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Destinations · measurement baseline

# Metric availability

Nine fields across nine documented destinations create 81 modeled classifications. They do not guarantee current non-null measurement coverage.

Eighty-one cells

## Availability matrix

Each cell is an exact modeled state. Field values remain separate from their availability classification.

Scroll horizontally to compare destinations; the metric name stays pinned.

| Metric | TikTok | Instagram Reels | YouTube Shorts | LinkedIn | Facebook Reels | X | Snapchat | Threads | Bluesky |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| views Views | available | available | available | unverified | available | available | unverified | unverified | unverified |
| likes Likes | available | available | available | unverified | available | available | unverified | unverified | unverified |
| comments Comments | available | available | available | unverified | available | available | unverified | unverified | unverified |
| shares Shares | available | available | available | unverified | available | available | unverified | unverified | unverified |
| saves Saves | unverified | unverified | never | unverified | unverified | unverified | unverified | unverified | unverified |
| watch_time_s Watch time | never | available | available | unverified | unverified | unverified | unverified | unverified | unverified |
| avg_watch_pct Average watch | never | estimable | delayed(2-3d) | unverified | unverified | unverified | unverified | unverified | unverified |
| completion_pct Completion | never | estimable | delayed(2-3d) | unverified | unverified | unverified | unverified | unverified | unverified |
| follower_delta Follower delta | estimable | estimable | estimable | unverified | estimable | estimable | unverified | unverified | unverified |

Five exact values

## State rules

`available`

The modeled baseline says the platform exposes this field.

`delayed(2-3d)`

The field is expected after a two-to-three-day evidence delay.

`estimable`

Suitable evidence could support a derived value.

`never`

The platform does not expose this field.

`unverified`

No observed Postdom response has verified this field.

Baseline and observation

## Verification boundary

### Classification, not coverage

The original baseline was recorded on 21 August 2026. Operational setup was checked on 22 August 2026; no fresh per-platform analytics were available. Later rows retain their own evidence dates or remain explicitly unverified.

LinkedIn, Bluesky, Snapchat, and Threads remain unverified across all nine normalized fields. TikTok and Instagram saves remain unverified; YouTube saves is never and its retention fields are delayed. For the difference between null and zero, [read the completion-rate glossary](https://postdom.com/glossary/completion-rate) .

Value preservation

## Agent behavior

 MEASURED VALUE  **0**

### Preserve zero

Zero is numeric evidence and remains zero.

 NO VALUE  **null**

### Preserve null

Never and unverified include reasons. Other nulls may not.

Where classified as estimable, `follower_delta` is still normalized to null. Destinations classified as unverified remain unverified. Do not invent a derived value.

 VERIFIED · 26 AUGUST 2026  **Availability schema · Modeled baseline · Redacted operational check**

Private account, publish, and provider identifiers are excluded.