gcolle.net
Gcolle | TOP
Last scanned Jul 26, 2026, 5:47 AM
Overall score
Fair
Summary
Gcolle�ϡ��Ŀͻ��ƤΥ�������ư�衦�����Υ��������������䡦�������Ǥ����ޡ����åȥץ쥤���Ǥ���. This website uses Nginx. SEO is good (80/100) and accessibility is good (85/100). Security scores fair (65/100) and performance good (80/100). Top issue: No H1 heading found.
Gcolle�ϡ��Ŀͻ��ƤΥ�������ư�衦�����Υ��������������䡦�������Ǥ����ޡ����åȥץ쥤���Ǥ���
Top issues to fix
10 issues found · 4 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.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
+4 more issues — details in the sections below.
SEO
3 issue(s) found
Performance
2.92 s
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Organization
Company details published in this site's own structured data.
Gcolle�ϡ��Ŀͻ��ƤΥ�������ư�衦�����Υ��������������䡦�������Ǥ����ޡ����åȥץ쥤���Ǥ���
Contact
Email, phone, and address published on this site's own pages.
- info@gcolle.net
Meta tags
- Title
- Gcolle | TOP
- Description
- Gcolle�ϡ��Ŀͻ��ƤΥ�������ư�衦�����Υ��������������䡦�������Ǥ����ޡ����åȥץ쥤���Ǥ���
- Canonical
- https://gcolle.net/
- Language
- ja
- Charset
- EUC-JP
- Viewport
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
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
- GlobalSign nv-sa
- Subject
- www.gcolle.net
- Valid from
- May 11, 2026
- Valid to
- Nov 26, 2026
- Days until expiry
- 120
- SAN domains
- www.gcolle.net, gcolle.net
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
131 internal · 5 external · 20 broken
Images
107 total · 0 missing alt
Scripts / Styles
15 scripts · 6 stylesheets
JS / CSS size
1.6 KB · 328 B
Page size
142 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
- Missing viewport meta tag
Scan details
- Requested URL
- https://gcolle.net
- Final URL
- https://gcolle.net
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 2.91 s
- HTML size
- 142 KB
- Redirect chain
- https://gcolle.net
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does gcolle.net use?
- gcolle.net is built with jQuery, Google Analytics, Nginx.
- Is gcolle.net secure (HTTPS)?
- Yes. gcolle.net uses TLS 1.2 with a certificate issued by GlobalSign nv-sa, valid until Nov 26, 2026.
- Who hosts gcolle.net?
- Hosting provider information for gcolle.net is not available yet.
- What is gcolle.net's SEO score?
- gcolle.net scored 80/100 for SEO in the latest analysis (great).
- What is gcolle.net's overall website score?
- gcolle.net has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card