Catch Website Failures Before Your Customers Do

Catch checkout failures, API errors, and broken user journeys before they cost you customer trust and revenue.

10 website for free

AI test generation

Real-time alerts

Public status pages

Acumen Logs Synthetic dashboard screenshot

Trusted by Top-tier product companies

Uptime, Journeys, and APIs

Your Site Can Be Up While Checkout Is Broken

Acumen Logs monitors uptime, user journeys, APIs, and background jobs, then alerts you when something fails. A page can return 200 while checkout, an API, or a scheduled job is already broken.

Start monitoring free See what we monitor

No credit card. The free plan stays free. Paid plans from $5 a month.

First monitor

About a minute

Check interval

From every minute

Alerts

Slack, Teams, Email

To start

Free, or just $5/m

northline.example

3 failing right now

Homepage Uptime

GET / · Checked every 1m from London

200 OK

212 ms · 99.98%

Customer checkout flow Synthetic

Step 4 of 5: Payment button timed out

Failed

3.2 s · Screenshot

POST /api/checkout API

Expected status 200 & valid order_id JSON

500 Error

3.2 s · Payload

Nightly order sync Heartbeat

Expected daily at 02:00 UTC · 5m grace

Missed

14m overdue

Alert sent to #ops-alerts

Screenshot & console logs attached

What a Ping Misses

Uptime monitoring tells you a server responded. But checkout, API, and background job failures can still cost you revenue.

Uptime

The website responds

Check your website from multiple regions for availability, response time, status codes, and matching text. This catches outages, but not every broken user journey.

Synthetic

The user journey fails

Test login and checkout in a real browser on a schedule. Build a journey from a prompt or record it in Chrome, then inspect screenshots, console errors, and requests.

API

The API responds incorrectly

Chain requests, pass tokens between steps, and validate JSON responses. A successful status code can still hide incorrect data.

Heartbeat

A scheduled job goes silent

Backups, invoices, and workers check in when they finish. If a check-in is missed, you get alerted even while the website remains online.

The Platform

Every layer, one dashboard, and one set of alerts. Start with a URL, add user journeys, API checks, and job monitoring as you grow, and get alerts by email, Slack, Teams, desktop, SMS, or webhook.

Uptime monitoring

Track site availability every minute across multiple regions with latency and text matching.

Uptime →

Synthetic monitoring

Test real browser journeys using AI, the Chrome recorder, or the no-code builder.

Synthetic →

API monitoring

Validate multi-step API workflows with chained requests, token passing, and JSON assertions.

API →

Heartbeat monitoring

Monitor cron jobs and background workers with separate alerts for late or missed check-ins.

Heartbeat →

SSL monitoring

Track certificate health and expiration dates to prevent unexpected browser security warnings.

SSL →

WHOIS monitoring

Monitor domain registration status and renewal timelines to prevent accidental lapses.

WHOIS →

Status pages

Publish branded public or private status pages powered directly by your live monitors.

Status pages →

Real user monitoring

Measure live visitor speeds, Core Web Vitals, and performance by device and country.

RUM →

Who it's for

Monitoring built for the way your team works.

Development teams

Monitor login journeys, checkout flows, and the APIs behind them. Get a Slack alert when a deployment breaks something.

E-commerce teams

Monitor the purchase journey, payment API, and SSL certificate together so you catch checkout problems before they affect more orders.

Hosts and agencies

Monitor multiple client sites from one account, with branded status pages and a WHMCS module for monitoring services you resell.

WHMCS module →

Set Up Your First Monitor in Minutes

No software to install on your servers.

Add a URL or journey

Paste a URL to monitor uptime, or describe a checkout in one sentence and let AI draft the steps.

Choose your alert settings

Get email alerts on every plan, or connect Slack, Teams, desktop, and webhooks on Solo and above. Set how many failures trigger an alert.

Let the monitoring start

Checks run automatically. When something fails, review the status and timing, plus a screenshot for browser journeys.

What Teams are Saying

Trusted by Agencies, Hosts, and SaaS Teams. Real feedback from teams monitoring live websites

Enterprise Fleet Spotlight Verified Customer

"Our experience with Acumen Logs has been outstanding. They played a crucial role in helping us quickly onboard several hundred sites for both uptime and synthetic monitoring, and their willingness to develop features based on our specific requirements was a game-changer."

