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nagaokatenmangu.or.jp

https://nagaokatenmangu.or.jp· First analyzed 02 Jun 2026· Updated 02 Jun 2026
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nagaokatenmangu.or.jp
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Mobile

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Hosting Provider

DIX Co., Ltd.

IP Address

153.123.7.133

Site Location

🇯🇵 Japanvia phone

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS131921

Organization

DIX Co., Ltd.

Server

Nginx

Nameservers

nswps101.anshin-sv.jp.wps103.anshin-sv.jp.

Performance

83

Core Web Vitals

Weight

First Contentful Paint
1.9 s10%
Speed Index
2.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.3 MB
74 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.11.0
cms
affingerCustom

Technology Stack

13 Technologies Detected

Plugins

3
Instagram Feed
Contact Form 7
Wp Jquery Lightbox

UI Components

2
Slick CarouselLightbox

CSS Frameworks

2
Tailwind CSS
Normalize.css

Libraries

1
jQueryv1.11.3

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Web Servers

1
Nginx

Customer Support

1
Zendesk

Security

1
reCAPTCHA

SEO Analysis

C69/100
22
7
1
Meta Tags5/15
Content6/12
Headings5/8
Technical22/25
E-E-A-T5/7
Images3/7
Links2/5
URL5/5
Social5/5
Freshness4/4
Mobile4/4
Indexability3/3
N
nagaokatenmangu.or.jpnagaokatenmangu.or.jp

長岡天満宮

四季のウツロイ ご由緒 当天満宮の御鎮座地長岡は、菅原道真公が御生前に在原業平と共に、しばしば遊んで詩歌管弦を

Title Length5 chars

Recommended: 50-60 chars (~31px / 580px)

Description Length55 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (23/34) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

Local SEO

Local Search Readiness

23/100
Needs Work
7 10

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AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
6/25
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
def. listsnavheader/footer
Text ratio:2%
Words:182
Token eff.:Too Short
Sections/1K:16.5
Depth:3/5

Structured Data

4 JSON-LD
Organization×1.1WebSiteBreadcrumbList

Citation Readiness

Opening Summary22w
Descriptive Headingsavg 1w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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
65/100
12
Passed
4
Critical
1
Warnings
Images & Alt Text
3/20
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
11/15
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.
2 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.
22/100
F
540 mg
CO₂e / view
4.3 MB
Page Weight
15%
Cleaner Than
New Visitor
617 mg
vs
Returning (cached)
309 mg
Annual (10K/mo)
64.8 kg
Emission Segments
Data Center
121 mg
Network
130 mg
Device
290 mg
Resource Breakdown
JavaScript
105.5 KB
Images
4.0 MB
CSS
131.6 KB
HTML
20.6 KB
Other
20.3 KB
Green Hosting Not Verified
DIX Co., Ltd.
7 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

52d

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

26.04.2026

Valid Until

25.07.2026

Subject Alternative Names (3)

nagaokatenmangu.or.jpwebmail.nagaokatenmangu.or.jpwww.nagaokatenmangu.or.jp

SHA-256 Fingerprint

D8:3A:CC:23:09:26:C3:50:6E:A3:FB:9A:C6:1F:02:3B:55:D7:62:C6...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
date
Tue, 02 Jun 2026 19:24:47 GMT
link
<https://nagaokatenmangu.or.jp/index.php?rest_route=/>; rel=...
server
nginx
x-powered-by
PleskLin
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

wps103.anshin-sv.jp

Domain Information

nagaokatenmangu.or.jp

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.
D
59/100
Mobile Friendly2 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=1.0,user-scalable=no,viewport-fit=cover
3 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

游明朝 + -apple-system

WCAG Partial
68/100
Readability
/30
26/30

18px · LH 1.50

Hierarchy
/20
5/20

0.72x ratio

WCAG
/25
16/25

1:1 min contrast

Performance
/25
21/25

System fonts

Heading Font

游明朝

Sans13px

Body Font

-apple-system

Sans18px

Contrast Ratio

1:1

11 issues

Reading Comfort

~35 CPL

Narrow lines
13px
h1
20px
h3
18px
p
Minor Third
Scale

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).

❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

Buy on MyFonts

Color Palette

10 unique colors
Light
#ffffff
Background· 48.699999999999996%
#ed6374
Primary· 11%
#648124
Accent· 8%
#505f25
Secondary· 6.4%
#9eb461
Secondary· 5.6%
#2d2511
Secondary· 5.4%
#e3d0c2
Secondary· 5.3%
#e53e48
Accent· 3.6%

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

30 Resources

20
Scripts
10
Styles
4
Async
0
Defer

Top Script Sources

nagaokatenmangu.or.jp(15)gstatic.com(1)google-analytics.com(1)googletagmanager.com(1)ajax.googleapis.com(1)

Website Identity

長岡天満宮

Organization

学問・受験・文化芸術の神様

[email protected]
+81759511025
nagaokatenmangu.or.jp/
Location detected: 🇯🇵 Japanvia phone
ja

Social Profiles

InstagramYouTube

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Last analyzed: 02 Jun 2026 at 19:25

Historical Analysis & Change Tracking