Everything else in this cluster costs money or effort. This one costs neither, and in most businesses it is worth more than another round of campaign optimisation. Speed to lead, meaning how fast somebody actually calls back, decides how many of your enquiries turn into conversations at all.
The research on it is old, unglamorous and still true. The average business takes nearly two days, and almost a quarter never reply.
This is for you if you are buying enquiries and wondering why so few of them go anywhere.
What the research actually says
The best-documented study remains an audit of 2,241 US companies by Oldroyd, McElheran and Elkington, published in Harvard Business Review in March 2011.
The findings are stark. Among companies that responded at all, the average first response took 42 hours. Thirty-seven percent replied within an hour. Twenty-four percent took more than a day. And 23% never responded at all.
Firms making contact within the hour were roughly seven times more likely to qualify the lead than those who took longer.
Two notes on using this. It is not “an MIT study” or “a Harvard study”, it is research by those three authors published in HBR, and getting that right matters when you quote it. And the widely circulated “47 hours” figure is a corruption of the real 42, which tells you how carelessly this gets repeated.
Why speed to lead beats most optimisation work
Look at what a delay actually destroys.
You paid to reach somebody at the exact moment they were thinking about the problem. That is the entire value of the click. An hour later they have moved on to something else. A day later they have enquired with two competitors and possibly already had a conversation with one.
So a slow response does not just lower your close rate. It converts a lead you paid full price for into a lead somebody else will close.
Set that against the effort of improving cost per lead by ten percent through creative testing and bidding work. The speed fix is usually larger, faster and free.
Measure speed to lead to the first human contact
This is where most measurement goes wrong, and it goes wrong flatteringly.
An autoresponder firing in four seconds is not a response. It confirms receipt. It answers no question, starts no conversation, and does nothing to keep the person’s attention.
Measure from the enquiry timestamp to the first genuine human contact, whether that is a phone call answered or a personally written reply.
Use the median rather than the average. One enquiry forgotten over a bank holiday weekend will wreck an average while telling you nothing about your normal performance. The median tells you what usually happens, which is what you can actually manage.
Why most businesses have poor speed to lead
Rarely because anyone decided to be. Four structural reasons cover almost every case.
Enquiries land in a shared inbox that nobody owns, so everyone assumes somebody else has it.
The notification goes to email, which is checked in batches, rather than to a phone, which interrupts.
Nobody is assigned to a time block, so enquiries arriving at 4pm on Friday sit until Monday, which is when a large share of paid traffic converts.
And speed is not measured, so it is not managed. Nothing in the ad dashboard shows it, and nothing in the CRM surfaces it unless someone builds the report.
Fixing speed to lead without hiring anybody
Four changes, none of which need extra headcount.
Route notifications to a phone rather than an inbox. A push notification interrupts. An email joins a queue.
Assign an owner per time block, by name, including evenings and weekends if you advertise then. Ambiguity is the single biggest cause of delay.
Give whoever responds a short opening script, so the first contact is quick rather than perfectly composed. A fast good-enough call beats a slow polished one.
And build the report. Enquiry time, first contact time, median by week. Once it is visible, it improves on its own, because people manage what they can see.
The trade nobody mentions
Improving speed to lead usually makes your cost per lead look worse, and it is worth understanding why before somebody panics.
Faster follow-up means more of your enquiries become qualified conversations. Once qualification data flows back to your ad platforms, they optimise towards those people, who cost more to reach.
So the headline figure rises while the business improves. That is the same trade as sending closed-won data back to the platform, and it is the right one.
If you only ever watch cost per lead, this work looks like a regression. Judge it on conversations and customers instead.
Where speed to lead matters most
Not every business gains equally, and it helps to know where you sit.
Urgency businesses gain most. Emergency trades, anything with a broken thing at one end of it, medical and legal matters with a deadline. The person is contacting several suppliers in one sitting and the first useful reply usually wins.
Comparison purchases gain almost as much. Nobody enquires with one supplier for a kitchen or an insurance policy. Being first means you set the reference point everyone else gets measured against, which is worth more than any discount.
Long B2B cycles gain in a quieter way. The deal takes months, but the decision about who to take seriously takes hours, and a slow first response quietly removes you from that shortlist.
The only businesses that gain little are those where you are genuinely the only option. If that is you, speed to lead is a courtesy rather than a lever, and there are better places to spend the effort.
What to change this week
Four steps, and the first takes ten minutes.
Pull your last 50 enquiries and record the gap between arrival and first human contact. Take the median. That number is your baseline and it is usually worse than anybody in the business believes.
Move notifications from a shared inbox to a phone.
Assign an owner by name for each block of the working week, plus a rule for out of hours.
Then track the median weekly and put it next to your cost per lead in the same report, so the two are finally discussed together.
The wider piece on judging lead cost covers where this fits, lead quality covers what you are actually trying to protect, working out what a lead is worth explains why a wasted enquiry costs more than it looks, and lead form spam covers the junk that slows your team down before they even reach the real ones. If you want your whole lead process looked at rather than just the ads, get in touch.