ID5 alternatives
6 alternatives to ID5 in Best Identity Resolution & First-Party ID Solutions for Publishers, independently scored — 1 for small publishers, 4 mid-market, 5 enterprise.
ID5 scores 3.8/5 in this benchmark. Last verified Nov 12, 2026 · No vendor payments.
| Compare | Tool | Score | Best for | |||
|---|---|---|---|---|---|---|
| Strong Choice 2 | ||||||
E Ezoic Publisher monetisation platform with ezID first-party identity | 4.0 | Small, Mid-market | ||||
LiveRamp RampID Industry-standard authenticated identity graph | 3.8 | Enterprise | ||||
| Fair Fit 3 | ||||||
Audigent First-party data and identity activation | 3.4 | Enterprise | ||||
Optable Customer-owned identity graph with no proprietary ID | 3.4 | Mid-market, Enterprise | ||||
Unified ID 2.0 The Trade Desk's open email-based identifier | 3.4 | Mid-market, Enterprise | ||||
| Limited 1 | ||||||
TT The Trade Desk Independent DSP powering UID2.0 and cross-channel identity graph | 3.2 | Mid-market, Enterprise | ||||
| Compare | Tool | Score | Best for | |||
|---|---|---|---|---|---|---|
| Strong Choice 1 | ||||||
Ezoic Publisher monetisation platform with ezID first-party identity | 4.0 | Small, Mid-market | ||||
| Compare | Tool | Score | Best for | |||
|---|---|---|---|---|---|---|
| Strong Choice 1 | ||||||
Ezoic Publisher monetisation platform with ezID first-party identity | 4.0 | Small, Mid-market | ||||
| Fair Fit 2 | ||||||
Optable Customer-owned identity graph with no proprietary ID | 3.4 | Mid-market, Enterprise | ||||
Unified ID 2.0 The Trade Desk's open email-based identifier | 3.4 | Mid-market, Enterprise | ||||
| Limited 1 | ||||||
The Trade Desk Independent DSP powering UID2.0 and cross-channel identity graph | 3.2 | Mid-market, Enterprise | ||||
| Compare | Tool | Score | Best for | |||
|---|---|---|---|---|---|---|
| Strong Choice 1 | ||||||
LiveRamp RampID Industry-standard authenticated identity graph | 3.8 | Enterprise | ||||
| Fair Fit 3 | ||||||
Audigent First-party data and identity activation | 3.4 | Enterprise | ||||
Optable Customer-owned identity graph with no proprietary ID | 3.4 | Mid-market, Enterprise | ||||
Unified ID 2.0 The Trade Desk's open email-based identifier | 3.4 | Mid-market, Enterprise | ||||
| Limited 1 | ||||||
The Trade Desk Independent DSP powering UID2.0 and cross-channel identity graph | 3.2 | Mid-market, Enterprise | ||||
Before you switch — what ID5 does well
Strengths
- Free to use after a simple registration
- Native Prebid module with clear documentation
- Built-in A/B testing to measure revenue impact
And where it was marked down
- Focused on identity, not publisher segmentation
- No public match-rate figures
- Value depends on demand partners reading the ID
Common questions
What is the best alternative to ID5?
There is no single best one. The 6 tools below are grouped by editorial tier and listed A to Z inside each tier. 1 score above ID5's 3.8/5 and 5 below it. Which suits you depends on your publication's size, revenue model and vertical.
Why would a publisher move away from ID5?
Our editors flagged: Focused on identity, not publisher segmentation; No public match-rate figures; Value depends on demand partners reading the ID. Whether those matter depends on your setup — many publishers run ID5 successfully despite them.
Are these alternatives ranked by paid placement?
No. Every tool here is grouped by editorial tier and listed A to Z within each tier — there is no position to buy. Scores are set by SODP's editorial team against each category's published criteria, and vendors cannot pay for inclusion, for a score, or for a position on this page.
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Four questions, and a scored stack across every benchmark — not just Best Identity Resolution & First-Party ID Solutions for Publishers
Every scored tool in Best Identity Resolution & First-Party ID Solutions for Publishers, with the criteria behind each number
The full assessment, strengths and cost of ownership
