Answer
How fast should you respond to an online lead?
The honest answer is a number, not a range, and almost nobody hits it.
Inside five minutes. Under five minutes, inquiries close at about 32%; after twenty-four hours, about 12%. The gap is arrival time, not effort — and only about 7% of teams actually reply inside that window.
The five-minute threshold is not a round number chosen for a slide. It is where the measured close rate stops behaving like a gentle slope and starts behaving like a cliff. A reply that lands inside it reaches someone who is still on your site, still comparing, still holding the problem in their head. A reply that lands the next morning reaches someone who has already spoken to two other firms.
What makes the number useful is how few businesses meet it. When the standard is one most of your competitors are missing, hitting it is not an operational nicety — it is the whole differentiator, and it is available without spending anything on more traffic.
The practical consequence is that response time belongs on a dashboard rather than in a policy document. A commitment nobody measures degrades quietly: it holds for a fortnight, then a busy week arrives and nobody notices it has stopped holding. The businesses that keep hitting the window are the ones that can see when they have missed it.
Speed to lead is not a customer service metric. It is a close-rate metric, and the curve does most of its falling in the first hour.
Siddharth Sharma, Context Theory
Related questions
Does this apply outside business hours?
The measured effect does not care what time it is, but a human answering at 2am is not a realistic commitment for most businesses. The usual honest arrangement is automated acknowledgement inside the window at all hours, with a real reply inside the window during working hours.
Is a fast automated reply better than a slower human one?
For the first touch, generally yes — it holds the conversation open. It stops being true the moment the automated reply pretends to be a person, which is a trust problem that outlasts any speed gain.
METHOD
Every figure below carries its source and the date it was verified. Nothing on this page is asserted.
The numbers on this page.
| What | Value | Specific to |
|---|---|---|
| Close rate — response under 5 minutes vs over 24 hours | 32% vs 12% | This page |
| Teams responding to an inbound lead within 5 minutes | 7% | This page |
| Average B2B first-response time | 42 hrs | Category-wide |
| Customers who buy from the first responder | 78% | Category-wide |
Optifai speed-to-lead benchmark · n=939 companies · Q2 2025–Q1 2026 · verified
2026 speed-to-lead benchmark · range ~5% FinTech to ~15% RevOps · verified
Oldroyd, McElheran & Elkington, "The Short Life of Online Sales Leads", Harvard Business Review (March 2011) · hours · 1.25M inbound leads across 2,241 US firms · verified
Multi-study aggregate · verified
Start with the measurement.
Reading about a benchmark is not the same as knowing your own number. The audit produces yours, measured rather than estimated.
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