Catch every problem your users hit.
Automatically.
Spectra is interface intelligence for the web. It checks every visit in your users' own browsers, finds what they can't use, names the release that broke it, and keeps the screen recording so you can watch exactly what happened. Its AI briefing tells you what to fix first.
Free plan, no card, live in a minute. Paid plans from US$9.99 a month.
Every broken experience costs you a customer. Most never tell you.
They leave quietly
If a button doesn't work, people don't email you. They buy somewhere else.
It breaks on phones you never tried
Your team tests on laptops. The problem only shows up on a small phone.
You find out too late
By the time sales drop and someone asks why, a week of customers is gone.
$912,500 a year
That's what one silent failure costs a checkout taking $50,000 a day, if a broken button stops just 1 in 20 buyers. $2,500 a day, every day. No error, no alert, no email.
While you've been reading this page, a broken Pay button like this one has cost that store $0.00.
Spectra catches it the day it starts.
Why your other tools miss it
They check that your site is up. Not that people can use it.
Detection, release intelligence and proof. One engine.
Most teams stitch together an error tracker, a replay tool and a heatmap tool, and still miss the button nobody can tap. Spectra does it in one engine, from one line of code.
Detects problems on its own, and on your terms
Broken buttons, errors, failed requests, pages that never load, rage clicks, stuck loading and more, out of the box. Add your own custom triggers for anything else your business cares about.
Checks every button on every visit
Not a sample. Spectra tests your key buttons on your real users' screens and tells you which ones can't be tapped, and on which phones.
Pinpoints the update that broke it
Spectra compares every version of your site and names the one that broke something, 99% sure before it says so.
Records the moments that matter
Your own triggers decide when to record. Every recording reaches back 30 seconds, so you see the cause, not just the crash.
Gives support and product the truth
Support watches exactly what a customer saw. Product sees where users get stuck, with heatmaps and every click counted on the analytics add-on.
Enterprise-grade, from $9.99
US$9.99 a month to start
Paid tools usually start at $25 to $69 a month. Your whole team is free.
Every problem comes with proof
Watch exactly what the user saw: every tap, scroll, error and request, from the moments before it broke. No more asking which phone they were on.
Know which update broke it. 99% sure.
Every recording knows which version of your site it was on. When a new version breaks something, Spectra tells you which one, and only when it's sure.
Spectra AI Beta
Spectra AI reads your site's last seven days so you don't have to. Every morning it tells you what changed and which visits to watch.
It never makes up numbers: Spectra does the counting, and the AI only writes the sentences. Free on paid plans while in beta.
Small phones couldn't tap Pay after version 2.5.0.
Since yesterday, 214 visits on small phones tapped Pay and hit the cookie banner instead, starting with version 2.5.0 on Sunday. Laptops are fine. Everything else was quiet: rage clicks on the size guide are down by a third.
Enterprise-grade from day one
Checks every visit
Up to 16 key buttons on every page, on every visit. On paid plans.
Your own triggers
Record only when something you care about happens. Change it any time, no code release.
Starts before the problem
Each recording includes the 30 to 60 seconds before, so you see what led to it.
Ultra-fast capture engine
Built for high throughput and low latency: under 1 ms of work per update, heavy lifting in the background, and zero freezes on your page.
Private by default
No cookies and no IP addresses, ever. Card numbers and private fields are hidden before anything leaves the browser.
Stored in the EU
Your recordings stay in the EU and are never copied outside it. A data processing agreement covers every plan.
Problems, grouped
The same problem counts once, biggest first, so you fix what matters most.
Whole team free
Add everyone who needs to see it. You pay for visits, never for users.
See where people click and scroll
Heatmaps show which buttons get clicked and how far people scroll, on every page. Here, half the clicks went to one plan, and almost nobody scrolled to the comparison.
Your traffic, without a second analytics tool
Every paid plan counts who visited, where they came from, what they read and what they bought, on the same Overview as the problems they hit.
- Where visitors come from, including AI assistants like ChatGPT and Perplexity
- Which campaigns and links bring them in
- Signups and purchases, and what they were worth
- Three months of history on every paid plan
Needs no cookies and no IP addresses, and your data stays in the EU.
Private information never leaves the browser
Card numbers, addresses and anything else you mark are hidden on the user's device, before anything is sent. We never see them.
Three steps, about a minute
-
1
Add one line
Paste one line of code into your site.
-
2
Choose what to record
Errors and frustrated users are recorded for you. Add your own triggers for anything else.
-
3
Watch what went wrong
When something breaks, the screen recording is waiting. Share it with a link.
<script src="https://api.spectra-trace.com/v1/s.js" data-api-key="YOUR_KEY" data-site-id="YOUR_SITE"></script>
Enterprise-grade detection. A price your finance team will love.
Replay and monitoring tools usually start at $25 to $69 a month, and enterprise suites run to $10,000 a year and more. Spectra starts at US$9.99, with your whole team included, so your budget goes on growth, not on watching.
- StartupsStart free, go live today, upgrade at $9.99.
- Growing teamsOne flat price, up to 2 sites, no seat fees, no surprise bills.
- EnterpriseMore than 250,000 visits a month, priced for you: contact us.
One MMS is one visit to your site: checked for problems, and recorded when something goes wrong.
Need a custom plan?
More sites, more visits, longer history, or your own terms. We'll build a plan around you.
From the blog
What breaks on real websites, and how the best teams see it first
Questions people ask
How does Spectra know a button could not be pressed?
On every visit, Spectra checks whether your important buttons can actually be tapped, or whether something is covering them, like a cookie banner or a chat bubble. If something is in the way, it notes which button, on which screen size and which version of your site. It doesn't take screenshots, so it works on every page.
Which plans check my key controls?
Every paid plan, from US$9.99 a month. The free plan records screens and groups errors into issues. Button checks, finding the version that broke something, and Spectra AI come with any paid plan.
How long does installing it take?
About a minute. Paste one line into your site, or install the package if you would rather. Recording starts on the next visit, and the dashboard tells you when the first one arrives.
Will it slow my site down?
Hardly. It does its work in the background, holds its checks of your page for moments nobody is using it, and its size is checked on every release rather than asking you to take our word for it.
What happens to my customers' personal information?
Card fields, addresses and anything else you mark are hidden on the device before anything is sent, so what reaches us is already covered up. There is nothing to remove afterwards, because it was never there. Recordings are stored in the EU and never copied outside it, and our data processing agreement covers every plan.
Do I need a cookie banner for Spectra?
Spectra sets no cookies and never collects IP addresses. By default it remembers a returning visitor with an anonymous ID kept in their browser. Turn on cookieless mode, one setting in the snippet, and nothing is kept on the visitor's device once the visit ends, so Spectra gives your banner nothing to ask about.
What exactly counts against my plan?
One MMS is one monitored visit: everything one person did in one sitting, however many pages that covered. Visits we measure but do not record still count, because measuring them is what makes the analytics cover your whole audience.
Do you charge per person on the team?
No. Every plan includes everyone, including the free one. Support, product and engineering can all sign in without it changing the bill.
Can I share a recording with someone who has no account?
Yes. Any recording can be given a link that works without signing in, and you can revoke the link later.
Catch the next problem before your customers do
Start free with 500 visits a month. No card needed.