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advantest.com

https://advantest.com· First analyzed 06 May 2026· Updated 06 May 2026
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advantest.com
Desktop screenshot of advantest.com
Mobile screenshot of advantest.com
Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

35.77.146.187

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

CDN

Azure Cdn

Nameservers

ns4-05.azure-dns.info.ns1-05.azure-dns.com.ns2-05.azure-dns.net.ns3-05.azure-dns.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
561 ms10%
Speed Index
729 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
19 MB
61 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Amazon Web Services (AWS)
CDN
Azure Cdn

Technology Stack

1 Technologies Detected

CSS Frameworks

1
Tailwind CSS

SEO Analysis

B70/100
21
6
2
Meta Tags7/15
Content12/12
Headings3/8
Technical22/25
E-E-A-T2/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness2/4
Mobile4/4
Indexability3/3
A
advantest.comadvantest.com

株式会社アドバンテスト

アドバンテストのオフィシャルサイトです。アドバンテストは、卓越したテスト技術力とグローバルなサポート力で、暮らしの「安全・安心・心地よい」を支えます。

Title Length11 chars

Recommended: 50-60 chars (~68px / 580px)

Description Length75 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (46/57) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

737 URLs

robots.txt

6 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

15/100
Poor
4 13

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

D53/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
6/25
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:4%
Words:561
Token eff.:Optimal
Sections/1K:7.1
Depth:1/5

Structured Data

2 JSON-LD
Organization×1.1WebSite
sameAs entity links

Citation Readiness

Opening Summary16w
Descriptive Headingsavg 2w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
Upgrade to view recommendations

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.
B
73/100
11
Passed
3
Critical
1
Warnings
Images & Alt Text
13/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
36/100
F
1.96 g
CO₂e / view
19.0 MB
Page Weight
5%
Cleaner Than
New Visitor
2.24 g
vs
Returning (cached)
1.12 g
Annual (10K/mo)
235.5 kg
Emission Segments
Data Center
96 mg
Network
577 mg
Device
1.29 g
Resource Breakdown
JavaScript
114.4 KB
Images
9.0 MB
CSS
9.8 MB
HTML
16.2 KB
Other
2.0 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

154d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

23.03.2026

Valid Until

07.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (9)

www.advantest.comadvantest.comauth-bridge.advantest.comcs.advantest.comlicense.advantest.comsoftwarecenter.advantest.comstore.cts-advantest.comwww2.advantest.com+1 more

SHA-256 Fingerprint

D0:6F:C5:BD:56:F2:EC:CF:EC:89:B0:69:51:B4:25:F9:A4:AB:74:59...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
content-encoding
📦 Gzip(gzip)
content-length
16301
content-type
text/html; charset=UTF-8
date
Wed, 06 May 2026 21:10:13 GMT
strict-transport-security
max-age=31536000 ; includeSubDomains ; preload
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

advantest-com.mail.protection.outlook.com

Domain Information

advantest.com

Domain Age
32y 5m

Created

29.11.1993

Expires

14.12.2034

Last Updated

24.02.2026

Registrar

Key-Systems GmbH

DNSSEC
Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner
OneTrust
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: OneTrust
Privacy policy page linked

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
64/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Roboto

WCAG AAA
80/100
Readability
/30
18/30

16px · LH 1.70

Hierarchy
/20
20/20

2.5x ratio · ✓ H1→H6

WCAG
/25
22/25

9.25:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

Roboto

Sans40px

Body Font

Roboto

Sans16px

Contrast Ratio

9.25:1

WCAG AAA (≥7:1)

Reading Comfort

~36 CPL

Narrow lines
40px
h1
40px
h2
16px
p
Minor Second
Scale

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

⚠️ Hard to read: Flesch score 35/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.2:1).

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

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

Fluid TypeFlesch 35

Color Palette

11 unique colors
Light
#ffffff
Background· 20.099999999999998%
#242e0b
Primary· 20.5%
#0a0806
Secondary· 11.7%
#32480b
Accent· 7.9%
#dbb49c
Secondary· 6.6%
#b6a483
Secondary· 6.2%
#9f7e5f
Secondary· 6.2%
#5c4f2b
Secondary· 6%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
OneTrustEnterprise

Cookie consent and privacy compliance tools

2

Categories

2

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

11 Resources

8
Scripts
3
Styles
1
Async
0
Defer

Top Script Sources

local(3)cdn-au.onetrust.com(2)assets.adobedtm.com(1)poplink-f.probo.biz(1)m.geniee-search.net(1)

Website Identity

株式会社アドバンテスト

株式会社アドバンテスト

Organization
www.advantest.com/ja/
32 years old
Location detected: 🇯🇵 Japanvia ip
Key-Systems GmbH📧 Microsoft 365ja

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Last analyzed: 06 May 2026 at 21:10

Historical Analysis & Change Tracking