What technology does yahoo.co.jp use?

We did not detect any specific technologies for yahoo.co.jp in the latest scan.

Is yahoo.co.jp secure (HTTPS)?

Yes. yahoo.co.jp uses TLS 1.3 with a certificate issued by Cybertrust Japan Co., Ltd., valid until Dec 4, 2026.

Who hosts yahoo.co.jp?

Hosting provider information for yahoo.co.jp is not available yet.

What is yahoo.co.jp's SEO score?

yahoo.co.jp scored 70/100 for SEO in the latest analysis (fair).

What is yahoo.co.jp's overall website score?

yahoo.co.jp has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.

Has yahoo.co.jp's score changed over time?

yahoo.co.jp's overall score has improved by 5 points (from 81 to 86) since Jul 15, 2026.

yahoo.co.jp

Yahoo! JAPAN

Last scanned Jul 29, 2026, 11:00 AM · 14 views

Overall score

Great

Summary

あなたの毎日をアップデートする情報ポータル。検索、ニュース、天気、スポーツ、メール、ショッピング、オークションなど便利なサービスを展開しています。. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

あなたの毎日をアップデートする情報ポータル。検索、ニュース、天気、スポーツ、メール、ショッピング、オークションなど便利なサービスを展開しています。

Top issues to fix

9 issues found · 2 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
2 cookies without Secure/HttpOnly flags
Security
Set 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
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

+3 more issues — details in the sections below.

SEO

5 issue(s) found

100

Performance

282 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+5 overall since Jul 15, 2026

Overall: 86
SEO: 70
Security: 80
Performance: 100
Accessibility: 100

Organization

Company details published in this site's own structured data.

Meta tags

Title: Yahoo! JAPAN
Description: あなたの毎日をアップデートする情報ポータル。検索、ニュース、天気、スポーツ、メール、ショッピング、オークションなど便利なサービスを展開しています。
Canonical: https://www.yahoo.co.jp/
Language: ja
Charset: utf-8
Viewport: width=1010
Robots meta: noodp
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

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 1.3
Issuer: Cybertrust Japan Co., Ltd.
Subject: edge01.yahoo.co.jp
Valid from: Nov 5, 2025
Valid to: Dec 4, 2026
Days until expiry: 128
SAN domains: edge01.yahoo.co.jp, *.yahoo.co.jp, *.yahooapis.jp, *.ane.yahoo.co.jp, *.auctions.yahoo.co.jp, *.auctions.yahooapis.jp, *.box.yahooapis.jp, *.bylines.news.yahoo.co.jp, *.c.yimg.jp, *.carnavi.yahooapis.jp, *.carview.co.jp, *.carview.yahoo.co.jp, *.chiebukuro.yahoo.co.jp, *.clorder.yahoo.co.jp, *.cvw.jp, *.digitalguide.jp, *.east.edge.storage-yahoo.jp, *.east.edge.storage-yahoobox.jp, *.edge.storage-yahoo.jp, *.edit.yahooapis.jp, *.finance.yahoo.co.jp, *.geocities.jp, *.global.edge.storage-yahoo.jp, *.gyao.yahoo.co.jp, *.jobcatalog.yahoo.co.jp, *.listing.yahoo.co.jp, *.loco.yahoo.co.jp, *.lycorp.co.jp, *.mail.yahoo.co.jp, *.marketing.yahoo.co.jp, *.mkcloud-api.carview.co.jp, *.mkimg.carview.co.jp, *.ms.yahoo.co.jp, *.lycorp-security.jp, *.news.yahoo.co.jp, *.news.yahooapis.jp, *.order.yahoo.co.jp, *.points.yahoo.co.jp, *.psi.yahoo.co.jp, activity.travel.yahoo-net.jp, *.search.yahooapis.jp, *.shopping.c.yimg.jp, *.shopping.srv.yimg.jp, *.shopping.yahoo.co.jp, *.shopping.yahooapis.jp, *.snsimg.carview.co.jp, *.store.yahoo.co.jp, *.travel.yahoo.co.jp, *.wallet.yahoo.co.jp, *.wallet.yahooapis.jp, *.webhosting.yahoo.co.jp, *.west.edge.storage-yahoo.jp, *.west.edge.storage-yahoobox.jp, *.xml.listing.yahoo.co.jp, *.yahoo-help.jp, *.yahoo-net.jp, *.yahoo.jp, *.yahoobox.jp, *.yimg.jp, *.yjtag.jp, *.yjtag.yahoo.co.jp, *.ys-insurance.co.jp, *.push.yahooapis.jp, add.dir.yahoo.co.jp, api.y.clorder.yahoo.co.jp, arc.help.yahoo.co.jp, biztx.points.yahooapis.jp, carview.co.jp, cgi2.r-agent.yahoo.co.jp, cksync.pdsp.yahoo.co.jp, cm.froma.yahoo.co.jp, compass.ymobile.yahoo.co.jp, custom.search.yahoo.co.jp, e.developer.yahoo.co.jp, forms.business.yahoo.co.jp, frame.games.yahoo.co.jp, hrm.grmtrez.yahoo.co.jp, im.ov.yahoo.co.jp, info.hatalike.yahoo.co.jp, movie.chocotle.yahoo.co.jp, online.security.yahoo.co.jp, poiedit.map.yahoo.co.jp, portal.yadui.business.yahoo.co.jp, ssl-tools.kainavi.search.yahoo.co.jp, ssl.api.olp.yahooapis.jp, ssl.map.srv.yimg.jp, www.bosaiguide.jp, www.lohaco.yahoo.co.jp, www.search311.jp, www.sp-hinan.jp, www.techbasevn.com, yahoo.co.jp, yahoo.jp, yj.pn, yjtag.jp

Security headers

Strict-Transport-SecurityMissing
Content-Security-PolicyMissing
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyMissing
Permissions-PolicyEnabled

Compression: gzip · 4 cookie(s) observed

Content & assets

Headings

H1 16 · H2 0 · H3 0

Links

0 internal · 48 external · 20 broken

Images

1 total · 0 missing alt

Scripts / Styles

11 scripts · 1 stylesheets

JS / CSS size

2.2 KB · 0 B

Page size

33.5 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
Multiple H1 headings found
No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://yahoo.co.jp
Final URL: https://www.yahoo.co.jp:443/
HTTP status: 200
HTTP version: HTTP/2
Response time: 282 ms
HTML size: 33.5 KB
Redirect chain: https://yahoo.co.jp → https://www.yahoo.co.jp:443/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does yahoo.co.jp use?: We did not detect any specific technologies for yahoo.co.jp in the latest scan.
Is yahoo.co.jp secure (HTTPS)?: Yes. yahoo.co.jp uses TLS 1.3 with a certificate issued by Cybertrust Japan Co., Ltd., valid until Dec 4, 2026.
Who hosts yahoo.co.jp?: Hosting provider information for yahoo.co.jp is not available yet.
What is yahoo.co.jp's SEO score?: yahoo.co.jp scored 70/100 for SEO in the latest analysis (fair).
What is yahoo.co.jp's overall website score?: yahoo.co.jp has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
Has yahoo.co.jp's score changed over time?: yahoo.co.jp's overall score has improved by 5 points (from 81 to 86) since Jul 15, 2026.