What technology does gfs.tokyo use?

gfs.tokyo is built with PHP, jQuery, Google Analytics, Nginx.

Is gfs.tokyo secure (HTTPS)?

Yes. gfs.tokyo uses TLS 1.2 with a certificate issued by Amazon, valid until Oct 30, 2026.

Hosting provider information for gfs.tokyo is not available yet.

What is gfs.tokyo's SEO score?

gfs.tokyo scored 75/100 for SEO in the latest analysis (fair).

What is gfs.tokyo's overall website score?

gfs.tokyo has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.

Has gfs.tokyo's score changed over time?

gfs.tokyo's overall score has declined by 3 points (from 87 to 84) since Jul 27, 2026.

gfs.tokyo

GFS｜お金を武器にする投資スクール・動画講座

Last scanned Aug 4, 2026, 10:00 PM · 7 views

Overall score

Great

Summary

GFSは、投資や金融の知識を体系的に学べる日本最大級のオンラインスクールです。投資家や大学教授が講師を務める充実の講義動画が2000本以上！新NISAから資産を��… This website uses Nginx. SEO is good (75/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.

GFSは、投資や金融の知識を体系的に学べる日本最大級のオンラインスクールです。投資家や大学教授が講師を務める充実の講義動画が2000本以上！新NISAから資産を築くことを目指す講座「バフェッサ」、GFS監修の投資の達人になる投資講座などの無料動画も配信中！株式投資から家計見直しまで、包括的に金融情報を学習できます。

Top issues to fix

10 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.
4 cookies without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
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.

+4 more issues — details in the sections below.

SEO

5 issue(s) found

Performance

1.02 s

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 27, 2026

Overall: 84
SEO: 75
Security: 75
Performance: 90
Accessibility: 100

Organization

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

X (Twitter)X (Twitter)

Meta tags

Title: GFS｜お金を武器にする投資スクール・動画講座
Description: GFSは、投資や金融の知識を体系的に学べる日本最大級のオンラインスクールです。投資家や大学教授が講師を務める充実の講義動画が2000本以上！新NISAから資産を築くことを目指す講座「バフェッサ」、GFS監修の投資の達人になる投資講座などの無料動画も配信中！株式投資から家計見直しまで、包括的に金融情報を学習できます。
Canonical
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: —
IP address: —
ASN: —

DNS records

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

TLS / SSL certificate

Version: TLS 1.2
Issuer: Amazon
Subject: gfs.tokyo
Valid from: Apr 16, 2026
Valid to: Oct 30, 2026
Days until expiry: 87
SAN domains: gfs.tokyo

Security headers

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

Compression: gzip · 5 cookie(s) observed

Content & assets

Headings

H1 1 · H2 8 · H3 15

Links

5 internal · 4 external · 9 broken

Images

45 total · 1 missing alt

Scripts / Styles

15 scripts · 7 stylesheets

JS / CSS size

496 B · 0 B

Page size

62.9 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
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://gfs.tokyo
Final URL: https://gfs.tokyo:443/introduction/
HTTP status: 200
HTTP version: HTTP/2
Response time: 1.02 s
HTML size: 62.9 KB
Redirect chain: https://gfs.tokyo → https://gfs.tokyo/introduction → http://gfs.tokyo/introduction/ → https://gfs.tokyo:443/introduction/

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Frequently asked questions

What technology does gfs.tokyo use?: gfs.tokyo is built with PHP, jQuery, Google Analytics, Nginx.
Is gfs.tokyo secure (HTTPS)?: Yes. gfs.tokyo uses TLS 1.2 with a certificate issued by Amazon, valid until Oct 30, 2026.
Who hosts gfs.tokyo?: Hosting provider information for gfs.tokyo is not available yet.
What is gfs.tokyo's SEO score?: gfs.tokyo scored 75/100 for SEO in the latest analysis (fair).
What is gfs.tokyo's overall website score?: gfs.tokyo has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
Has gfs.tokyo's score changed over time?: gfs.tokyo's overall score has declined by 3 points (from 87 to 84) since Jul 27, 2026.