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THE LEAD FLOWPRO / YOUR NEXT MOVE

Websites and Digital · Calculator · Free

Explore a hypothetical speed scenario Slow Website Cost Calculator

Compare an illustrative speed-retention curve with a two-second scenario. This is not a measurement of lost customers or revenue.

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Runs in your browser. Nothing to install. Save the result or embed it on your site.

Illustration for the Slow Website Cost Calculator: a calculator mark on a websites and digital background in The LeadFlow Pro colours.
Working toolUse it before you book anything.

Your numbers

What that means

Illustrative annual revenue gap: $38,102
$38,102
Illustrative annual revenue gap
$3,175 a month
729
Modeled visitors leaving
7.5
Modeled customers at entered speed
11.5
At a 2 second load
$10,886/yr
Modeled gap per extra second
Visitors who stick around by load time
1s1,800
2s1,638
3s1,476
5s1,152
8s666

Measure your page on representative mobile connections. Identify the slow resources, change one issue, and compare real measurements.

Illustration only: the arbitrary curve removes nine percentage points of retention per second beyond one second, with a 25% floor. It is unvalidated and cannot establish lost sales or causal improvement. Conversion is applied to retained visitors, so do not enter a site-wide conversion rate without adjusting its denominator.

What this assumed

  • Uses an arbitrary, unvalidated retention curve for illustration. It does not measure actual abandonment, conversions or lost sales.

Runs in your browser. Nothing you type is sent anywhere.

This is an estimate

This tool returns an estimate based on the numbers you entered. Your real result depends on your own costs, rates and conditions. Check it against your own records before you make a decision with it.

What this tool actually does for you

Who it is for

Anyone whose site was built on a page builder loaded with plugins and sliders.

The problem it points at

Your site takes six seconds on a phone in a truck on rural data. A big share of visitors never see it at all.

What you walk away with

The revenue tied up in load time, so speed stops being a nerd argument.

How to use it

Takes about two minutes. Be honest with the numbers, the tool is not going to tell anybody.

  1. Test your site on PageSpeed Insights and get your real mobile load time.
  2. Enter your monthly visitors and what a customer is worth.
  3. Compare scenarios, then measure actual visitor behavior.
Run it now

Keep learning

Go a little deeper.

See how this tool fits a practical task, with a guide you can follow at your own pace.

What a slow website costs a used car lot

Every second of load time on a mobile connection costs you shoppers before they ever see a vehicle. Work out what your site speed is costing in leads and units.

Read the guide

Put this tool on your own website

Free forever. I host it. You keep it.

This is a real lead magnet you can run on your own site tonight. Somebody lands on your page, plays with the numbers, sees what their problem costs, and now they are on your website instead of a competitor's. Costs you nothing, and I keep it working.

  1. Scroll up and press Put this tool on my website. The code appears right there, no form.
  2. Copy the one line you get.
  3. In your website editor, add an Embed, HTML or Custom Code block on whatever page you want it on.
  4. Paste it in, save, publish.
  5. Check it on your phone, then send people to that page.

Works on

WordPress, Wix, Squarespace, Shopify, GoDaddy, Webflow, Duda, HubSpot, ClickFunnels, or plain HTML. Anywhere that takes an embed code.

What it costs you

Nothing. No monthly fee, no expiring trial, no watermark you have to pay to remove. If you get stuck putting it in, text me at (903) 500-8898 and I will help you place it.

Part of these collections

Home services and tradesRealtors and real estateMortgage and lending

While you are here

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One useful tool is the proof

Now imagine the whole website doing real work.

A five-page site built to capture leads and follow up, in accounts you own. The result is a working site, not a promise of leads.

See what we buildBrowse all 86 tools