gcolle.net
Gcolle
Last scanned Aug 6, 2026, 12:00 AM · 25 views
Overall score
Fair
Summary
Gcolle is OPEN MARKET of Japanese digital contents. This website uses Nginx. SEO is fair (65/100) and accessibility is good (85/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: No H1 heading found.
Gcolle is OPEN MARKET of Japanese digital contents. You can download Japanese digital contents, such as photos, images, and moving images.
Top issues to fix
12 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.
+6 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
891 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Score history
+1 overall since Jul 26, 2026
- Overall
- 78
- SEO
- 65
- Security
- 65
- Performance
- 100
- Accessibility
- 85
Organization
Company details published in this site's own structured data.
Gcolle is OPEN MARKET of Japanese digital contents. You can download Japanese digital contents, such as photos, images, and moving images.
Meta tags
- Title
- Gcolle
- Description
- Gcolle is OPEN MARKET of Japanese digital contents. You can download Japanese digital contents, such as photos, images, and moving images.
- Canonical
- https://gcolle.net/
- Language
- en
- 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
- 112
- 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 2 · H3 0
Links
9 internal · 8 external · 2 broken
Images
7 total · 0 missing alt
Scripts / Styles
9 scripts · 8 stylesheets
JS / CSS size
980 B · 0 B
Page size
146 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
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- 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
- 889 ms
- HTML size
- 146 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 65/100 for SEO in the latest analysis (fair).
- What is gcolle.net's overall website score?
- gcolle.net has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.
- Has gcolle.net's score changed over time?
- gcolle.net's overall score has improved by 1 point (from 77 to 78) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card