cotosaga.com
イベント情報サイト「ことさが」
Last scanned Aug 24, 2026, 1:22 PM
Overall score
Fair
Summary
「そんなイベントあったんだ！」日本全国のイベント・新商品・キャンペーン情報を日付、場所から探せる・教えてくれる！総合イベント情報サイト「ことさが」. This website uses PHP behind Cloudflare CDN. SEO is good (75/100) and accessibility is good (85/100). Security scores fair (65/100) and performance good (80/100). Top issue: Meta description longer than 160 characters.
「そんなイベントあったんだ！」日本全国のイベント・新商品・キャンペーン情報を日付、場所から探せる・教えてくれる！総合イベント情報サイト「ことさが」
Top issues to fix
11 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.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
+5 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
2.92 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
「そんなイベントあったんだ！」日本全国のイベント・新商品・キャンペーン情報を日付、場所から探せる・教えてくれる！総合イベント情報サイト「ことさが」
Meta tags
- Title
- イベント情報サイト「ことさが」
- Description
- 「そんなイベントあったんだ！」日本全国のイベント・新商品・キャンペーン情報を日付、場所から探せる・教えてくれる！総合イベント情報サイト「ことさが」
- Canonical
- https://cotosaga.com/
- Language
- ja
- Charset
- UTF-8
- Viewport
- width=1000,initial-scale=0.42
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- cotosaga.com
- Valid from
- Aug 17, 2026
- Valid to
- Nov 15, 2026
- Days until expiry
- 82
- SAN domains
- *.cotosaga.com, cotosaga.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 7 · H3 89
Links
201 internal · 10 external · 2 broken
Images
270 total · 71 missing alt
Scripts / Styles
36 scripts · 8 stylesheets
JS / CSS size
3.9 KB · 9.3 KB
Page size
77.4 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- More than 20% of images are missing alt text
Scan details
- Requested URL
- https://cotosaga.com
- Final URL
- https://cotosaga.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 2.91 s
- HTML size
- 77.4 KB
- Redirect chain
- https://cotosaga.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does cotosaga.com use?
- cotosaga.com is built with PHP, jQuery, Google Analytics, Cloudflare Analytics, Google Ads, Meta Pixel.
- Is cotosaga.com secure (HTTPS)?
- Yes. cotosaga.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 15, 2026.
- Who hosts cotosaga.com?
- Hosting provider information for cotosaga.com is not available yet.
- What is cotosaga.com's SEO score?
- cotosaga.com scored 75/100 for SEO in the latest analysis (fair).
- What is cotosaga.com's overall website score?
- cotosaga.com has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card