nsttv.com

https://nsttv.com· First analyzed 24 May 2026· Updated 24 May 2026

Export

nsttv.com

Mobile

Sponsored

Hosting Provider

SAKURA

IP Address

49.212.239.162

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Osaka, Japan

ASN

AS7684

Organization

SAKURA

Server

Nginx

Nameservers

03.dnsv.jp.04.dnsv.jp.01.dnsv.jp.02.dnsv.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.3 s10%

Speed Index

3.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

6.9 MB

143 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Technology Stack

13 Technologies Detected

Libraries

CSS Frameworks

Analytics

Icon Libraries

Fonts

Adobe Fonts (Typekit)

Tag Managers

Google Tag Manager

Web Servers

Nginx

SEO Analysis

D57/100

Meta Tags5/15

Content8/12

Headings3/8

Technical17/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

nsttv.comnsttv.com

NST新潟総合テレビ

NST新潟総合テレビの公式サイト。番組情報、新潟県内のイベント情報、ニュースなどを掲載。

Title Length10 chars

Recommended: 50-60 chars (~62px / 580px)

Description Length44 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (44/69) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

620 URLs

robots.txt

Local SEO

Local Search Readiness

10/100

Poor

3 13 1

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

Sponsored

AI & LLM Readiness

F35/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

3/25

Citation

8/25

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:5%

Words:230

Token eff.:Too Short

Sections/1K:34.8

Depth:2/5

Structured Data

2 JSON-LD

WebSiteBreadcrumbList

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.2w

Canonical URL

Open Graph3/3

Twitter Card2/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

72/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

11/20

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

7/15

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.

13/100

879 mg

CO₂e / view

6.9 MB

Page Weight

Cleaner Than

New Visitor

1.00 g

Returning (cached)

502 mg

Annual (10K/mo)

105.5 kg

Emission Segments

Data Center

196 mg

Network

211 mg

Device

472 mg

Resource Breakdown

JavaScript

828.7 KB

Images

5.4 MB

CSS

668.8 KB

HTML

38.3 KB

Other

89.8 KB

Green Hosting Not Verified

SAKURA

9 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

46%Poor

Interactive

HTTPS

No WAF

85d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

20.05.2026

Valid Until

18.08.2026

Subject Alternative Names (2)

nsttv.comwww.nsttv.com

SHA-256 Fingerprint

06:FA:6E:3C:77:00:05:0F:F0:B7:66:5C:66:2E:04:D0:DA:1C:5B:F9...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(public, no-cache, s-maxage=300)

content-length

38906

content-type

text/html; charset=UTF-8

date

Sun, 24 May 2026 13:21:23 GMT

expires

pragma

no-cache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.nsttv.com

Domain Information

nsttv.com

Domain Age

25y 10m

Created

02.08.2000

Expires

02.08.2026

Last Updated

17.07.2025

Registrar

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

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

61/100

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, viewport-fit=cover

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

heisei-maru-gothic-std + “游ゴシック”

WCAG Partial

45/100

Readability

/30

10/30

10px · LH 1.00

Hierarchy

/20

7/20

WCAG

/25

14/25

1.42:1 min contrast

Performance

/25

14/25

2 fonts

Heading Font

heisei-maru-gothic-std

Sans

Body Font

“游ゴシック”

Sans10px

Contrast Ratio

1.42:1

23 issues

Reading Comfort

~62 CPL

Optimal (45–75)

22px

15px

10px

❌ Critical: 10px body text is too small. Minimum 14px, recommend 16px+.

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

✅ Optimal line length: ~62 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 1.4:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 2 font families keeps load times fast.

AAdobe Fonts Buy on MyFonts

Color Palette

12 unique colors

6.08:1 AA Light

#ffffff

Background· 29.200000000000003%

#6a605f

Other· 6.3%

#eca613

Accent· 18.200000000000003%

#0f0d11

Text· 7.6%

#191f2b

Primary· 6.4%

#afbfbc

Border· 5.7%

#d9d3c7

Secondary· 5.6%

#eeebd0

Secondary· 5%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(11)youtube.com(2)connect.facebook.net(2)googletagmanager.com(2)google-analytics.com(1)

Website Identity

NST新潟総合テレビ

www.nsttv.com/

25 years old

Location detected: 🇯🇵 Japanvia ip

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

Social Profiles

X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 24 May 2026 at 13:22

Historical Analysis & Change Tracking