gigazine.net
GIGAZINE（ギガジン）
Last scanned Jul 25, 2026, 10:25 PM · 3 views
Overall score
Great
Summary
日々のあらゆるシーンで役立つ情報を提供するIT系ニュースサイト。毎日更新中。. This website uses Cloudflare Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is good (85/100) and accessibility is fair (60/100). Security scores good (85/100) and performance excellent (100/100). Top issue: No H1 heading found.
日々のあらゆるシーンで役立つ情報を提供するIT系ニュースサイト。毎日更新中。
- United States
- Hosted on Cloudflare
Top issues to fix
5 issues found · 3 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
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.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
SEO
2 issue(s) found
Performance
17 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Organization
Company details published in this site's own structured data.
日々のあらゆるシーンで役立つ情報を提供するIT系ニュースサイト。毎日更新中。
Meta tags
- Title
- GIGAZINE（ギガジン）
- Description
- 日々のあらゆるシーンで役立つ情報を提供するIT系ニュースサイト。毎日更新中。
- Canonical
- https://gigazine.net/
- Language
- ja
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- max-image-preview:large
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 172.66.132.177
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT | — |
| NS |
|
| CAA |
|
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- gigazine.net
- Valid from
- Jul 18, 2026
- Valid to
- Oct 16, 2026
- Days until expiry
- 82
- SAN domains
- gigazine.net, *.gigazine.net
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 40 · H3 0
Links
81 internal · 4 external · 0 broken
Images
45 total · 28 missing alt
Scripts / Styles
24 scripts · 1 stylesheets
JS / CSS size
260 KB · 5.5 KB
Page size
99.5 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 87
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No H1 heading found
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
- No H1 heading found
Scan details
- Requested URL
- https://gigazine.net
- Final URL
- https://gigazine.net
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 15 ms
- HTML size
- 99.5 KB
- Redirect chain
- https://gigazine.net
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does gigazine.net use?
- gigazine.net is built with jQuery, Cloudflare Analytics, Google Ads.
- Is gigazine.net secure (HTTPS)?
- Yes. gigazine.net uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 16, 2026.
- Who hosts gigazine.net?
- gigazine.net is hosted on Cloudflare, behind Cloudflare CDN.
- What is gigazine.net's SEO score?
- gigazine.net scored 85/100 for SEO in the latest analysis (great).
- What is gigazine.net's overall website score?
- gigazine.net has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card