Readability

/30

22/30

16px · LH 1.43

Hierarchy

/20

7/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

13/25

2 fonts · 4 req

Heading Font

SourceSansPro-Light

Sans

Body Font

SourceSansPro-Regular

Sans16px

Contrast Ratio

1:1

12 issues

Reading Comfort

~41 CPL

Narrow lines

30px

24px

16px

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

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 12 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.

GGoogle Fonts Buy on MyFontsFlesch 0

Color Palette

7 unique colors

Light

#eaf4fe

Background· 38.7%

#050e37

Primary· 20%

#061c4b

Accent· 15.9%

#2f5683

Secondary· 12.9%

#8897a5

Secondary· 6.6%

#dfe7e6

Secondary· 3.9%

#12315f

Accent· 2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Microsoft ClarityFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

scripts.clarity.ms(1)clarity.ms(1)code.jquery.com(1)cdn.jsdelivr.net(1)local(1)

Website Identity

centralsemi.com

29 years old

Location detected: 🇺🇸 United Statesvia ip

NameCheap, Inc.📧 Microsoft 365en

Social Profiles

X (Twitter)LinkedIn

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Last analyzed: 21 May 2026 at 14:46

Historical Analysis & Change Tracking