What does nicovideo.jp track?
Before any consent, nicovideo.jp loaded 24 tracking companies and set 27 advertising or analytics cookies.
That's more tracking companies than 99% of the 2,450 sites we scanned. Among the 21 other .jp sites we scanned, the typical one loaded 7 tracking companies — nicovideo.jp loaded more.
Scanned October 2, 2026 from Germany, loading www.nicovideo.jp once and clicking nothing. How we scan
- Tracking companies
- 24
- Tracking cookies
- 27
- Third-party hosts
- 85
- Cookies in total
- 40
Consent banner
No known consent management platform was detected on the page.
Companies contacted before consent
21 of the 34 companies it contacted before consent were advertising companies.
- Google Ads76 requestsAdvertising
pagead2.googlesyndication.com, securepubads.g.doubleclick.net, ep2.adtrafficquality.google, ep1.adtrafficquality.google
- Criteo60 requestsAdvertising
static.criteo.net, ssp-sync.criteo.com, imageproxy.eu.criteo.net, client-side-metrics.nl3.eu.criteo.net
- Magnite16 requestsAdvertising
micro.rubiconproject.com, secure-assets.rubiconproject.com, fastlane.rubiconproject.com, prebid-a.rubiconproject.com
- PubMatic16 requestsAdvertising
ut.pubmatic.com, hbopenbid.pubmatic.com, ads.pubmatic.com
- Xandr (Microsoft)14 requestsAdvertising
ib.adnxs.com, acdn.adnxs.com, secure.adnxs.com
- Index Exchange9 requestsAdvertising
htlb.casalemedia.com, js-sec.indexww.com, ssum-sec.casalemedia.com
- CyberCommunications (Impact)9 requestsAdvertising
y.one.impact-ad.jp
- OpenX8 requestsAdvertising
rtb.openx.net, dwango-d.openx.net
- LiveRamp6 requestsAdvertising
check.analytics.rlcdn.com, api.rlcdn.com, pb.ladsp.com
- Amazon Advertising4 requestsAdvertising
c.amazon-adsystem.com, config.aps.amazon-adsystem.com, web-banner.ads.aps.amazon-adsystem.com
- Supership4 requestsAdvertising
d.socdm.com
- MicroAd4 requestsAdvertising
s-rtb-pb.send.microad.jp
- Media.net4 requestsAdvertising
prebid.media.net
- BidSwitch4 requestsAdvertising
x.bidswitch.net
- Opera Ads4 requestsAdvertising
t.adx.opera.com, t.oa.opera.com
- Yahoo Japan3 requestsAdvertising
s.yimg.jp, b99.yahoo.co.jp, apm.yahoo.co.jp
- AdStir3 requestsAdvertising
ad.ad-stir.com
- Amobee (Turn)2 requestsAdvertising
ad.turn.com
- AdMan Media2 requestsAdvertising
cs.admanmedia.com
- Blis2 requestsAdvertising
tr.blismedia.com
- The Trade Desk1 requestAdvertising
match.adsrvr.org
- X (Twitter)29 requestsSocial media
t.co, analytics.twitter.com, static.ads-twitter.com
- Google Analytics21 requestsAnalytics
www.googletagmanager.com, region1.analytics.google.com
- Microsoft Clarity5 requestsAnalytics
i.clarity.ms, www.clarity.ms, scripts.clarity.ms
Other third parties (content delivery, consent, functional, unclassified)
- nimg.jp30 requestsUnclassified
resource.video.nimg.jp, nicovideo.cdn.nimg.jp, assets.embed.res.nimg.jp, img.nicoprofile.nimg.jp
- ad-delivery.net4 requestsUnclassified
ad-delivery.net
- adingo.jp3 requestsUnclassified
hb.adingo.jp
- mediagotechnology.com2 requestsUnclassified
go.mediagotechnology.com
- temu.com2 requestsUnclassified
www.temu.com
- flvcdn.net1 requestUnclassified
tag.flvcdn.net
- adtdp.com1 requestUnclassified
ad.as.amanad.adtdp.com
- Google54 requestsFunctional
fonts.gstatic.com, www.google.com, fonts.googleapis.com
- jsDelivr4 requestsContent delivery
cdn.jsdelivr.net
- Cloudflare2 requestsContent delivery
cdnjs.cloudflare.com
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 |
|---|---|---|---|
| _gcl_au | Advertising | nicovideo.jp | 3 months |
| _lr_env_src_ats | Advertising | ads.nicovideo.jp | 30 days |
| _lr_retry_request | Advertising | ads.nicovideo.jp | Under a day |
| 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 | nicovideo.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 |
| 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 |
| _ga | Analytics | nicovideo.jp | 13 months |
| _ga_5LM4HED1NJ | Analytics | nicovideo.jp | 13 months |
| _ga_FS29H4ZGX2 | Analytics | nicovideo.jp | 13 months |
| _lr_sampling_rate | Unclassified | ads.nicovideo.jp | 7 days |
| _twpid | Unclassified | nicovideo.jp | 13 months |
| _twsid | Unclassified | nicovideo.jp | 13 months |
| _yjsu_yjad | Unclassified | nicovideo.jp | 12 months |
| nicosid | Unclassified | nicovideo.jp | 13 months |
| pbjs_sharedId | Unclassified | nicovideo.jp | 30 days |
| pbjs_sharedId_cst | Unclassified | nicovideo.jp | 30 days |
| __cf_bm | Functional | t.co (third party) | Under a day |
| __cf_bm | Functional | twitter.com (third party) | Under a day |
| __cf_bm | Functional | temu.com (third party) | Under a day |
| receive-cookie-deprecation | Functional | prebid.media.net (third party) | 6 months |
| receive-cookie-deprecation | Functional | adtdp.com (third party) | 6 months |
| __eoi | Necessary | nicovideo.jp | 6 months |
The page also wrote 3 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.