EventsGateway EVENTS
Gateway
Dashboard
Dashboard
Tracking Reference

Broad attribution parameter coverage for EVENTS Gateway

This public page lists every parameter currently captured into click_ids by the browser tracker. The list is generated from the current tracker source so it stays aligned with production behavior.

Back to Docs Open Pricing
Coverage

One public reference for every tracked attribution parameter.

This reference covers broad marketing attribution, not only strict ad click identifiers. It includes ad platform IDs, ESP parameters, campaign metadata, referral metadata, and selected cookie-derived identifiers.

260 tracked parameters

Total parameters currently listed on this page from the active tracker implementation.

48 ad click IDs

Strict or near-strict ad click identifiers from major ad platforms and partner tools.

80 email and CRM IDs

Parameters used by ESP, CRM, lifecycle, newsletter, and onsite tracking tools.

132 broad attribution fields

Campaign, referral, analytics, and deep-link metadata captured for broader attribution context.

What This Page Is

A live implementation reference.

This page is based on the exact parameter list used by the current tracker source. It is useful when you need to confirm whether a marketing platform or ESP-specific parameter is recognized on landing.

  • Query parameters are matched case-insensitively.
  • Most listed keys are captured from either the URL query string or a cookie with the same name.
  • Some values are cookie-derived aliases, such as fbc, fbp, and __kla_id.
  • The browser tracker uses broad capture by design so teams can preserve more attribution context at landing time.
Typical Sources

Examples of platforms represented here.

The parameter list covers major ad platforms plus email, CRM, affiliate, analytics, and deep-link tooling.

Ads

Google Ads, Meta Ads, Microsoft Ads, TikTok, X, LinkedIn, Pinterest, Snapchat, Reddit, Taboola, Outbrain, Quora, Yahoo, and Yandex.

Email and CRM

Brevo, Klaviyo, Mailchimp, Marketo, HubSpot, Omnisend, MailerLite, BlueShift, Vero, Customer.io, and related lifecycle tools.

Partner and affiliate

Awin, ShareASale, CJ, Impact Radius, Redbrain, and other partner-driven campaign links.

Analytics and deep links

Adobe, Matomo, Branch, referral metadata, and campaign transport values used across attribution stacks.

Parameter List

Every parameter currently recognized by the tracker.

Use this table as the public reference for the current tracker implementation.

