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bigcomics.jp

ビッコミ（ビッグコミックス） | いつも、どこでも、漫画と。

Last scanned Jul 26, 2026, 7:46 AM

85

Overall score

Great

Summary

小学館・青年漫画誌5誌のWeb漫画サイト『ビッコミ』。「週刊ビッグコミックスピリッツ」「月刊！スピリッツ」「ビッグコミックスペリオール」「ビッグコミック… This website uses Next.js behind CloudFront CDN. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

小学館・青年漫画誌5誌のWeb漫画サイト『ビッコミ』。「週刊ビッグコミックスピリッツ」「月刊！スピリッツ」「ビッグコミックスペリオール」「ビッグコミック」「ビッグコミックオリジナル」のマンガが基本無料で試し読みできます。

Top issues to fix

9 issues found · 1 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • 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.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

  • No structured data (JSON-LD) found

    SEO

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

+3 more issues — details in the sections below.

70

SEO

5 issue(s) found

100

Performance

568 ms

75

Security

HTTPS & header checks

100

Accessibility

0 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.

小学館・青年漫画誌5誌のWeb漫画サイト『ビッコミ』。「週刊ビッグコミックスピリッツ」「月刊！スピリッツ」「ビッグコミックスペリオール」「ビッグコミック」「ビッグコミックオリジナル」のマンガが基本無料で試し読みできます。

Meta tags

Title
ビッコミ（ビッグコミックス） | いつも、どこでも、漫画と。
Description
小学館・青年漫画誌5誌のWeb漫画サイト『ビッコミ』。「週刊ビッグコミックスピリッツ」「月刊！スピリッツ」「ビッグコミックスペリオール」「ビッグコミック」「ビッグコミックオリジナル」のマンガが基本無料で試し読みできます。
Canonical
https://bigcomics.jp
Language
ja
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
ビッコミ（ビッグコミックス） | いつも、どこでも、漫画と。
og:description
小学館・青年漫画誌5誌のWeb漫画サイト『ビッコミ』。「週刊ビッグコミックスピリッツ」「月刊！スピリッツ」「ビッグコミックスペリオール」「ビッグコミック」「ビッグコミックオリジナル」のマンガが基本無料で試し読みできます。
og:type
website
og:url
—

Twitter Card

twitter:card
summary_large_image
twitter:title
ビッコミ（ビッグコミックス） | いつも、どこでも、漫画と。
twitter:description
小学館・青年漫画誌5誌のWeb漫画サイト『ビッコミ』。「週刊ビッグコミックスピリッツ」「月刊！スピリッツ」「ビッグコミックスペリオール」「ビッグコミック」「ビッグコミックオリジナル」のマンガが基本無料で試し読みできます。

Technologies

Detected frameworks, languages, and tools.

Next.js

Hosting & CDN

Hosting provider
—
CDN provider
CloudFront
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Amazon
Subject
bigcomics.jp
Valid from
Nov 25, 2025
Valid to
Dec 24, 2026
Days until expiry
149
SAN domains
bigcomics.jp

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 18 · H3 0

Links

64 internal · 11 external · 20 broken

Images

80 total · 0 missing alt

Scripts / Styles

79 scripts · 12 stylesheets

JS / CSS size

142 KB · 1.1 KB

Page size

258 KB

Robots.txt & Sitemap

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

SEO issues

  • Title longer than 60 characters
  • Meta description longer than 160 characters
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://bigcomics.jp
Final URL
https://bigcomics.jp
HTTP status
200
HTTP version
HTTP/2
Response time
563 ms
HTML size
258 KB
Redirect chain
https://bigcomics.jp

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Frequently asked questions

What technology does bigcomics.jp use?
bigcomics.jp is built with Next.js.
Is bigcomics.jp secure (HTTPS)?
Yes. bigcomics.jp uses TLS 1.3 with a certificate issued by Amazon, valid until Dec 24, 2026.
Who hosts bigcomics.jp?
Hosting provider information for bigcomics.jp is not available yet.
What is bigcomics.jp's SEO score?
bigcomics.jp scored 70/100 for SEO in the latest analysis (fair).
What is bigcomics.jp's overall website score?
bigcomics.jp has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.