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yellman.net

https://yellman.net· First analyzed 29 May 2026· Updated 29 May 2026
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yellman.net
Desktop screenshot of yellman.net
Mobile screenshot of yellman.net
Mobile

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Hosting Provider

BETINC

IP Address

202.226.37.65

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS131965

Organization

BETINC

Server

Nginx

Nameservers

ns2.xserver.jp.ns4.xserver.jp.ns3.xserver.jp.ns1.xserver.jp.+1 more

Performance

77

Core Web Vitals

Weight

First Contentful Paint
2.7 s10%
Speed Index
3.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
445 KB
29 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv5.1.1
cms
WING-AFFINGER5v20180405Custom
by ENJI
View Theme

Technology Stack

7 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Normalize.css

Libraries

1
jQueryv1.11.3

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Web Servers

1
Nginx

Plugins

1
Wp Page Numbers

SEO Analysis

D48/100
14
6
2
Meta Tags7/15
Content3/12
Headings5/8
Technical16/25
E-E-A-T0/7
Images0/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
Y
yellman.netyellman.net

お悩み解決のトビラ！ | お悩み解決の道案内になる情報を紹介しています。

No description available for this page.

Title Length36 chars

Recommended: 50-60 chars (~221px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Very thin content (25 words). Search engines need substantial content for ranking.

8 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

3 rules

Local SEO

Local Search Readiness

3/100
Poor
1 14 2

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

F31/100
Bot Access
20/25
Machine Read.
6/25
Schema Data
0/25
Citation
5/25

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. listsnavheader/footer
Text ratio:2%
Words:22
Token eff.:Too Short
Sections/1K:10
Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 1w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
Upgrade to view recommendations

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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.
B
77/100
10
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
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
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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
55 mg
CO₂e / view
445.4 KB
Page Weight
90%
Cleaner Than
New Visitor
63 mg
vs
Returning (cached)
32 mg
Annual (10K/mo)
6.6 kg
Emission Segments
Data Center
12 mg
Network
13 mg
Device
30 mg
Resource Breakdown
JavaScript
46.0 KB
CSS
383.3 KB
Fonts
1.5 KB
HTML
4.9 KB
Other
9.6 KB
Green Hosting Not Verified
BETINC
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

73d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

13.05.2026

Valid Until

11.08.2026

Subject Alternative Names (2)

www.yellman.netyellman.net

SHA-256 Fingerprint

29:19:01:82:2E:37:39:3E:5F:36:23:36:33:DC:2F:35:81:E9:38:F9...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
date
Fri, 29 May 2026 20:05:47 GMT
link
<https://yellman.net/wp-json/>; rel="https://api.w.org/"
server
nginx
vary
Accept-Encoding
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (1)

yellman.net

Domain Information

yellman.net

Domain Age
18y 1m

Created

08.04.2008

Expires

08.04.2027

Last Updated

20.03.2026

Registrar

GMO Internet Group, Inc. d/b/a Onamae.com

DNSSEC
Not Enabled

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.
D
50/100
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,user-scalable=no,viewport-fit=cover
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial
52/100
Readability
/30
12/30

12px · LH 2.25

Hierarchy
/20
7/20

1.08x ratio

WCAG
/25
16/25

1:1 min contrast

Performance
/25
17/25

System fonts

Heading Font

-apple-system

Sans13px

Body Font

-apple-system

Sans12px

Contrast Ratio

1:1

16 issues

Reading Comfort

~52 CPL

Optimal (45–75)
13px
h1
22px
h3
12px
p
Major Sixth
Scale

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Wide line spacing (2.25). 1.4–1.6 is optimal for body text.

✅ Optimal line length: ~52 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 16 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.

GGoogle Fonts

Color Palette

5 unique colors
Light
#fafafa
Background· 64.99999999999999%
#05a1ea
Primary· 28.6%
#93d0d9
Secondary· 2.4%
#3986be
Accent· 2.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

19 Resources

9
Scripts
10
Styles
2
Async
1
Defer

Top Script Sources

yellman.net(5)youtube.com(2)ajax.googleapis.com(1)b.st-hatena.com(1)

Website Identity

yellman.net

18 years old
Location detected: 🇯🇵 Japanvia ip
GMO Internet Group, Inc. d/b/a Onamae.comja

Social Profiles

Facebook

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Last analyzed: 29 May 2026 at 20:06

Historical Analysis & Change Tracking