Visible rows 260
Parameter Bucket Typical Source
__hsfp Email and CRM attribution HubSpot
__hssc Email and CRM attribution HubSpot
__hstc Email and CRM attribution HubSpot
__kla_id Cookie-derived attribution Klaviyo browser cookie
__s Email and CRM attribution Mixed marketing and attribution tooling
_bhlid Email and CRM attribution Mixed marketing and attribution tooling
_branch_match_id Analytics, referral, or deep-link metadata Branch
_branch_referrer Analytics, referral, or deep-link metadata Branch
_hsenc Email and CRM attribution HubSpot
_hsmi Email and CRM attribution HubSpot
_ke Email and CRM attribution Mixed marketing and attribution tooling
_kx Email and CRM attribution Klaviyo
_openstat Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
_sc Email and CRM attribution Brevo
_se Email and CRM attribution Brevo
_z1_agid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
_z1_caid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
_z1_msid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
_z1_pub Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
ac_campaign_id Email and CRM attribution ActiveCampaign
ac_contact_id Email and CRM attribution ActiveCampaign
ac_email_id Email and CRM attribution ActiveCampaign
ad_id Campaign and ad metadata Mixed marketing and attribution tooling
adgroup_id Campaign and ad metadata Mixed marketing and attribution tooling
adid Ad click identifier Campaign and partner tracking
adj_adgroup Campaign and ad metadata Adjust
adj_campaign Campaign and ad metadata Adjust
adj_creative Campaign and ad metadata Adjust
adj_deeplink Campaign and ad metadata Adjust
adj_fallback Campaign and ad metadata Adjust
adj_label Campaign and ad metadata Adjust
adj_t Campaign and ad metadata Adjust
adobe_mc_ref Analytics, referral, or deep-link metadata Adobe
adobe_mc_sdid Analytics, referral, or deep-link metadata Adobe
adset_id Campaign and ad metadata Mixed marketing and attribution tooling
af_ad_id Campaign and ad metadata AppsFlyer
af_adset_id Campaign and ad metadata AppsFlyer
af_c_id Campaign and ad metadata AppsFlyer
af_prt Campaign and ad metadata AppsFlyer
af_siteid Campaign and ad metadata AppsFlyer
af_sub_siteid Campaign and ad metadata AppsFlyer
af_sub1 Campaign and ad metadata AppsFlyer
af_sub2 Campaign and ad metadata AppsFlyer
af_sub3 Campaign and ad metadata AppsFlyer
af_sub4 Campaign and ad metadata AppsFlyer
af_sub5 Campaign and ad metadata AppsFlyer
aff Analytics, referral, or deep-link metadata Affiliate links
aff_id Analytics, referral, or deep-link metadata Affiliate links
aff_sub Analytics, referral, or deep-link metadata Affiliate sub-tracking
aff_sub2 Analytics, referral, or deep-link metadata Affiliate sub-tracking
aff_sub3 Analytics, referral, or deep-link metadata Affiliate sub-tracking
aff_sub4 Analytics, referral, or deep-link metadata Affiliate sub-tracking
aff_sub5 Analytics, referral, or deep-link metadata Affiliate sub-tracking
affid Analytics, referral, or deep-link metadata Affiliate links
affiliate_id Analytics, referral, or deep-link metadata Affiliate links
afftrack Analytics, referral, or deep-link metadata Affiliate sub-tracking
afid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
alart Campaign and ad metadata AppLovin Axon Ads
aleid Ad click identifier AppLovin Axon Ads
ao_noptimize Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
at_recipient_id Email and CRM attribution Mixed marketing and attribution tooling
at_recipient_list Email and CRM attribution Mixed marketing and attribution tooling
auctid Ad click identifier Mixed marketing and attribution tooling
aw_adid Campaign and ad metadata Mixed marketing and attribution tooling
awc Ad click identifier Awin
awclid Ad click identifier Affiliate and partner links
bbeml Email and CRM attribution Mixed marketing and attribution tooling
bhcid Email and CRM attribution Mixed marketing and attribution tooling
braze_id Email and CRM attribution Braze
brz_euid Email and CRM attribution Braze
bsft_aaid Email and CRM attribution BlueShift
bsft_clkid Email and CRM attribution BlueShift
bsft_uid Email and CRM attribution BlueShift
c Campaign and ad metadata AppsFlyer
campaign Campaign and ad metadata Mixed marketing and attribution tooling
campaign_id Campaign and ad metadata Mixed marketing and attribution tooling
campaignid Campaign and ad metadata Impact Radius or partner tracking
cid Campaign and ad metadata Mixed marketing and attribution tooling
cio_campaign_id Email and CRM attribution Customer.io
cio_delivery_id Email and CRM attribution Customer.io
cio_id Email and CRM attribution Customer.io
cio_message_id Email and CRM attribution Customer.io
cjdata Ad click identifier Commission Junction
cjevent Ad click identifier Commission Junction
ck_subscriber_id Email and CRM attribution Mixed marketing and attribution tooling
click_id Ad click identifier Generic click tracking
clickid Ad click identifier Mixed marketing and attribution tooling
clickref Ad click identifier Affiliate and partner links
cn_reloaded Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
convertkit_subscriber_id Email and CRM attribution ConvertKit
ct_adid Campaign and ad metadata Mixed marketing and attribution tooling
