Why not just count likes — "5 likes and it's verified"?

Because a bonus sitting on 5 likes and 10 dislikes would then qualify. The Wilson Score weighs the ratio of positive to negative votes, not the raw like count in isolation. A wave of dislikes carries just as much weight as the likes.

Why not use a straight percentage?

One single like gives a 100% rate, which would rank that bonus above one with 800 likes from 1,000 votes (80%). Wilson Score stops that happening by accounting for the sample size sitting behind the percentage. More votes means a more credible result.

Can a casino pay to lift its bonus score?

No. Scores are computed purely from player votes through a fixed formula. There's no editorial override and no fee that buys a better position. The thresholds and constants in the formula are public and apply identically across every casino on the site.

How often do scores refresh?

On every new vote, plus a background update every 15–30 minutes. The score you see reflects current data.

Why might a bonus I used before now show POOR?

Casinos do revise bonus terms — wagering requirements, permitted games, cashout limits. As players who encountered the revised terms cast their votes, the score shifts accordingly. A drop in score is frequently the first visible indicator that a bonus has quietly deteriorated.

What's the difference between VERIFIED and GAINING POPULARITY?

Both are positive indicators. VERIFIED requires at least 30 votes and a Wilson Score above 0.50 — a meaningful, statistically grounded sample. GAINING POPULARITY means fewer votes (minimum 3) but a solid Wilson Score (above 0.55), suggesting strong early approval. With more votes and continued positive feedback, a GAINING POPULARITY bonus will typically move up to VERIFIED.

Does this cover all bonus types?

Yes — welcome bonuses, no-deposit offers, free spins, reload bonuses, and every other type all run through the identical Wilson Score formula with the same label thresholds. The bonus category makes no difference to how it's scored.

How We Calculate Bonus Score

Every bonus you find on CasinosAnalyzer carries a score and a status — and neither is decided by an editorial team. Both are generated automatically from real player votes, run through a statistically sound formula. This page explains the method behind that process: how scores are worked out, what each label tells you, and why the score on a bonus you looked at last week might have shifted since then.

Why We Let Players Do the Talking

Fine print is fine print — it rarely tells you how a bonus actually plays out. A generous-looking welcome offer can quickly become a frustrating experience once you're chasing wagering requirements, hitting game exclusions, or waiting on a withdrawal. The people who genuinely know whether a bonus is worth claiming are the ones who've already claimed it.

That's why every bonus listed on CasinosAnalyzer is open to community votes. Once a player has tried a bonus, they can record it as Worked 👍 — reasonable conditions, achievable requirements, withdrawal processed without drama — or Not Working 👎 — buried restrictions, unrealistic wagering, or problems getting paid. Those votes feed straight into a calculated score that determines where a bonus sits in our rankings.

No sponsored positions. No editorial calls. Just real feedback from Australian players.

The Trouble with Simple Percentages

Before getting into what we do, it helps to understand why a straight percentage isn`t a reliable way to rank bonuses — especially ones that haven`t accumulated many votes yet.

⚠️ Here`s the issue: Bonus A has 5 votes, all positive — a perfect 100%. Bonus B has 600 votes, 500 of them positive — 83%. Rank by percentage alone and Bonus A lands on top. But is that fair dinkum? With just 5 votes, two bad experiences next week could send it tumbling to 60%. Bonus B`s 83% is grounded in 600 genuine player reports and is considerably more reliable.

SAME APPROVAL RATE — VERY DIFFERENT RELIABILITY

A raw percentage treats 5 votes and 600 votes as if they carry the same authority. They don`t, and our system is designed to account for that.

The Wilson Score: How We Do It

We score bonuses using the Wilson Score Lower Bound — the same statistical method that powers Reddit`s post rankings, Amazon`s review ordering, and YouTube`s content quality signals. It calculates the lower boundary of a confidence interval for the true approval rate, factoring in both the proportion of positive votes and the total number of votes behind that proportion.

What this means in practice: the Wilson Score gives a conservative answer to the question, "Based on current votes, what's the most cautious reasonable estimate of how good this bonus actually is?" Bonuses with few votes are held back by statistical uncertainty. Bonuses with a large, consistently positive track record earn a correspondingly strong score.

✅ What makes Wilson Score reliable: It never goes below 0% or above 100%. It handles edge cases — such as a bonus with no dislikes at all — sensibly. And it settles over time: as more votes come in, scores converge steadily rather than swinging unpredictably.

The Formula

The Wilson Score Lower Bound at 95% confidence is:

💡 The maths aren't compulsory reading. The short version: a higher Wilson Score means the bonus is both well-liked by players and backed by enough votes to make that verdict stand up.

