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corocoro.jp

週刊コロコロコミック

Last scanned Jul 26, 2026, 11:19 AM

83

Overall score

Great

Summary

無料で読める漫画がたくさん！コロコロ編集部が運営する総合エンタメサイト！. This website uses WordPress hosted on InfoSphere - NTT PC Communications, Inc., JP. SEO is fair (70/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (100/100). Top issue: No H1 heading found.

無料で読める漫画がたくさん！コロコロ編集部が運営する総合エンタメサイト！

Japan
Hosted on InfoSphere - NTT PC Communications, Inc., JP

Top issues to fix

8 issues found · 2 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

+2 more issues — details in the sections below.

70

SEO

4 issue(s) found

100

Performance

518 ms

75

Security

HTTPS & header checks

90

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

無料で読める漫画がたくさん！コロコロ編集部が運営する総合エンタメサイト！

X (Twitter)YouTube

Contact

Email, phone, and address published on this site's own pages.

Source: https://www.corocoro.jp/contact

Meta tags

Title
週刊コロコロコミック
Description
無料で読める漫画がたくさん！コロコロ編集部が運営する総合エンタメサイト！
Canonical
https://www.corocoro.jp
Language
ja
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest
https://www.corocoro.jp/manifest.json

OpenGraph & Twitter Card

OpenGraph

og:title
週刊コロコロコミック
og:description
無料で読める漫画がたくさん！コロコロ編集部が運営する総合エンタメサイト！
og:type
—
og:url
—

Twitter Card

twitter:card
summary_large_image
twitter:title
週刊コロコロコミック
twitter:description
無料で読める漫画がたくさん！コロコロ編集部が運営する総合エンタメサイト！

Technologies

Detected frameworks, languages, and tools.

Next.jsWordPressGoogle Analytics

Hosting & CDN

CDN provider
—
IP address
163.44.24.21
ASN
AS2514 (InfoSphere - NTT PC Communications, Inc., JP)

DNS records

TypeValue
A
  • 163.44.24.21
AAAA—
MX—
TXT—
NS
  • ns-766.awsdns-31.net
  • ns-1249.awsdns-28.org
  • ns-333.awsdns-41.com
  • ns-1795.awsdns-32.co.uk
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
www.corocoro.jp
Valid from
Jul 27, 2026
Valid to
Oct 25, 2026
Days until expiry
88
SAN domains
*.www.corocoro.jp, www.corocoro.jp

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

7 internal · 11 external · 1 broken

Images

10 total · 0 missing alt

Scripts / Styles

37 scripts · 4 stylesheets

JS / CSS size

609 KB · 166 KB

Page size

31.1 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • No H1 heading found
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://corocoro.jp
Final URL
https://www.corocoro.jp/
HTTP status
200
HTTP version
HTTP/2
Response time
518 ms
HTML size
31.1 KB
Redirect chain
https://corocoro.jp → https://www.corocoro.jp/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does corocoro.jp use?
corocoro.jp is built with Next.js, WordPress, Google Analytics.
Is corocoro.jp secure (HTTPS)?
Yes. corocoro.jp uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 25, 2026.
Who hosts corocoro.jp?
corocoro.jp is hosted on InfoSphere - NTT PC Communications, Inc., JP.
What is corocoro.jp's SEO score?
corocoro.jp scored 70/100 for SEO in the latest analysis (fair).
What is corocoro.jp's overall website score?
corocoro.jp has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.