ct_click_id Ad click identifier Cointraffic
ct_params Campaign and ad metadata Mixed marketing and attribution tooling
cto_pld Ad click identifier Criteo
customid Ad click identifier Affiliate and network sub-tracking
cvid Campaign and ad metadata Mixed marketing and attribution tooling
czclickid Ad click identifier CyberTargeter
dclid Ad click identifier Google Display and Campaign Manager
deep_link_sub1 Campaign and ad metadata AppsFlyer deep link metadata
deep_link_sub2 Campaign and ad metadata AppsFlyer deep link metadata
deep_link_sub3 Campaign and ad metadata AppsFlyer deep link metadata
deep_link_sub4 Campaign and ad metadata AppsFlyer deep link metadata
deep_link_sub5 Campaign and ad metadata AppsFlyer deep link metadata
dicbo Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
drip_email_id Email and CRM attribution Drip
drip_subscriber_id Email and CRM attribution Drip
ef_id Ad click identifier Mixed marketing and attribution tooling
eid Campaign and ad metadata Mixed marketing and attribution tooling
elq_cid Email and CRM attribution Oracle Eloqua
elq_mid Email and CRM attribution Oracle Eloqua
elqCampaignId Email and CRM attribution Oracle Eloqua
elqTrack Email and CRM attribution Oracle Eloqua
elqTrackId Email and CRM attribution Oracle Eloqua
epik Ad click identifier Pinterest Ads
et_rid Email and CRM attribution Mixed marketing and attribution tooling
fb_action_ids Campaign and ad metadata Mixed marketing and attribution tooling
fb_action_types Campaign and ad metadata Mixed marketing and attribution tooling
fb_ref Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
fb_source Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
fbc Cookie-derived attribution Meta browser cookie
fbclid Ad click identifier Meta Ads
fbp Cookie-derived attribution Meta browser cookie
ga_adcid Campaign and ad metadata Mixed marketing and attribution tooling
ga_adgid Campaign and ad metadata Mixed marketing and attribution tooling
ga_adid Campaign and ad metadata Mixed marketing and attribution tooling
gbraid Ad click identifier Google Ads iOS and Safari traffic
gci Campaign and ad metadata Mixed marketing and attribution tooling
gclid Ad click identifier Google Ads
gclsrc Ad click identifier Google Ads click source
guce_referrer Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
guce_referrer_sig Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
h_sid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
h_slt Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
hsCtaTracking Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
ICID Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
igsh Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
igshid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
invite_id Email and CRM attribution Referral and invite links
inviter_id Email and CRM attribution Referral and invite links
irclickid Ad click identifier Impact Radius
iterableEmailCampaignId Email and CRM attribution Iterable
iterableEmailId Email and CRM attribution Iterable
iterableEndUserId Email and CRM attribution Iterable
iterableMessageId Email and CRM attribution Iterable
iterableTemplateId Email and CRM attribution Iterable
li_adid Campaign and ad metadata LinkedIn campaign metadata
li_fat_id Ad click identifier LinkedIn Ads
mc_cid Email and CRM attribution Mailchimp
mc_eid Email and CRM attribution Mailchimp
mkt_tok Email and CRM attribution Marketo
ml_recipient Email and CRM attribution Mixed marketing and attribution tooling
ml_subscriber Email and CRM attribution MailerLite
ml_subscriber_hash Email and CRM attribution MailerLite
mpid Campaign and ad metadata Impact Radius or partner tracking
msclkid Ad click identifier Microsoft Ads
mtm_cid Analytics, referral, or deep-link metadata Matomo Tag Manager
ndclid Ad click identifier Nextdoor Ads
ob_click_id Ad click identifier Outbrain
oft_c Email and CRM attribution Mixed marketing and attribution tooling
oft_campaign Email and CRM attribution Mixed marketing and attribution tooling
oft_ck Email and CRM attribution Mixed marketing and attribution tooling
oft_d Email and CRM attribution Mixed marketing and attribution tooling
oft_id Email and CRM attribution Mixed marketing and attribution tooling
oft_ids Email and CRM attribution Mixed marketing and attribution tooling
oft_k Email and CRM attribution Mixed marketing and attribution tooling
oft_lk Email and CRM attribution Mixed marketing and attribution tooling
oft_sk Email and CRM attribution Mixed marketing and attribution tooling
oicd Email and CRM attribution Mixed marketing and attribution tooling
oly_anon_id Email and CRM attribution Mixed marketing and attribution tooling
oly_enc_id Email and CRM attribution Mixed marketing and attribution tooling
omnisendAttributionID Email and CRM attribution Omnisend
omnisendContactID Email and CRM attribution Omnisend
otc Email and CRM attribution Mixed marketing and attribution tooling
outbrain_click_id Ad click identifier Outbrain
partner_id Analytics, referral, or deep-link metadata Partner links
partnerid Analytics, referral, or deep-link metadata Partner links
pi_ad_id Email and CRM attribution Salesforce Account Engagement
pi_campaign_id Email and CRM attribution Salesforce Account Engagement
