Signal-based outreach vs cold outreach: when each one works

The two approaches, side by side

Both are outbound: you write first, to someone who didn't ask. The difference is what picks the person and the moment. In cold outreach you choose people by who they are, such as job title, industry, company size and location, and contact them whenever your sequence reaches them. In signal-based outreach you still filter on who they are, but you wait for a dated event that suggests the timing is right, and you write about that event.

A buying signal isn't the same as being active on LinkedIn. Someone who posts every day and fits your ideal customer has given you no reason to write today. Someone who started as Head of Sales three weeks ago, or commented on a competitor's pricing post yesterday, has. What counts as a LinkedIn buying signal lists the signals and how long each one stays useful.

Why timing matters: two numbers with a source and a date

The first comes from Professor John Dawes of the Ehrenberg-Bass Institute, in a paper LinkedIn published in May 2021. His example: companies change a service provider such as their main bank or law firm about once every five years. That puts about 20% of business buyers in the market over a year, and something like 5% in any quarter, which is where the 95-5 name comes from. Dawes says the 95% isn't a precise rule. He gives a way to work out your own: if buyers in your category purchase every two years on average, about 50% are in the market in a year and about 13% in a quarter.

Read for outbound, that's the case for signals. In a typical quarter most of the people on a cold list aren't buying anything you sell, however good the message. A signal is a cheap way to guess which of them might be.

The second is older and about speed. In the March 2011 Harvard Business Review, James Oldroyd, Kristina McElheran and David Elkington looked at 1.25 million sales leads received by 29 consumer and 13 B2B companies in the US. Firms that tried to contact a lead within an hour of the enquiry were nearly seven times as likely to qualify it, meaning a real conversation with a decision maker, as firms that tried an hour later, and more than 60 times as likely as firms that waited 24 hours or more. In a separate audit of 2,241 US companies, 23% never answered a test web enquiry, and those that answered within 30 days took 42 hours on average.

That study measured people who filled in a web form, not people who liked a LinkedIn post, so don't read the seven times as a figure for signal-based outreach. What carries over is the direction: interest cools quickly. A signal from this week is worth more than the same signal from last month, and a message that arrives three weeks after a job change reads like it came from a list.

Dawes's paper also argues the other side. He writes that buyers mostly rely on memory when they buy and strongly prefer brands they already know, and that targeting only ready buyers, if that's all you do, won't make you one of those brands. For outbound, that's a reason to keep some steady, unhurried contact with good-fit accounts who show no signal yet.

When signals beat cold outreach

Signals pay off when most of these are true for you:

• Your ideal customer covers thousands of companies, so enough of them show a signal in any given week to fill your days.
• Your buyers use LinkedIn in public: they post, comment, change their headline when they move, and their companies announce hires and rounds there.
• Your category has competitors or well-known voices whose posts your buyers engage with, so that engagement tells you who is thinking about the problem.
• People tend to buy after an event you can see, such as a new leader starting, a company hiring a sales team, or a funding round.
• You can act within days. A signal you act on a month later has lost most of its value.

Signals also change the message. The first line can be about the event, which is specific and checkable, instead of about you. Our guide to connection request messages for each buying signal has a sample note for eight of them.

When cold outreach is the better call

Signals assume there are enough buyers to produce them. In small markets the arithmetic runs out quickly. The Australian Bureau of Statistics counted 5,366 businesses with 200 or more employees in Australia at 30 June 2026, and 68,325 with 20 to 199, in figures released on 18 August 2026.

If your category follows the five-year pattern in Dawes's example, apply his rough 5% a quarter to those 5,366 large businesses: about 270 are in the market in a quarter, across every industry. Now suppose your product only suits one industry, and that industry is a tenth of the list, which is our assumption for the example: about 540 companies, of which roughly 27 are shopping this quarter. Only some of those 27 will do anything visible on LinkedIn. Waiting for signals in a market that size can leave you with a handful of names a month.

The sector examples in that table are judgement, not data: some buyers in those fields are very active on LinkedIn. Check your own market before you decide. Look at twenty people who bought from you in the last year and ask whether any of them did something public on LinkedIn in the month before they bought. If most did, signals are likely to work for you. If almost none did, a cold list with good research will do more.

How Bingle runs signals with a cold list underneath

Bingle is LinkedIn only, so this covers LinkedIn. Its sources watch LinkedIn for buying signals and save people who match your ideal customer, running every 6 hours by default. The signals it watches include engagement with a competitor's or influencer's posts or your own, profile views, new roles, hiring, funding and events. You can also paste LinkedIn profile links, one or hundreds, to bring in a cold list you already have; pasted people skip the fit check, so they always show up.

Every lead gets a score from 0 to 100 that blends how well they fit your ideal customer with how strong and recent their signals are, and a line under the name says why they're worth a message now. Signals fade, so a profile view from this week outranks one from last month. Ready to contact means a strong fit with a reason to reach out now; Warm and Nurture are good fits to keep watching. How to score LinkedIn leads by fit and intent works the scoring through with examples.

Bingle's user guide is strict about what counts. Intent is something dated the person or their company did, shown with the date and a link; fitting your ideal customer or being active on LinkedIn isn't intent on its own. A good-fit lead with no intent waits outside the Review queue while Bingle re-reads their posts, profile and company each week, and comes in once it finds something. That's the cold list underneath: people you'd want anyway, checked weekly for a reason to write.

Two more parts help in a small market. People who replied, engaged with you or went into a sequence are watched for a job change, and come back as a lead at their new company. And Dig deeper reads a person's latest posts and their company's news and writes a short brief with why now, why they fit and a suggested opener, which is the research a cold message to a named account needs.

Every message is written in your voice and waits in the Approval queue for your OK unless you switch review off for that sequence, and any reply stops the sequence. Bingle sends from your own LinkedIn in your working hours, spaces actions through the day and starts a newly connected account on lower daily limits. It doesn't send email, doesn't sell a contact database and has no self-serve CRM integration, so if your cold motion runs on email, that part stays in your email tool.

Bingle is 7 days free with the full product and no card, then US$49 a month on Starter, US$79 on Growth or US$149 on Agency for up to 3 LinkedIn accounts; pricing has the details. To see which signals your buyers give off before you sign up, how to find leads showing buying signals walks through it step by step.

Questions

Sources

1. LinkedIn (B2B Institute), Advertising effectiveness and the 95-5 rule: most B2B buyers are not in the market right now, by Professor John Dawes. published May 2021; read 27 Oct 2026
2. John Dawes, The 95:5 rule. credits the rule to Dawes, Ehrenberg-Bass Institute, 2021; read 27 Oct 2026
3. Harvard Business Review, The Short Life of Online Sales Leads, by James B. Oldroyd, Kristina McElheran and David Elkington. March 2011 issue; read 27 Oct 2026
4. Australian Bureau of Statistics, Counts of Australian Businesses, including Entries and Exits, July 2022 - June 2026. released 18 Aug 2026; read 27 Oct 2026

More from the blog

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• LinkedIn connection request messages for each buying signal (with examples)
• Using SEEK and LinkedIn job posts to find Australian companies ready to buy
• Is LinkedIn outreach legal in Australia? What the Spam Act and Privacy Act mean for your messages
• Does Waalaxy have a free plan? What Freemium includes and what it limits
• What Australia's Privacy Act reforms mean for B2B prospecting on LinkedIn

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