Density levels screener: how to trade support and resistance

Written by JustScreener Research Team Last updated August 13, 2026

A level is a price the market has already come back to: swings turned there, candle wicks piled up there, turnover went through there. The JustScreener density levels screener finds those places on its own, from the candles of the timeframes you pick, and sends a push or Telegram notification when price approaches a level or breaks it. You never type a price: you set the timeframes and the minimum level weight.

How the density levels screener works

The set of levels is recomputed from the candles of four timeframes — 15m, 1h, 4h and 1d — while approaches and breaks are checked against price every minute. One message carries up to 5 levels for a coin, strongest first:

Coin ticker and the venue whose candles produced the level
Level price, its weight, and the touch count
The level’s timeframe, plus a “confirmed on…” line when the same level shows up on other timeframes
The event: approach, break upward, or break downward
Current price, the 24-hour range, and direct links to the exchange and TradingView

This is a fundamentally different job from the price alert screener: there you name the coin and the number yourself, and there is nothing to search for. Here the engine picks the coins — which is why the liquidity filters and the signal limit matter.

What the level weight means

Weight is relative: 100 means the strongest level on this chart on this timeframe, not a market-wide score. That is why one threshold behaves the same on BTC and on a coin with a few million in turnover.

What weight is built from

The number of touch events and the quality of the rebounds.
Recent breaks — they push weight down: the level is damaged but still alive.
A match with the previous day’s, week’s or month’s high or low.
The turnover that went through the zone, and the level working both ways — as support and as resistance.

Weight 30 to 50: reconnaissance

Roughly 5–6 levels per coin — expect a lot of messages.
Workable for 15m scalping, but only with a high turnover floor.
Across a wide coin list and without a signal limit it turns into a stream.

Weight 60 to 70: the working balance

Roughly 2–3 levels per coin — 60 is the default.
A sensible starting point for 1h and 4h.
Move the threshold on evidence: too many messages, add 10; silence, drop 10.

Weight 75 to 95: the top only

75–85 — the top 1–2 levels on the chart.
90–95 — effectively the single strongest level.
A swing setting for 4h and 1d: few hits, and each one is worth opening the chart for.

Who benefits from the density levels screener

Swing traders — take 4h and 1d with weight 70+ and the approach mode: time enough to place the order before price reaches the level.
Intraday traders — run 1h with both modes and a cap of 3 signals per 4 hours: the approach first, then the break of the same level.
Breakout traders — keep the break mode only and raise weight to 75: the stronger the level, the more the exit beyond it means.
Scalpers — enable 15m together with a $20M turnover floor, otherwise the level is just somebody’s single order.

Levels get drawn by hand, one chart at a time — which is why most traders watch five coins instead of the whole market. The density levels screener does the same job across every pair and calls you when price actually reaches the level, not an hour later.

Important: a level comes from candles, not from the order book, and it marks a place price has already returned to — not a guaranteed bounce. Weight scores the level’s observable properties; it is not a probability. The engine does not see trend lines or volume profile, and its search depth is bounded by the window: about three days on 15m, about forty days on 4h.

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