pid Campaign and ad metadata AppsFlyer
pk_cid Analytics, referral, or deep-link metadata Matomo
pub_ref Analytics, referral, or deep-link metadata Affiliate and publisher links
pubref Analytics, referral, or deep-link metadata Affiliate and publisher links
qclid Ad click identifier Quora Ads
ranEAID Ad click identifier Rakuten Advertising
ranMID Ad click identifier Rakuten Advertising
ranSiteID Ad click identifier Rakuten Advertising
rb_clickid Ad click identifier Redbrain
rdt_cid Ad click identifier Reddit Ads
ref Analytics, referral, or deep-link metadata Referral and affiliate links
ref_id Analytics, referral, or deep-link metadata Referral and affiliate links
ref_src Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
ref_url Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
referral_id Analytics, referral, or deep-link metadata Referral and affiliate links
refid Analytics, referral, or deep-link metadata Referral and affiliate links
s_cid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
s_kwcid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
s1 Analytics, referral, or deep-link metadata Affiliate sub-tracking
s2 Analytics, referral, or deep-link metadata Affiliate sub-tracking
s3 Analytics, referral, or deep-link metadata Affiliate sub-tracking
s4 Analytics, referral, or deep-link metadata Affiliate sub-tracking
s5 Analytics, referral, or deep-link metadata Affiliate sub-tracking
sc_click_id Ad click identifier Mixed marketing and attribution tooling
sc_customer Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
sc_eh Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
sc_uid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
ScCid Ad click identifier Snapchat Ads
scid Ad click identifier Mixed marketing and attribution tooling
sendgrid_message_id Email and CRM attribution SendGrid
sfmc_activityid Email and CRM attribution Salesforce Marketing Cloud
sfmc_id Email and CRM attribution Salesforce Marketing Cloud
sfmc_journey_id Email and CRM attribution Salesforce Marketing Cloud
sfmc_journey_name Email and CRM attribution Salesforce Marketing Cloud
sfmc_mid Email and CRM attribution Salesforce Marketing Cloud
sfmc_sub Email and CRM attribution Salesforce Marketing Cloud
sfmc_subscriber_id Email and CRM attribution Salesforce Marketing Cloud
sg_email_id Email and CRM attribution SendGrid
ShareASale Analytics, referral, or deep-link metadata ShareASale
si Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
sid Broad attribution parameter Affiliate and partner links
siteid Campaign and ad metadata Publisher and site tracking
soc_src Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
soc_trk Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
source_id Analytics, referral, or deep-link metadata Affiliate and partner links
srsltid Ad click identifier Google surfaces and ad redirects
ss_email_id Email and CRM attribution Mixed marketing and attribution tooling
sscid Ad click identifier Mixed marketing and attribution tooling
sub_id Analytics, referral, or deep-link metadata Affiliate sub-tracking
sub1 Analytics, referral, or deep-link metadata Affiliate sub-tracking
sub2 Analytics, referral, or deep-link metadata Affiliate sub-tracking
sub3 Analytics, referral, or deep-link metadata Affiliate sub-tracking
sub4 Analytics, referral, or deep-link metadata Affiliate sub-tracking
sub5 Analytics, referral, or deep-link metadata Affiliate sub-tracking
subafid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
subid Analytics, referral, or deep-link metadata Affiliate sub-tracking
subid1 Analytics, referral, or deep-link metadata Affiliate sub-tracking
subid2 Analytics, referral, or deep-link metadata Affiliate sub-tracking
subid3 Analytics, referral, or deep-link metadata Affiliate sub-tracking
subid4 Analytics, referral, or deep-link metadata Affiliate sub-tracking
subid5 Analytics, referral, or deep-link metadata Affiliate sub-tracking
tblci Ad click identifier Taboola
tduid Ad click identifier Mixed marketing and attribution tooling
tid Ad click identifier Affiliate and partner links
ttclid Ad click identifier TikTok Ads
twclid Ad click identifier X Ads
u1 Analytics, referral, or deep-link metadata Rakuten and affiliate sub-tracking
u2 Analytics, referral, or deep-link metadata Rakuten and affiliate sub-tracking
u3 Analytics, referral, or deep-link metadata Rakuten and affiliate sub-tracking
unicorn_click_id Ad click identifier Mixed marketing and attribution tooling
utm_id Campaign and ad metadata Cross-platform campaign metadata
utm_source_platform Campaign and ad metadata Cross-platform campaign metadata
vero_conv Email and CRM attribution Mixed marketing and attribution tooling
vero_id Email and CRM attribution Vero
vgo_ee Email and CRM attribution Mixed marketing and attribution tooling
vmcid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
wbraid Ad click identifier Google Ads app and iOS traffic
wickedid Analytics, referral, or deep-link metadata Mixed marketing and attribution tooling
WT.mc_id Analytics, referral, or deep-link metadata Adobe and WebTrends style campaign tracking
yclid Ad click identifier Yahoo Ads
ymclid Ad click identifier Yandex
ysclid Ad click identifier Yandex