What technology does 5chan.jp use?

5chan.jp is built with PHP, jQuery, Google Analytics, Nginx.

Is 5chan.jp secure (HTTPS)?

Yes. 5chan.jp uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 17, 2026.

Hosting provider information for 5chan.jp is not available yet.

What is 5chan.jp's SEO score?

5chan.jp scored 80/100 for SEO in the latest analysis (great).

What is 5chan.jp's overall website score?

5chan.jp has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.

5chan.jp

いつもちゃんねる掲示板雑談掲示板 5chan.jp

Last scanned Aug 24, 2026, 1:22 PM · 1 view

Overall score

Fair

Summary

カテゴリ別の雑談掲示板です。匿名掲示板なので何でも書いてください。画像・動画の投稿も可能です。パソコン・スマホ対応。. This website uses PHP behind Fastly CDN. SEO is good (80/100) and accessibility is fair (70/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

カテゴリ別の雑談掲示板です。匿名掲示板なので何でも書いてください。画像・動画の投稿も可能です。パソコン・スマホ対応。

Top issues to fix

8 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.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.

+2 more issues — details in the sections below.

SEO

3 issue(s) found

100

Performance

173 ms

Security

HTTPS & header checks

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.

カテゴリ別の雑談掲示板です。匿名掲示板なので何でも書いてください。画像・動画の投稿も可能です。パソコン・スマホ対応。

X (Twitter)

Meta tags

Title: いつもちゃんねる掲示板雑談掲示板 5chan.jp
Description: カテゴリ別の雑談掲示板です。匿名掲示板なので何でも書いてください。画像・動画の投稿も可能です。パソコン・スマホ対応。
Canonical: https://5chan.jp
Language: ja
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

PHP jQuery Google Analytics Nginx

Hosting & CDN

Hosting provider: —
CDN provider: Fastly
IP address: 153.127.51.247
ASN: —

DNS records

Type	Value
A	153.127.51.247 133.125.48.166
AAAA	—
MX	mx1.5chan.jp
TXT	v=spf1 ip4:219.94.128.76 ip4:203.0.113.5 ~all google-site-verification=tMMYOis21e0YmPWaOzhPw9KCIhrUWjumrLCZ0mP5hQI
NS	albert.ns.cloudflare.com betty.ns.cloudflare.com
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: 5chan.jp
Valid from: Aug 19, 2026
Valid to: Nov 17, 2026
Days until expiry: 83
SAN domains: 5chan.jp, a.5chan.jp, b.5chan.jp, c.5chan.jp, d.5chan.jp, e.5chan.jp, mge.5chan.jp, une.5chan.jp

Security headers

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

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 39 · H3 0

Links

170 internal · 12 external · 0 broken

Images

5 total · 3 missing alt

Scripts / Styles

21 scripts · 1 stylesheets

JS / CSS size

279 KB · 28.0 KB

Page size

26.2 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 1
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Meta description longer than 160 characters
No structured data (JSON-LD) found
sitemap.xml not found

Scan details

Requested URL: https://5chan.jp
Final URL: https://5chan.jp
HTTP status: 200
HTTP version: HTTP/2
Response time: 173 ms
HTML size: 26.2 KB
Redirect chain: https://5chan.jp

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does 5chan.jp use?: 5chan.jp is built with PHP, jQuery, Google Analytics, Nginx.
Is 5chan.jp secure (HTTPS)?: Yes. 5chan.jp uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 17, 2026.
Who hosts 5chan.jp?: Hosting provider information for 5chan.jp is not available yet.
What is 5chan.jp's SEO score?: 5chan.jp scored 80/100 for SEO in the latest analysis (great).
What is 5chan.jp's overall website score?: 5chan.jp has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.