reversion.jp

TOP | Re:version

Last scanned Aug 5, 2026, 12:00 AM · 13 views

85

Overall score

Great

Summary

Re:versionは人力RPGをあきらめない。PBW（プレイバイウェブ）ゲームの企画・運営を行う会社です。. This website uses Google Analytics hosted on Fastly behind Fastly CDN. SEO is good (80/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.

Re:versionは人力RPGをあきらめない。PBW（プレイバイウェブ）ゲームの企画・運営を行う会社です。

United States

Hosted on Fastly

Top issues to fix

8 issues found · 2 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 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.

80

SEO

3 issue(s) found

100

Performance

413 ms

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

0 overall since Jul 27, 2026

Overall: 85
SEO: 80
Security: 65
Performance: 100
Accessibility: 100

Organization

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

Re:versionは人力RPGをあきらめない。PBW（プレイバイウェブ）ゲームの企画・運営を行う会社です。

X (Twitter)X (Twitter)

Meta tags

Title: TOP | Re:version
Description: Re:versionは人力RPGをあきらめない。PBW（プレイバイウェブ）ゲームの企画・運営を行う会社です。
Canonical: https://www.reversion.jp/
Language: ja
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Google Analytics

Hosting & CDN

Hosting provider: Fastly
CDN provider: Fastly
IP address: 185.199.111.153
ASN: AS54113 (FASTLY - Fastly, Inc., US)

DNS records

Type	Value
A	185.199.111.153 185.199.110.153 185.199.108.153 185.199.109.153
AAAA	2606:50c0:8000::153 2606:50c0:8001::153 2606:50c0:8003::153 2606:50c0:8002::153
MX	—
TXT	—
NS	—
CAA	0 issue "digicert.com" 0 issuewild "sectigo.com" 0 issuewild "digicert.com" 0 issuewild "letsencrypt.org" 0 issue "letsencrypt.org" 0 issue "sectigo.com"
CNAME	re-version.github.io
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: www.reversion.jp
Valid from: Jun 26, 2026
Valid to: Sep 24, 2026
Days until expiry: 50
SAN domains: reversion.jp, www.reversion.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 2 · H3 0

Links

4 internal · 4 external · 1 broken

Images

17 total · 3 missing alt

Scripts / Styles

4 scripts · 1 stylesheets

JS / CSS size

2.2 KB · 40.4 KB

Page size

18.8 KB

Robots.txt & Sitemap

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

SEO issues

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

Scan details

Requested URL: https://reversion.jp
Final URL: https://www.reversion.jp/
HTTP status: 200
HTTP version: HTTP/2
Response time: 413 ms
HTML size: 18.8 KB
Redirect chain: https://reversion.jp → https://www.reversion.jp/

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Frequently asked questions

What technology does reversion.jp use?: reversion.jp is built with Google Analytics.
Is reversion.jp secure (HTTPS)?: Yes. reversion.jp uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 24, 2026.
Who hosts reversion.jp?: reversion.jp is hosted on Fastly, behind Fastly CDN.
What is reversion.jp's SEO score?: reversion.jp scored 80/100 for SEO in the latest analysis (great).
What is reversion.jp's overall website score?: reversion.jp has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
Has reversion.jp's score changed over time?: reversion.jp's overall score has stayed steady at 85/100 since Jul 27, 2026.