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Blocking Websites With DeepCycle & Strict Mode

Block distracting websites during focus sessions with DeepCycle: build a domain block list, set schedules, and lock it with strict mode.

Updated July 21, 2026 3 min readbeginner
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DeepCycle blocks distracting websites by domain while Deep Focus Mode is running: the tab simply does not open, so there is nothing to resist mid-session. Strict mode adds a password in front of the off switch, converting a decision made while you were focused into one your distracted self cannot casually overturn.

Before you begin

  • DeepCycle installed with a working cycle — see the DeepCycle setup guide
  • An honest list of the sites that actually end your sessions

Setting up blocking

Build your block list

Add the domains that reliably cost you the hour. Precision beats breadth: because you block by domain, documentation and research stay reachable while the three sites you already know the names of do not.

Set a blocking schedule

Apply the list on the days and hours you want protected instead of always-on. Working hours blocked, evenings open means the same domains are reachable after work without you remembering to re-enable anything.

Run a session with normal blocking first

Start a cycle and let Deep Focus Mode enforce the list. In this mode you can still switch blocking off whenever you like — useful while you are tuning what belongs on the list.

Enable strict mode when the list is right

Turn on strict mode and set its password. From now on, lifting a block mid-session requires typing that password — enough friction to outlast the ninety-second impulse that kills most sessions.

Why the password matters

Ordinary blockers fail at one specific moment: the one where you disable them. The block was never the hard part — keeping the block from being lifted on impulse was. Strict mode is designed around that moment. The impulse to check a feed is short-lived; a password prompt is exactly enough delay for it to pass.

A practical variant used by people who want the lock to genuinely hold: have someone else set the password, or store it somewhere deliberately inconvenient. The point is not secrecy — it is latency.

Blocking versus budgeting

DeepCycle's blocking is binary by design: during a focus session, the site is unreachable. If what you want instead is a daily allowance — the site works, but only for N minutes a day — that is a different tool for a different failure mode, and Degird makes that too: Limiter gives each time-sink site a daily minute budget with a countdown overlay. Many people run both: Limiter's budgets all day, DeepCycle's hard blocks during deep work hours.

Do not block sites you legitimately need for work, even occasionally. A block list that fights your actual job is the list you will disable — and blockers that get disabled stay disabled.

Next steps

DeepCycle

Pomodoro cycles paired with site blocking and gamified tracking, so deep work survives contact with the open internet.