skymark.co.jp

https://skymark.co.jp· First analyzed 01 May 2026· Updated 01 May 2026

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skymark.co.jp

Mobile

Sponsored

Hosting Provider

ULTINA

IP Address

210.169.227.44

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS4725

Organization

ULTINA

CDN

Akamai

WAF

Akamai

Nameservers

ns2.skymark.co.jp.ns5.skymark.co.jp.dns3.odn.ne.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

992 ms10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.2 MB

192 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

ULTINA

CDN

Akamai

Technology Stack

10 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

Advertising

Twitter Ads TikTok Pixel

Libraries

Fonts

Tag Managers

Customer Support

SEO Analysis

D57/100

Meta Tags12/15

Content9/12

Headings0/8

Technical13/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

skymark.co.jpskymark.co.jp

【公式】スカイマーク SKYMARK｜航空券予約・空席照会・運賃一覧・国内線

【スカイマーク公式サイト】国内線の航空券・飛行機の予約、空席・運賃・運航状況の検索ができます。羽田・札幌（新千歳）・仙台・茨城・名古屋・神戸・福岡・長崎・鹿児島・奄美大島・那覇・宮古（下地島）発着のお得な航空券、時刻表などの情報をご覧いただけます。

Title Length38 chars

Recommended: 50-60 chars (~238px / 580px)

Description Length124 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

8 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

69 rules

Local SEO

Local Search Readiness

6/100

Poor

2 13 2

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

Sponsored

AI & LLM Readiness

D42/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

0/25

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. listsnavheader/footer

Text ratio:5%

Words:386

Token eff.:Optimal

Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

76/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

18/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

12/15

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...

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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.

30/100

156 mg

CO₂e / view

1.2 MB

Page Weight

70%

Cleaner Than

New Visitor

179 mg

Returning (cached)

89 mg

Annual (10K/mo)

18.8 kg

Emission Segments

Data Center

35 mg

Network

38 mg

Device

84 mg

Resource Breakdown

JavaScript

364.8 KB

Images

362.0 KB

CSS

393.4 KB

Fonts

671 B

HTML

36.5 KB

Other

106.7 KB

Green Hosting Not Verified

ULTINA

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

41%Poor

Interactive

HTTPS

WAF

241d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Cybertrust Japan Co., Ltd.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

01.12.2025

Valid Until

29.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (9)

www.skymark.co.jpskymark.co.jpwww.skymark.jpwww1.skymark.co.jpwww.res.skymark.co.jpsmart.skymark.jpsearch.skymark.co.jpsmart.skymark.co.jp+1 more

SHA-256 Fingerprint

01:55:AC:EB:F5:F3:58:26:37:8B:52:A4:FC:2E:1C:BC:B9:6D:72:CE...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

akamai-grn

0.2d8f1002.1777677256.aa9d45d

cache-control

🔴 No Cache(max-age=0, no-cache, no-store)

content-type

text/html

date

Fri, 01 May 2026 23:14:16 GMT

etag

"7edc-650a8e5a83d80"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxa-0094d801.gslb.pphosted.com

mxb-0094d801.gslb.pphosted.com

Domain Information

skymark.co.jp

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.

33/100

Not 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.

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

ヒラギノ角ゴ ProN W3

WCAG Partial

49/100

Readability

/30

10/30

12px · LH 1.70

Hierarchy

/20

8/20

1.33x ratio

WCAG

/25

16/25

1.37:1 min contrast

Performance

/25

15/25

1 font · 1 req

Heading Font

ヒラギノ角ゴ ProN W3

Sans16px

Body Font

ヒラギノ角ゴ ProN W3

Sans12px

Contrast Ratio

1.37:1

2 issues

Reading Comfort

~39 CPL

Narrow lines

16px

12px

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

❌ Very complex text: Flesch score 22/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.4:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

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

✅ Lean font stack: 1 font families keeps load times fast.

GGoogle Fonts Buy on MyFontsFlesch 22

Color Palette

10 unique colors

3.14:1 AA Large Light

#ffffff

Background· 42.9%

#939286

Other· 6.8%

#53bcd9

Accent· 8.9%

#182c75

Primary· 5.6%

#8dbc9e

Secondary· 4.6%

#d8dfd8

Secondary· 4.6%

#8acebc

Secondary· 3.8%

#f7e79c

Accent· 3.5%

Business & Marketing Stack

7 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Twitter/X AdsMid-Market

TikTok PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(5)analytics.tiktok.com(5)connect.facebook.net(5)s.yimg.jp(2)scripts.clarity.ms(1)

Website Identity

skymark.co.jp

Location detected: 🇯🇵 Japanvia tld

Social Profiles

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 01 May 2026 at 23:14

Historical Analysis & Change Tracking