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exelco.com

https://exelco.com· First analyzed 04 Jun 2026· Updated 04 Jun 2026
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exelco.com
Desktop screenshot of exelco.com
Mobile screenshot of exelco.com
Mobile

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Hosting Provider

Google Cloud Platform
cloud.google.com

IP Address

35.194.115.174

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Tokyo, Japan

ASN

AS396982

Organization

Google Cloud (asia-northeast1)

CDN

Akamai

WAF

Akamai

Nameservers

ns-1235.awsdns-26.org.ns-1655.awsdns-14.co.uk.ns-355.awsdns-44.com.ns-620.awsdns-13.net.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
955 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
326 KB
90 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
exelcov1.0Custom
by tastas inc.
View Theme

Technology Stack

16 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

CSS Frameworks

2
Bootstrap
Normalize.css

Plugins

2
Bj Lazy Load
Yoast SEO

Libraries

1
jQueryv1.12.4

UI Components

1
Slick Carousel

Other

1
Modernizr

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Advertising

1
TikTok Pixel

Customer Support

1
Zendesk

SEO Analysis

C68/100
19
6
1
Meta Tags14/15
Content9/12
Headings3/8
Technical21/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile1/4
Indexability3/3
E
exelco.comexelco.com

エクセルコ ダイヤモンド公式 ｜ダイヤモンドジュエリー専門店、婚約指輪・結婚指輪、ティアラ

【公式】ダイヤモンドの輝きを追究し続けるダイヤモンドジュエリーの専門店。婚約指輪（エンゲージリング）・結婚指輪（マリッジリング）・ティアラ・ハイジュエリーなど、ダイヤモンドの輝きを最大限に引き出す精巧な造りと、どこから見ても美しいデザインが魅力。

Title Length45 chars

Recommended: 50-60 chars (~279px / 580px)

Description Length123 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

216 URLs

216 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

14/100
Poor
4 13

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D41/100
Bot Access
20/25
Machine Read.
5/25
Schema Data
6/25
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
def. listsnav
Text ratio:4%
Words:242
Token eff.:Too Short
Sections/1K:49.6
Depth:2/5

Structured Data

1 JSON-LD
Organization×1.1microdataWebSiteBreadcrumbListmicrodataSearchAction

Citation Readiness

Opening Summary
Descriptive Headingsavg 1.6w
Canonical URL
Open Graph2/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
C
69/100
9
Passed
3
Critical
0
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
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
3/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
73/100
A+
33 mg
CO₂e / view
326.0 KB
Page Weight
90%
Cleaner Than
New Visitor
38 mg
vs
Returning (cached)
19 mg
Annual (10K/mo)
3.9 kg
Emission Segments
Data Center
2 mg
Network
10 mg
Device
22 mg
Resource Breakdown
JavaScript
116.4 KB
Images
147.1 KB
CSS
50.8 KB
HTML
10.4 KB
Other
1.3 KB
Green Hosting Verified
Google Cloud
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

26%Critical
Interactive

HTTPS

WAF

215d

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

26.12.2025

Valid Until

05.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.exelco.com

SHA-256 Fingerprint

3D:1F:D4:18:7D:11:55:6C:C2:9E:6E:E2:16:49:53:C2:48:97:2D:85...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(max-age=0, no-cache, private)
content-encoding
📦 Gzip(gzip)
content-length
10310
content-type
text/html; charset=UTF-8
date
Thu, 04 Jun 2026 10:26:18 GMT
expires
Thu, 04 Jun 2026 10:26:18 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

mx01.jm-s.co.jp
mx03.jm-s.co.jp
mx02.jm-s.co.jp
mail.exelco.com

Domain Information

exelco.com

Domain Age
26y 2m

Created

17.03.2000

Expires

17.03.2027

Last Updated

15.03.2026

Registrar

Japan Registry Services Co., Ltd.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Data Protection Officer 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
65/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Garamond + Helvetica

WCAG Partial
40/100
Readability
/30
8/30

13px · LH 1.00

Hierarchy
/20
8/20

1.23x ratio

WCAG
/25
15/25

1:1 min contrast

Performance
/25
9/25

3 fonts · 3 req

Heading Font

Garamond

Serif16px

Body Font

Helvetica

Sans13px

Contrast Ratio

1:1

7 issues

Reading Comfort

~76 CPL

Wide lines
16px
h1
37px
h2
20px
h3
13px
p
Minor Third
Scale

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Tight line spacing (1.00). Increase to 1.4–1.6 for better readability.

⚠️ Wide lines: ~76 chars/line. Use max-width: 65ch for comfortable reading.

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

AAdobe FontsBuy on MyFontsFlesch 66

Color Palette

6 unique colors
10.47:1 AAA Dark
#000000
Background· 96.39999999999998%
#b7b7b7
Other· 0.6%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

1
TikTok PixelMid-Market

Ad platforms and retargeting pixels

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
11
Async
0
Defer

Top Script Sources

analytics.tiktok.com(3)googletagmanager.com(3)youtube.com(2)exelco.com(2)s.yimg.jp(2)

Website Identity

エクセルコ ダイヤモンド

www.exelco.com/
26 years old
Location detected: 🇯🇵 Japanvia ip
Japan Registry Services Co., Ltd.ja

Social Profiles

FacebookInstagram

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Last analyzed: 04 Jun 2026 at 10:26

Historical Analysis & Change Tracking

exelco.com Technology Stack - Built With jQuery, Slick Carousel, Modernizr, Font Awesome, Adobe Fonts (Typekit) | StackOptic | StackOptic