Synthetic monitoring

Synthetic monitoring, the technique of using a real browser to replay a scripted recording of transactions—common paths that users take on a website or web application—can help detect performance issues before they impact customers.

With Site24x7's superior synthetic monitoring capabilities, you can continuously test the availability, performance, and functionality for all critical components that help deliver your digital business to guarantee site reliability and a better end-user experience.

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A dashboard displaying metric values for uptime %, page load time, SLA along with trouble and downtime events and a stacked area chart representing transaction time

Synthetic uptime monitoring

Reduce the risk of downtime going unnoticed

Monitor site availability

Run synthetic tests at periodic intervals as low as one minute from more than 110 global locations against your websites, APIs, and web applications, and monitor for a successful response. Leverage historical data to identify monthly trends and seasonality.

Verify response

Use regular expression patterns or strings to check for the presence of a value in the returned response body. You can also verify web server configuration by adding response headers.

Go beyond website uptime

Monitor dependent resources like DNS servers, SSL certificates, mail servers, WebSocket endpoints, and more to get a complete view of all the resources powering your service

We're better able to monitor customer needs and respond quickly to maintain an exceptional level of customer service. With the help of this tool, we can focus less on the day-to-day tasks of keeping our cloud running, and more on continuous improvement, and rapidly delivering innovative, industry -specific solutions for our customers,

Ethan Cohen

Operations manager, Epicor software

Synthetic performance monitoring

Benchmark and improve site speed and performance

Waterfall analysis

Understand the loading behavior of your page. Get a visual representation of all requests your page makes with timing breakdown and order.

Optimize every byte

Identify resources—CSS, web fonts, images, and JavaScript—that detrimentally affect loading and rendering performance.

PageSpeed Insights

Don't know where to start? From an efficient caching policy to deferring parser blocking resources, get all the recommendations you need to deliver better performance

Synthetic transaction monitoring

Detect and resolve issues for an optimum site experience

Simulate transactions

Use our browser extension to record critical business transactions, and check them from multiple locations by simulating traffic. Record typical user paths or actions like a form submission, add to shopping cart, or import Selenium IDE test scripts, and play them back at regular intervals on a real browser like Chrome or Firefox to ensure an error-free experience for your users.

API monitoring

Add JSONPath or XPath assertions to validate responses for APIs underpinning your mobile and web apps. Extract variables from a previous response, and create a chained API request to test real business workflows. Expand your coverage. Download our mobile network poller and test your mobile app APIs via networks provided by wireless carriers.

Proactively address issues

Quickly check whether the new functionalities of your web application and internal websites are working as expected by running tests from within your private network using our locally installable on-premise poller software.

Key features of Site24x7 synthetic monitoring tool

Alerts and Integrations

Get notifications via email, SMS, voice calls, or feed critical alarms to tools you already use like PagerDuty, Microsoft Teams, Slack, Opsgenie, and more.

Root Cause Analysis (RCA)

Get detailed downtime analyses—Ping, DNS resolution, traceroute, and MTR reports—for every outage.

SLA Report

Showcase your adherence to service-level agreement (SLA) commitments, and also hold third-party service providers accountable for uptime.

More than 110 locations

Choose your preferred monitoring locations from an ever-growing global network to conduct tests from where your customers are.

Anomaly detection

Spot difficult to identify regressions. Our machine learning (ML)-powered anomaly detection engine automatically baselines metrics like response time to identify aberrations.


Integrate your existing internal tools with Site24x7 APIs to manage monitored resources and access data.

Zero false alerts

Burdened by incorrect alerts? Site24x7 conducts false positive rechecks from secondary locations when a resource returns an unsuccessful response.


Select the appropriate check frequency, choose between different HTTP methods, set additional request headers, and more.

Hosted status page

Communicate about incidents affecting your service to reduce support costs and build trust with your customers.

Still, wondering whether a synthetic monitoring solution is right for your digital business?

Maybe these FAQs can help!

Synthetic monitoring is a technique used by IT admins and webmasters to monitor websites, APIs, web or mobile-based applications, and intranet sites without using actual real user traffic. It could be a simple test to determine whether a port is up or a complex test that simulates typical user actions on a site.

Based on the resources you wish to monitor, a comprehensive monitoring tool can offer different synthetic tests for uptime, performance, and functionality.

  • Uptime: Website (HTTP/HTTPS monitoring), REST API, DNS server, Ping, WebSockets, TCP/IP ports, SMTP/POP/IMAP, NTP server, and UDP port.
  • Performance: FTP file transfer, web page speed, and mail server (RTT).
  • Functionality: Checking API responses, monitoring APIs in sequence, and web transactions.

Synthetic transaction monitoring is the method of actively monitoring complex business transactions by emulating real user paths and actions on a browser.

  1. The customer creates a scripted recording of web transactions to simulate the multiple steps that an actual user might take on his/her website.
  2. Poll frequency, monitoring locations, wait times for each action, and response time thresholds are also configured.
  3. The monitoring provider will then use browser automation tools (typically Selenium) to test load time and key site functionalities at regular intervals and send out an alert if a threshold violation or issue occurs.
  • Ensure the availability of your website or web application.
  • Fix the issues before it affects your end-users.
  • Keep track of your page load time or response time.
  • Check the performance of your page assets and third-party services.
  • Set realistic SLAs for your service and hold your third-party providers accountable for any breaches.
  • Track the performance of your website during low-traffic hours.
  • Discover possible glitches right at the pre-production stage.
  • Help businesses to baseline performances and compare against the competition
Synthetic Transaction Monitoring Real User Monitoring
Active monitoring Passive monitoring
Simulates regularly traversed paths on a real browser and tracks metrics associated with these interactions. Captures real user information and page load time for real user interactions.
Provides consistent and predictable availability and performance data. Uses a JavaScript code snippet to capture metrics from resource and navigation timing APIs.
Useful in a pre-production environment to identify possible issues in site functionality. Effective in identifying the user experience delivered by apps on real users.

Ensure the success of your online venture with synthetic monitoring tool

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