The "speed-to-lead" rule

Last updated 3 July 2026 | Website Growth Audit editorial team

1 min read

One of the most replicated findings in B2B lead research: responding to a web enquiry within 5 minutes makes you 9× more likely to convert it than responding after 30 minutes (Harvard Business Review, Lead Connect, InsideSales).

Why

When someone fills in a web form, they've usually opened 3–5 other tabs and filled in 2–3 other forms. The first business that calls back wins. By the time the second one calls, the customer has already booked someone.

What this means for trades

Get notifications instantly, push to a phone, not just an email that sits in an inbox.
Have someone who can answer between 8am and 8pm at minimum.
If you can't respond fast, at least send an automated text acknowledging the enquiry and giving an ETA.
Track your response time, most businesses say "we reply fast" without measuring it.

The blunt maths

If you generate 20 leads/month and convert 30%, you get 6 customers. Cut response time to 5 minutes and convert 50%, 10 customers. Same traffic, 65% more revenue. Speed-to-lead is usually a bigger lever than more SEO.

Services that fit this guide

Website audit

Find the form, tracking and follow-up gaps losing leads.

Website design

Make calls, forms and quote requests easier to complete on mobile.

Google Ads

Protect paid lead quality with landing pages and conversion tracking.

Key terms

Useful glossary definitions for this guide.

Frequently asked questions

What does speed to lead mean?

Speed to lead is the time between a prospect submitting an enquiry and your business making a real response by phone, text or email.

How fast should I respond to website leads?

Aim to respond within five minutes where possible, especially for urgent trade and service enquiries where prospects contact several businesses.

What if I cannot call every lead immediately?

Send an instant acknowledgement by text or email, give a clear callback time, and make sure the lead is visible to someone who can respond quickly.

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