gfs.tokyo
GFS｜お金を武器にする投資スクール・動画講座
Last scanned Jul 27, 2026, 2:43 PM
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 hosted on AWS. SEO is good (85/100) 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。
- United States
- Hosted on AWS
Top issues to fix
7 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
4 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
+1 more issue — details in the sections below.
SEO
3 issue(s) found
Performance
1.11 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
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。
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.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- —
- IP address
- 57.181.8.253
- ASN
- AS16509 (AMAZON-02 - Amazon.com, Inc., US)
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
- 95
- 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 · 0 broken
Images
45 total · 1 missing alt
Scripts / Styles
15 scripts · 7 stylesheets
JS / CSS size
600 KB · 208 KB
Page size
62.9 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 4
- sitemap.xml
- Found
- URLs in sitemap
- 8251
SEO issues
- Title longer than 60 characters
- Meta description longer than 160 characters
- Missing canonical link
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://gfs.tokyo
- Final URL
- https://gfs.tokyo:443/introduction/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.11 s
- HTML size
- 62.9 KB
- Redirect chain
- https://gfs.tokyo → https://gfs.tokyo/introduction → http://gfs.tokyo/introduction/ → https://gfs.tokyo:443/introduction/
See something wrong on this report? Request a correction
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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?
- gfs.tokyo is hosted on AWS.
- What is gfs.tokyo's SEO score?
- gfs.tokyo scored 85/100 for SEO in the latest analysis (great).
- What is gfs.tokyo's overall website score?
- gfs.tokyo has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card