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taiwansemi.com

https://taiwansemi.com· First analyzed 18 May 2026· Updated 18 May 2026
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taiwansemi.com
Desktop screenshot of taiwansemi.com
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Mobile

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Hosting Provider

aws.amazon.com

IP Address

13.33.235.93

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 New York, United States

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

Apache

CDN

CloudFront

Nameservers

ns-1923.awsdns-48.co.uk.ns-429.awsdns-53.com.ns-539.awsdns-03.net.ns-1508.awsdns-60.org.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
714 ms10%
Speed Index
928 ms10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.9 MB
138 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.1
cms
astra

SEO Analysis

B76/100
23
3
2
Meta Tags15/15
Content3/12
Headings6/8
Technical22/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile3/4
Indexability3/3
T
taiwansemi.comtaiwansemi.com

Taiwan Semiconductor - Semiconductor & Power Solutions

Taiwan Semiconductor offers a product portfolio, spanning Rectifiers, MOSFETs, Diodes, ICs, and Sensors, providing customers with a power management solution.

Title Length54 chars

Recommended: 50-60 chars (~335px / 580px)

Description Length158 chars

Recommended: 120-160 chars

Issues (2)

  • Very thin content (7 words). Search engines need substantial content for ranking.
  • Most images missing alt text (24/38) — critical for accessibility and SEO

Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

Local SEO

Local Search Readiness

28/100
Needs Work
9 10

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AI & LLM Readiness

D45/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
8/25
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
Text ratio:1%
Words:1,643
Token eff.:Optimal

Structured Data

4 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...

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.
C
68/100
9
Passed
4
Critical
0
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
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
11/15
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.
2 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.
24/100
F
407 mg
CO₂e / view
3.9 MB
Page Weight
15%
Cleaner Than
New Visitor
466 mg
vs
Returning (cached)
233 mg
Annual (10K/mo)
48.9 kg
Emission Segments
Data Center
20 mg
Network
120 mg
Device
268 mg
Resource Breakdown
JavaScript
830.5 KB
Images
999.5 KB
CSS
1.0 MB
HTML
1.1 MB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
8 recommendations
  • Carbon footprint recommendation preview...
D

Security Score

41%Poor
Interactive

HTTPS

No WAF

194d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

TAIWAN-CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

29.10.2025

Valid Until

28.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.taiwansemi.comtaiwansemi.com

SHA-256 Fingerprint

6D:07:37:AE:5B:A0:E5:83:7E:91:63:4C:5D:DC:77:7D:57:A0:D5:BA...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-cache, no-store, must-revalidate)
content-security-policy
upgrade-insecure-requests
content-type
text/html; charset=UTF-8
date
Mon, 18 May 2026 15:53:43 GMT
link
<https://www.taiwansemi.com/en>; rel="alternate"; hreflang="...
server
Apache/2.4.54 (Win64) OpenSSL/1.1.1p PHP/8.1.10
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

taiwansemi.com

Domain Age
24y 1m

Created

04.04.2002

Expires

04.04.2030

Last Updated

25.01.2021

Registrar

Net-Chinese Co., Ltd.

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked
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.
C
69/100
Mobile Friendly110 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
2 recommendations
  • Mobile compatibility recommendation preview...

Typography & Readability

Calibri

WCAG Partial
67/100
Readability
/30
17/30

15px · LH 1.30

Hierarchy
/20
18/20

2.73x ratio

WCAG
/25
13/25

1:1 min contrast

Performance
/25
19/25

System fonts

Heading Font

Calibri

Sans42px

Body Font

Calibri

Sans15px

Contrast Ratio

1:1

15 issues

Reading Comfort

~34 CPL

Narrow lines
42px
h1
34px
h2
27px
h3
20px
h4
15px
p

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

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 18/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.7x larger than body text.

Buy on MyFontsFluid TypeFlesch 18

Color Palette

5 unique colors
10.37:1 AAA Light
#ffffff
Background· 40%
#404040
Other· 36.7%
#162735
Primary· 13.3%
#12161a
Secondary· 5.6%
#6b7f97
Secondary· 4.5%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2

User behavior and product analytics

Privacy & Cookies

1

Cookie consent and privacy compliance tools

2

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
5
Async
0
Defer

Top Script Sources

taiwansemi.com(11)local(4)googletagmanager.com(3)consent.cookiebot.com(2)

Website Identity

Taiwan Semiconductor

Taiwan Semiconductor

Organization

Taiwan Semiconductor offers a product portfolio, spanning Rectifiers, MOSFETs, Diodes, ICs, and Sensors, providing customers with a power management solution.

Location detected: 🇺🇸 United Statesvia ip
Net-Chinese Co., Ltd.en-US

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Last analyzed: 18 May 2026 at 15:54

Historical Analysis & Change Tracking