ABOUT

SAFE Score™

SAFE Score™ is a page-level UX score that combines Seamlessness, Accessibility, Speed and Engagement into a single, comparable measure of user journey performance.

Use SAFE Score™ when you want to:
— Compare performance across a number of key pages
— Track the impact of UX or accessibility changes over time
— Prioritise where to focus design, engineering or CRO effort
— Give stakeholders a simple view of journey quality, not just traffic and revenue

I found many behavioural analytics metrics overwhelming, so I set out to combine a few of the most meaningful ones into a single, easy-to-communicate score out of 100.

This GPT handles the calculations for you:

Try SAFE Score GPT

1—Seamless

Dead clicks (30 days)
→ e.g. 800

2—Accessible

WCAG2.2 score
→ 85

3—Fast

Time to first click
→ 2secs

4—Engaged

Active user engagement
→ 19secs

SEAMLESS

Measures how often users click on elements that do nothing (dead clicks).

— Metric: number of individual dead clicks on a page, over the last 30 days
— Output: Normalised Seamless score (0–100 – fewer dead clicks = higher score)

ACCESSIBLE

Measures how easy the page is to use for everyone.
‍
— Metric: Google Lighthouse accessibility score
— Output: Access score (0–100)

FAST

Measures how quickly users reach meaningful interaction.

— Metric: Time to first click
— Output: Speed score (0–100, based on benchmarks)

ENGAGED

Measures how active a user is on the page.
‍
— Metric: Active engagement time (Time spent scrolling, hovering and clicking)
— Output: Engagement score (0–100, based on benchmarks)

TOTAL

Each page or feature gets a Seamless, Access, Fast and Engaged score between 0 and 100.

SAFE Score™ then combines them into a single weighted total

‍Example bands:
80–100 – Strong: the page is performing well for most users
‍60–79 – Needs improvement: targeted fixes will unlock value
‍Below 60 – Critical: users are struggling and key journeys are at risk

This allows you to benchmark templates, track releases, and share a simple number with non-design stakeholders.

GET STARTED

1. Collect your page data: dead clicks, Lighthouse accessibility score, time to first click and active engagement time. e.g. 403, 95, 2, 20

2. Add the numbers into the SAFE Score™ GPT.

3. Review which pages fall into Strong, Needs Improvement or Critical.

4. Prioritise fixes starting with high-value, low-scoring pages.

Try SAFE Score™ GPT

CONTACT

For enquiries about bringing SAFE Score™ into your workflow, please contact me via the form.

Get in touch.

Thank you for your message.
I'll respond shortly.

Oops! Something went wrong while submitting the form.

SAFE Score™ was created by J-R Le Haye in 2025 as a practical way to connect UX, accessibility and behaviour into a single, human-centred performance metric. J-R is a digital design leader specialising in product design, accessibility and data-led journey optimisation.

SAFE Score™ — © 2025 Jon-Ross Le Haye. All rights reserved.

Christie's 3.0 Virtual Gallery