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Diagnosing typical issues

Checklists based on code facts: why a pixel does not fire, where the QR went, and what a consent cookie means.

8–10 min Updated: July 2026
DNSдомен
pixelsусловия
consent{id}cookie

Key takeaways

  • Pixels without a custom domain and without Smart Traffic will not run as expected (plain redirect + warning in the log).
  • Deleting a link breaks the linked QR — recovery is impossible.
  • Pixel consent cookie: consent{link_id}.
  • Selena settings take a cooldown of about 4 hours into account — do not expect an instant recalculation.

Domain and DNS

A custom domain must point to ClikBy infrastructure (A/CNAME per the instruction in the domains section). Until DNS has converged, a short link on your domain will not open reliably.

  • Check the records against the hint in the account (Helpers/domain).
  • Wait for DNS propagation (minutes–hours).
  • Check that the link was created with the needed domain_id, not only on the default domain.

Detailed guide: «Domains» section.

Pixels do not fire

In RedirectController: if the link has pixels but no domain_id and no smart_traffic — pixels are not used in the normal scenario; a warning is written to the clikby log channel, and a regular redirect runs.

  1. Bind a custom domain to the link or turn on «Smart filtering» (Smart Traffic).
  2. Make sure pixels are actually bound to the link.
  3. If pixel_notification is on — the user must accept consent (cookie consent{link_id} = 1), otherwise pixel scripts will not go out.
  4. With Smart Traffic, firing may be deferred to the client SDK (delay, about 5 s by default) — check Network after the delay.

TikTok in the current redirect blade writes a cookie with the ID, but not a full PageView SDK — do not expect a TikTok event like Facebook's while the implementation is incomplete. See the pixel comparison.

QR after deleting the link

The QR is bound to a live short link. You deleted the link — the code leads nowhere / to an error. A deleted link cannot be restored; create a new one and regenerate the QR.

Before bulk deletion, export the needed URLs and QR.

Bots and visit status

Bot detection may record a visit with status bot and divert traffic without full tracking/pixels (depending on the safe / soft_pass mode with Smart Traffic).

  • In Stats, look at statuses bot / pending / confirmed.
  • Soft-bots with smart_traffic on may pass differently than a hard block.
  • Do not compare «raw» ad-account clicks 1:1 with confirmed without accounting for filtering.

AI Selena / cooldown

Changes in AI Selena traffic-analysis settings may take a cooldown of about 4 hours into account. If you just saved rules and «nothing changed» — wait for the apply window and check that the needed analysis mode is on for the link.

Quick checklist

  1. Does the link open from the needed domain?
  2. For pixels: domain_id or smart_traffic?
  3. Has pixel_notification consent been passed (consent{id}=1)?
  4. Is the click not a bot? Status in visits?
  5. Has the link not expired (ends_at / expiration_clicks)?
  6. Has the alias the QR points to not been deleted?

What’s next?

Didn't find the cause?

Check the checklist and the articles on domains/pixels — or write to support with the link alias and the click time.