Read full review + Show less −

Their flexible payment models made it easy for us to tailor the service to our needs, providing invaluable support every step of the way. Their responsiveness and commitment to consistent platform updates have exceeded our expectations, and working with their team has been an absolute pleasure. Highly recommend!

Jared · Prisim RBS

100s of Sites

Onboarded seamlessly

Uptime + Synthetic

Unified fleet coverage

Ecommerce Fleet

"We needed to transition to a new monitoring system for the many ecommerce sites we support, and Acumen stepped in and filled the void in a terrific way. Very responsive—quickly implementing bug fixes and enhancement requests. A+"

Full quote + Less −

In the months that we've been using the platform there have already been several new features introduced, and I assume things will continue to get even better from here.

Brian · Prisim RBS

User Journeys

"We're using the synthetic monitoring and uptime monitoring. Really easy setup process for user journey based synthetic monitoring, and all the reporting options we needed."

Phil · PTDistinction

Hosting Provider

"Love the support we got from Acumen Logs! Highly recommended."

Mark · HostingNL

What Teams Are Saying

Trusted by agencies, hosts, and SaaS teams

Verified feedback across production fleets

Enterprise Fleet Spotlight Verified Customer

Read full review + Show less −

Jared · Prisim RBS

100s of Sites

Onboarded seamlessly

Uptime + Synthetic

Unified fleet coverage

Ecommerce Fleet

Full quote + Less −

In the months that we've been using the platform there have already been several new features introduced, and I assume things will continue to get even better from here.

Brian · Prisim RBS

User Journeys

"We're using the synthetic monitoring and uptime monitoring. Really easy setup process for user journey based synthetic monitoring, and all the reporting options we needed."

Phil · PTDistinction

Hosting Provider

"Love the support we got from Acumen Logs! Highly recommended."

Mark · HostingNL

Start Free. Get Minute-by-Minute Checks for $5.

No credit card required. Choose your plan after signing up, and change it whenever you need to.

per month

60 synthetic monitoring tokens
10 uptime, SSL and WHOIS checks, every 10 minutes
Docker integration and the Chrome plugin
Email alerts

Create a free account

per month

150 synthetic monitoring tokens
100 uptime, SSL and WHOIS checks, every minute
10 status pages with custom domains
Email, Slack, Teams, desktop and webhook alerts

$39.99

per month

1,200 synthetic monitoring tokens
150 uptime, SSL and WHOIS checks, every minute
Video recording and trace logs
14-day trial once you select this plan

Pro is $149.99 a month for teams with a heavy CI suite. Essentials includes video and a 14-day trial once you select that plan.

See every plan →

FAQ

Frequently Asked Questions

Where should I start?

Most teams start with uptime monitoring on their key URLs, then add a synthetic journey on the path that makes money, such as checkout or sign-up.

Do I need a separate account for each product?

No. Every product lives in the same account and dashboard, with the same alert channels.

What is the difference between uptime and synthetic monitoring?

Uptime confirms the server answers. Synthetic monitoring runs a real browser through a journey, so it catches a broken button or a script error while the homepage still loads.

Do I need to write code?

No. Record a journey with the Chrome extension, build it in the no-code builder, or describe it in a sentence and let the AI build it.

Show all questions Show fewer questions

Can I share results with clients?

Yes. Status pages can be public or private, and you can share test data with your team or your clients.

Is there a free plan?

Yes. The free plan needs no credit card and includes 10 uptime, SSL, and WHOIS checks, 60 synthetic tokens a month, email alerts, and a status page.

Explore Acumen Logs Monitoring Tools

Free website testing tools, monitoring products, and practical engineering guides.

Free website testing tools

Uptime test SSL checker WHOIS lookup RDAP lookup

Key products

Uptime Synthetic API Heartbeat

AI builder AI-powered

Describe a user journey. Let AI build the test.

Create complete synthetic journeys from a simple prompt.

Explore builder →

03 Resources & guides

Blog Knowledge base GitHub CI Action guide

Acumen Logs

Find Checkout Problems Before Your Customers Do

Start with one URL. Add user journeys when uptime checks are no longer enough.

Start monitoring free See pricing