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mantan-web.jp

MANTANWEB（まんたんウェブ）- ポップカルチャーの総合ニュースサイト

Last scanned Aug 1, 2026, 6:00 PM · 7 views

73

Overall score

Fair

Summary

「MANTANWEB（まんたんウェブ）」はアニメ、マンガ、ゲーム、テレビ、映画などエンターテインメントの最新情報を配信するサイトです。. This website uses Google Analytics behind CloudFront CDN. SEO is fair (60/100) and accessibility is fair (70/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

「MANTANWEB（まんたんウェブ）」はアニメ、マンガ、ゲーム、テレビ、映画などエンターテインメントの最新情報を配信するサイトです。

Top issues to fix

13 issues found · 3 high priority

  • Missing Strict-Transport-Security header

    Security

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

  • Missing Content-Security-Policy header

    Security

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

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • 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.

+7 more issues — details in the sections below.

60

SEO

7 issue(s) found

100

Performance

178 ms

65

Security

HTTPS & header checks

70

Accessibility

1 issue(s) found

Score history

-3 overall since Jul 25, 2026

Overall
73
SEO
60
Security
65
Performance
100
Accessibility
70

Organization

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

「MANTANWEB（まんたんウェブ）」はアニメ、マンガ、ゲーム、テレビ、映画などエンターテインメントの最新情報を配信するサイトです。

X (Twitter)Facebook

Meta tags

Title
MANTANWEB（まんたんウェブ）- ポップカルチャーの総合ニュースサイト
Description
「MANTANWEB（まんたんウェブ）」はアニメ、マンガ、ゲーム、テレビ、映画などエンターテインメントの最新情報を配信するサイトです。
Canonical
Language
ja-JP
Charset
UTF-8
Viewport
target-densitydpi=device-dpi, width=1008
Robots meta
Manifest
https://mantan-web.jp/assets/favicons/manifest.json

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

Tailwind CSSjQueryGoogle Analytics

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
mantan-web.jp
Valid from
Jan 8, 2026
Valid to
Feb 6, 2027
Days until expiry
189
SAN domains
mantan-web.jp

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 29 · H3 32

Links

88 internal · 13 external · 20 broken

Images

70 total · 50 missing alt

Scripts / Styles

26 scripts · 4 stylesheets

JS / CSS size

4.0 KB · 354 B

Page size

62.3 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
  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text

Scan details

Requested URL
https://mantan-web.jp
Final URL
https://mantan-web.jp
HTTP status
200
HTTP version
HTTP/2
Response time
177 ms
HTML size
62.3 KB
Redirect chain
https://mantan-web.jp

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does mantan-web.jp use?
mantan-web.jp is built with Tailwind CSS, jQuery, Google Analytics.
Is mantan-web.jp secure (HTTPS)?
Yes. mantan-web.jp uses TLS 1.3 with a certificate issued by Amazon, valid until Feb 6, 2027.
Who hosts mantan-web.jp?
Hosting provider information for mantan-web.jp is not available yet.
What is mantan-web.jp's SEO score?
mantan-web.jp scored 60/100 for SEO in the latest analysis (fair).
What is mantan-web.jp's overall website score?
mantan-web.jp has an overall SiteGraph score of 73/100, combining SEO, performance, security, and accessibility.
Has mantan-web.jp's score changed over time?
mantan-web.jp's overall score has declined by 3 points (from 76 to 73) since Jul 25, 2026.