TikTokStep 1 of 5 on the chain
ttclid
Also called TikTok Click ID.
TikTok's click identifier, carried on the landing page URL from a TikTok ad and used to attribute a later server-side event back to the click.
Why it matters
TikTok lead-gen is newer in most accounts, which means capture is usually newer and thinner. A tracking setup built years ago for Google will not be reading this.
What goes wrong
Because it tends to be added last, it is often the identifier missing from the oldest and most valuable forms on a site. Worth auditing separately rather than assuming the Google fix covered it.
Next to this
- GCLIDGoogle AdsThe identifier Google appends to your landing page URL when someone arrives from an ad and auto-tagging is on.
- fbclidMetaMeta's click identifier, appended to the landing page URL when someone arrives from a Facebook or Instagram ad.
- TikTok Events APITikTokTikTok's server-to-server route for reporting events, including outcomes that happen in a CRM long after the click.
The rest of this step
Measure this on your own data
The diagnostic reads a CRM export in your browser and reports your volume, your match rate and the spread between your leads against the thresholds in this glossary. Nothing is uploaded and no account is needed.