What technology does 5ch.io use?

5ch.io is built with PHP, Bootstrap, jQuery, Google Analytics.

Is 5ch.io secure (HTTPS)?

Yes. 5ch.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 30, 2026.

Hosting provider information for 5ch.io is not available yet.

What is 5ch.io's SEO score?

5ch.io scored 55/100 for SEO in the latest analysis (fair).

What is 5ch.io's overall website score?

5ch.io has an overall SiteGraph score of 70/100, combining SEO, performance, security, and accessibility.

Has 5ch.io's score changed over time?

5ch.io's overall score has declined by 3 points (from 73 to 70) since Jul 21, 2026.

5ch.io

５ちゃんねる

Last scanned Jul 29, 2026, 6:00 PM · 9 views

Overall score

Fair

Summary

This website uses PHP behind Cloudflare CDN. SEO is fair (55/100) and accessibility is fair (60/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.

Top issues to fix

12 issues found · 5 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.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
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.
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.

+6 more issues — details in the sections below.

SEO

6 issue(s) found

100

Performance

531 ms

Security

HTTPS & header checks

Accessibility

2 issue(s) found

Score history

-3 overall since Jul 21, 2026

Overall: 70
SEO: 55
Security: 65
Performance: 100
Accessibility: 60

Organization

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

X (Twitter)

Meta tags

Title: ５ちゃんねる
Description
Canonical: https://5ch.io/
Language: ja
Charset: utf-8
Viewport: width=device-width, initial-scale=1, shrink-to-fit=no
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

PHP Bootstrap jQuery Google Analytics

Hosting & CDN

Hosting provider: —
CDN provider: Cloudflare
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Google Trust Services
Subject: 5ch.io
Valid from: Jul 2, 2026
Valid to: Sep 30, 2026
Days until expiry: 62
SAN domains: 5ch.io, *.5ch.io

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 0 · H2 0 · H3 1

Links

5 internal · 45 external · 20 broken

Images

19 total · 18 missing alt

Scripts / Styles

29 scripts · 3 stylesheets

JS / CSS size

4.1 KB · 1.8 KB

Page size

79.7 KB

Robots.txt & Sitemap

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

SEO issues

Missing meta description
No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://5ch.io
Final URL: https://5ch.io
HTTP status: 200
HTTP version: HTTP/2
Response time: 530 ms
HTML size: 79.7 KB
Redirect chain: https://5ch.io

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does 5ch.io use?: 5ch.io is built with PHP, Bootstrap, jQuery, Google Analytics.
Is 5ch.io secure (HTTPS)?: Yes. 5ch.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 30, 2026.
Who hosts 5ch.io?: Hosting provider information for 5ch.io is not available yet.
What is 5ch.io's SEO score?: 5ch.io scored 55/100 for SEO in the latest analysis (fair).
What is 5ch.io's overall website score?: 5ch.io has an overall SiteGraph score of 70/100, combining SEO, performance, security, and accessibility.
Has 5ch.io's score changed over time?: 5ch.io's overall score has declined by 3 points (from 73 to 70) since Jul 21, 2026.