Does hatena.com use cookies?

hatena.com uses 13 cookies, 13 of which are set by third-party domains. No consent management platform was detected.

Does hatena.com use a cookie banner (CMP)?

No consent management platform (cookie banner) was detected on hatena.com. Since the site sets non-essential cookies or loads third-party trackers, it may not meet GDPR and ePrivacy prior-consent requirements.

Which third-party trackers does hatena.com use?

hatena.com loads 56 third-party requests from 23 vendors, including Adagio, AdDelivery, AdmanMedia, Criteo, CyberAgent.

How many marketing and analytics cookies does hatena.com set?

hatena.com sets 2 marketing and 9 analytics cookies, alongside 0 strictly necessary cookies. Under GDPR and the ePrivacy Directive, non-essential cookies require prior consent.

hatena.com

Item: hatena.com
Author: Passiro

https://hatena.com

Last scanned Jul 16, 2026

A cookie scan of hatena.com completed on July 16, 2026 found 13 cookies and 56 third-party tracking requests. No consent management platform was detected. Our check observed 56 third-party requests from 23 vendors, which require prior consent under GDPR and the ePrivacy Directive.

Claim & unlock

Third-party

Trackers

Vendors

Consent banner

None detected

Scans

Cookies

13 cookies detected: 0 necessary, 9 analytics, 2 marketing, 13 third-party

Total

Necessary

Functional

Analytics

Marketing

Unknown

13 third-party cookies detected

Third-party cookies require explicit user consent under GDPR/ePrivacy.

Filter by category

Name	Domain	Category	Provider	Expiry	Secure	HttpOnly	Party
_ga	.hatena.ne.jp	Analytics	Google Analytics	1.1 yr	–	–	3rd
_gat_UA-47034238-2	.hatena.ne.jp	Analytics	Google Analytics	Expired	–	–	3rd
_ga_6J1ZXVTZGY	.hatena.ne.jp	Analytics	Google Analytics	1.1 yr	–	–	3rd
_ga_QM5HX8W79Z	.hatena.ne.jp	Analytics	Google Analytics	1.1 yr	–	–	3rd
_gid	.hatena.ne.jp	Analytics	Google Analytics	Expired	–	–	3rd
__utma	.hatena.ne.jp	Analytics	Google Analytics	1.1 yr	–	–	3rd
__utmb	.hatena.ne.jp	Analytics	Google Analytics	Expired	–	–	3rd
__utmc	.hatena.ne.jp	Analytics	Google Analytics	Session	–	–	3rd
__utmz	.hatena.ne.jp	Analytics	Google Analytics	178 d	–	–	3rd
cto_bundle	.hatena.ne.jp	Marketing	Criteo	1.1 yr	–	–	3rd
_dc_gtm_UA-47034238-1	.hatena.ne.jp	Marketing	Google Tag Manager	Expired	–	–	3rd
b	.hatena.ne.jp	Unknown	-	1.1 yr	–	–	3rd
__eoi	.hatena.ne.jp	Unknown	-	175 d	✓	–	3rd

Third-Party Trackers

56 requests detected from 23 vendors: Adagio, AdDelivery, AdmanMedia, Criteo, CyberAgent...

Analytics

Marketing

Necessary

Functional

Other

Vendor	Category	Type	Domain
Adagio	Advertising	script	mp.4dex.io
AdDelivery	Advertising	script	ad-delivery.net
AdmanMedia	Advertising	script	cs.admanmedia.com
Criteo	Advertising	script	grid-bidder.criteo.com
Criteo	Advertising	script	static.criteo.net
Criteo	Advertising	pixel	x.bidswitch.net
CyberAgent	Advertising	script	ad.as.amanad.adtdp.com
DT	Advertising	script	tr.blismedia.com
eyeo	Advertising	script	btloader.com
Google	Advertising	script	ep1.adtrafficquality.google
Hakuhodo DY Holdings	Advertising	script	y.one.impact-ad.jp
Hatena	Advertising	script	www.hatena.ne.jp
Hatena	Advertising	script	cdn-ak2.favicon.st-hatena.com
Magnite	Advertising	script	fastlane.rubiconproject.com
MicroAd	Advertising	script	s-rtb-pb.send.microad.jp
Microsoft	Advertising	script	ib.adnxs.com
Nexxen	Advertising	script	ad.turn.com
Ogury	Advertising	script	mweb-hb.presage.io
Opera	Advertising	script	t.adx.opera.com
PubMatic	Advertising	script	hbopenbid.pubmatic.com
RTBHouse	Advertising	script	prebid-asia.creativecdn.com
So-netMediaNetworks	Advertising	script	pb.ladsp.com
Supership	Advertising	script	d.socdm.com
Google LLC	Analytics	script	www.googletagmanager.com
Volentio JSD	Essential	script	cdn.jsdelivr.net
Google LLC	Necessary	script	fonts.googleapis.com
Google LLC	Necessary	script	fonts.gstatic.com
Google	Other	script	www.google-analytics.com
Google	Other	script	stats.g.doubleclick.net
Google	Other	script	pagead2.googlesyndication.com
OpenX	Other	script	rtb.openx.net