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llms.txt GeneratorDoes a citation win mean you have a durable position?
Usually no. A one-time citation win is often ephemeral because 73.5% of citations appear once and vanish, and only 6.8% are still active at the end of the observation window.
The key numbers.
- One-and-done citations
- Citations that appear once and vanish.
- 73.5%
- Still active citations
- Small share of URLs still active at the end of the window.
- 6.8%
- Brand half-life
- Average time for brand presence to halve from peak.
- 31 days
Durable position requires sustained reappearance and continuous optimization, as isolated wins decay rapidly.
The evidence.
| Measure | Result |
|---|---|
| One-and-done citations Citations that appear once and vanish. | 73.5% |
| Still active citations Small share of URLs still active at the end of the window. | 6.8% |
| Brand half-life Average time for brand presence to halve from peak. | 31 days |
Population and method
Built from 857,138 reports, 108,650 citations, 10,991 brands, and 8 tracked models across a 10-month observation window.
Where the evidence stops
Decay describes observed persistence, not the full causal mechanism behind why a citation disappears.
Brand- and domain-level averages can hide very different retention patterns by query class or model.
Some of the stickiest or most volatile domains come from niche query pockets and should be read as examples, not universal leaders.
What to do with this
- Measure visibility as a moving system rather than a one-time citation snapshot.
- Refresh and monitor citation-driving pages on the cadence your models actually decay.
- Separate durable wins from temporary spikes to prevent overreacting to short-lived mentions.
Operators must shift from celebrating single mentions to tracking sustained visibility, adjusting content refresh cycles to match the 31 days brand half-life rather than arbitrary calendar dates.
Questions about this answer.
Cite this answer.
Source study: Citation Decay“Usually no. A one-time citation win is often ephemeral because 73.5% of citations appear once and vanish, and only 6.8% are still active at the end of the observation window.”
Mack Grenfell · Does a citation win mean you have a durable position?
The Half-Life of AI Citations · Trakkr Research · Updated 30 March 2026