What does kakuyomu.jp track?
Before any consent, kakuyomu.jp loaded 18 tracking companies and set 30 advertising or analytics cookies.
That's more tracking companies than 97% of the 2,450 sites we scanned. Among the 21 other .jp sites we scanned, the typical one loaded 7 tracking companies — kakuyomu.jp loaded more.
Scanned October 2, 2026 from Germany, loading kakuyomu.jp once and clicking nothing. How we scan
- Tracking companies
- 18
- Tracking cookies
- 30
- Third-party hosts
- 52
- Cookies in total
- 39
Consent banner
No known consent management platform was detected on the page.
Companies contacted before consent
14 of the 27 companies it contacted before consent were advertising companies.
- Supership10 requestsAdvertising
d.socdm.com, tg.socdm.com, i.socdm.com
- Criteo9 requestsAdvertising
ssp-sync.criteo.com, gum.criteo.com, grid-bidder.criteo.com
- Google Ads6 requestsAdvertising
stats.g.doubleclick.net, cm.g.doubleclick.net, ad.doubleclick.net, www.google.de
- CyberCommunications (Impact)6 requestsAdvertising
y.one.impact-ad.jp
- Xandr (Microsoft)5 requestsAdvertising
ib.adnxs.com, acdn.adnxs.com, secure.adnxs.com
- PubMatic4 requestsAdvertising
ut.pubmatic.com, hbopenbid.pubmatic.com, ads.pubmatic.com
- Yahoo Japan2 requestsAdvertising
s.yimg.jp, apm.yahoo.co.jp
- OpenX2 requestsAdvertising
rtb.openx.net, kadokawa-d.openx.net
- BidSwitch2 requestsAdvertising
x.bidswitch.net
- Opera Ads2 requestsAdvertising
t.adx.opera.com, t.oa.opera.com
- MicroAd1 requestAdvertising
s-rtb-pb.send.microad.jp
- Amobee (Turn)1 requestAdvertising
ad.turn.com
- AdMan Media1 requestAdvertising
cs.admanmedia.com
- Blis1 requestAdvertising
tr.blismedia.com
- X (Twitter)11 requestsSocial media
platform.twitter.com, syndication.twitter.com, t.co, analytics.twitter.com
- Meta8 requestsSocial media
connect.facebook.net, www.facebook.com, static.xx.fbcdn.net
- Google Analytics7 requestsAnalytics
www.googletagmanager.com, www.google-analytics.com, region1.analytics.google.com
- Microsoft Clarity3 requestsAnalytics
www.clarity.ms, scripts.clarity.ms, l.clarity.ms
Other third parties (content delivery, consent, functional, unclassified)
- adtdp.com2 requestsUnclassified
ad.as.amanad.adtdp.com
- hatena.ne.jp1 requestUnclassified
b.hatena.ne.jp
- mediagotechnology.com1 requestUnclassified
go.mediagotechnology.com
- uncn.jp1 requestUnclassified
ds.uncn.jp
- temu.com1 requestUnclassified
www.temu.com
- Hatena8 requestsFunctional
b.st-hatena.com, cdn.pool.st-hatena.com
- Sentry3 requestsFunctional
o148425.ingest.sentry.io
- Google3 requestsFunctional
www.google.com
- jsDelivr1 requestContent delivery
cdn.jsdelivr.net
Cookies set before consent
The longest-lived tracking cookie it set was guest_id, from X (Twitter), lasting about 13 months.
| Cookie | Purpose | Set by | Lasts |
|---|---|---|---|
| _fbp | Advertising | kakuyomu.jp | 3 months |
| _gcl_au | Advertising | kakuyomu.jp | 3 months |
| ac_r | Advertising | admanmedia.com (third party) | 7 days |
| admtr | Advertising | admanmedia.com (third party) | 7 days |
| b | Advertising | blismedia.com (third party) | 12 months |
| c | Advertising | impact-ad.jp (third party) | 12 months |
| c | Advertising | bidswitch.net (third party) | 12 months |
| cto_bundle | Advertising | criteo.com (third party) | 13 months |
| cto_bundle | Advertising | kakuyomu.jp | 13 months |
| custom_data | Advertising | bidswitch.net (third party) | Under a day |
| guest_id | Advertising | twitter.com (third party) | 13 months |
| guest_id_ads | Advertising | twitter.com (third party) | 13 months |
| guest_id_marketing | Advertising | twitter.com (third party) | 13 months |
| icu | Advertising | adnxs.com (third party) | 3 months |
| IDE | Advertising | doubleclick.net (third party) | 13 months |
| muc_ads | Advertising | t.co (third party) | 13 months |
| OAU | Advertising | opera.com (third party) | 12 months |
| personalization_id | Advertising | twitter.com (third party) | 13 months |
| tuuid | Advertising | impact-ad.jp (third party) | 12 months |
| tuuid | Advertising | bidswitch.net (third party) | 12 months |
| tuuid_lu | Advertising | impact-ad.jp (third party) | 12 months |
| tuuid_lu | Advertising | bidswitch.net (third party) | 12 months |
| uid | Advertising | criteo.com (third party) | 13 months |
| uid | Advertising | turn.com (third party) | 6 months |
| uuid2 | Advertising | adnxs.com (third party) | 3 months |
| XANDR_PANID | Advertising | adnxs.com (third party) | 3 months |
| _dc_gtm_UA-68213644-3 | Analytics | kakuyomu.jp | Under a day |
| _ga | Analytics | kakuyomu.jp | 13 months |
| _ga_R8G9341WV8 | Analytics | kakuyomu.jp | 13 months |
| _gid | Analytics | kakuyomu.jp | 1 day |
| _twpid | Unclassified | kakuyomu.jp | 13 months |
| _twsid | Unclassified | kakuyomu.jp | 13 months |
| _yjsu_yjad | Unclassified | kakuyomu.jp | 12 months |
| pbid | Unclassified | kakuyomu.jp | 13 months |
| __cf_bm | Functional | twitter.com (third party) | Under a day |
| __cf_bm | Functional | t.co (third party) | Under a day |
| __cf_bm | Functional | temu.com (third party) | Under a day |
| receive-cookie-deprecation | Functional | adtdp.com (third party) | 6 months |
| t | Functional | uncn.jp (third party) | 12 months |
The page also wrote 5 keys to local storage, which works like a cookie but isn't sent with requests.
Understanding this page
- How to see which cookies and trackers a website loads
A hands-on walkthrough for checking what a site sets before you've clicked anything, using Chrome and Firefox's built-in tools, plus how CookieTosser automates the same check every month.
- What counts as valid cookie consent in the EU
The rules that actually govern cookie banners — the ePrivacy Directive, the GDPR consent standard, the Planet49 ruling, the strictly-necessary exemption, and what "reject" has to offer compared with "accept.
- Consent management platforms explained
What a CMP banner is actually doing behind the scenes, how the IAB's TCF standard and Google's Consent Mode v2 fit in, and why a banner being present is no guarantee that nothing loads before you answer it.