Quality Labels Explained

Every bonus is assigned one of five labels based on its Wilson Score and total number of votes. Earning a positive label means meeting minimum thresholds on both at the same time.

Bonus Score Label	Number of Reactions	Min. Wilson Score	Description
✅ VERIFIED	≥ 30	≥ 0.50	Verified, quality bonus
✅ GAINING POPULARITY	Between 3 and 29	≥ 0.55	Strong early signal, still building data
⚡ GATHERING DATA	< 3	—	New bonus, data still being collected
⚡ UNCERTAIN	≥ 30	Between 0.3 and 0.49	Mixed reactions, not enough clarity to verify
⚠️ LOW QUALITY	≥ 30	< 0.30	Low-quality bonus

What Appears on Bonus Cards

Every bonus listing on CasinosAnalyzer includes a performance block — a plain-language snapshot of what the community has experienced.

Bonuses still collecting their earliest votes show no performance block at all. Without enough data to form a view, there's nothing useful to display. Once votes are coming in but the picture remains unclear, the block reads Mixed performance and shows whichever outcome — Worked 👍 or Not working 👎 — most voters reported.

Bonuses that are gaining traction or have reached verified status both display Good performance alongside a Worked 👍 count, reflecting a consistent string of positive player reports. A low quality bonus, on the other hand, shows Poor performance and surfaces the Not working 👎 tally front and centre — a straightforward heads-up that players have repeatedly struck trouble.

Either way, the figures shown — for example, "47 of 55 users say it Worked" — are live vote counts that update each time a new vote is cast.

Why Scores Move Over Time

Each new vote triggers a fresh calculation

The Wilson Score is recalculated whenever a player votes. A bonus can move up or down between tiers as its vote tally grows. Scores are also refreshed automatically in the background every 15–30 minutes to keep everything up to date.

Low-vote bonuses start cautiously

A brand-new bonus with three all-positive votes opens as GAINING POPULARITY, not VERIFIED. If that positive run continues as more votes arrive, it will graduate to VERIFIED. The system is intentionally careful with small samples.

Changed terms show up in the score

If a casino quietly shifts wagering conditions or payout rules on an existing bonus, players voting under those new terms will pull the score in a new direction. A bonus sliding from VERIFIED down to LOW QUALITY is a reliable sign that something has changed since the earlier votes were cast.

Past votes stay on the record

All votes accumulate permanently. A casino cannot wipe a bonus`s history to start fresh — the full voting record always feeds into the score, keeping the system honest.

Frequently Asked Questions

If you have any specific questions, please message us.

Why not just count likes — "5 likes and it's verified"?: Because a bonus sitting on 5 likes and 10 dislikes would then qualify. The Wilson Score weighs the ratio of positive to negative votes, not the raw like count in isolation. A wave of dislikes carries just as much weight as the likes.

Why not use a straight percentage?: One single like gives a 100% rate, which would rank that bonus above one with 800 likes from 1,000 votes (80%). Wilson Score stops that happening by accounting for the sample size sitting behind the percentage. More votes means a more credible result.

Can a casino pay to lift its bonus score?: No. Scores are computed purely from player votes through a fixed formula. There's no editorial override and no fee that buys a better position. The thresholds and constants in the formula are public and apply identically across every casino on the site.

How often do scores refresh?: On every new vote, plus a background update every 15–30 minutes. The score you see reflects current data.

Why might a bonus I used before now show POOR?: Casinos do revise bonus terms — wagering requirements, permitted games, cashout limits. As players who encountered the revised terms cast their votes, the score shifts accordingly. A drop in score is frequently the first visible indicator that a bonus has quietly deteriorated.

What's the difference between VERIFIED and GAINING POPULARITY?: Both are positive indicators. VERIFIED requires at least 30 votes and a Wilson Score above 0.50 — a meaningful, statistically grounded sample. GAINING POPULARITY means fewer votes (minimum 3) but a solid Wilson Score (above 0.55), suggesting strong early approval. With more votes and continued positive feedback, a GAINING POPULARITY bonus will typically move up to VERIFIED.

Does this cover all bonus types?: Yes — welcome bonuses, no-deposit offers, free spins, reload bonuses, and every other type all run through the identical Wilson Score formula with the same label thresholds. The bonus category makes no difference to how it's scored.

A Note on How We Work

Everything described on this page is the live system scoring every bonus on CasinosAnalyzer Australia. We make the methodology public because you should be able to understand where these rankings come from — not just assume they're fair. If a bonus score no longer matches what you experienced, your vote is the most direct way to bring it back into line. Submit it, and the system recalculates automatically.