In this update, we’ve introduced new features, improved the A/B Testing experience, and fixed several issues to make workflows more intuitive and efficient.

New feature - Recently visited pages

We’ve added a new Recents section in the left menu to help users quickly revisit previously accessed pages. You can now pin important pages for easy access and reorder them using drag-and-drop.

A/B Testing Enhancements

We’ve improved the A/B Testing flow by prioritizing applicable categories, making it easier to apply suggestions

Additional guidance is now provided after running tests,

and notification actions allow you to quickly view or compare results.

We’ve also enhanced clarity by displaying the test name in the title and repositioning key action buttons.

Other Enhancements

We’ve simplified Client and Project setup by grouping options under Advanced Settings.

Users can now choose to share either a specific test point or always the latest one when sharing a page.

Bug Fixes

Dashboard:

• Fixed an issue where data was not displayed for the latest 10 test points when using a custom weekly schedule
• Fixed an issue where search results were not cleared after selection, which could sometimes cause confusion

Manage Email Subscription:

• Fixed an issue where a flashing warning message appeared when opening the unsubscribe page via an email link

We are excited to announce the launch of a new beta feature called A/B Testing in the Performance Insights tool, a new way to experiment with optimizations on any page before modifying your codebase. A/B Testing lets you select suggested optimizations from four categories — Performance, Accessibility, Best Practices, and Custom — and run them as an experiment against your original test.

How to use the A/B Testing

Navigate to any page report and select the A/B Testing tab from the left-hand menu.

Expand the category with issues in each session. It includes a description of the issue, what the optimization does, and how it can improve your site metrics. Select “Apply Suggestion” if the checkbox is available to include it in your experiment.

You can also edit the site HTML in Custom session and apply the changes to your experiment

When you are ready, click Run Test to automatically queue both a control test (the page unchanged) and an experiment test with your chosen optimizations applied. Wait for a few minutes for the tests to complete. The results of both tests are displayed in a Compare session, allowing you to assess the impact your applied optimizations had on Lighthouse scores, Web Vitals and other metrics.

To view the test details of the experiment test, click on the View Report icon of the experiment test (Test 2 in the image above)

For more information read about A/B Testing in our docs.

Please note: Both the control and experiment tests are run over HTTP in order to support the experiment functionality.

Known Limitations

As this is a beta release, please be aware of the following known limitations:

• JavaScript can modify the DOM structure; therefore, some actions may not work if the DOM is changed by JavaScript.
• Image assets that are loaded from CSS will also not be able to apply these actions.
• Images from picture tag sometimes doesn’t work with the experiment test
• The resources have special characters may not work with the experiment test
• For SPA (Single Page Applications), these actions often do not work correctly and are generally recommended only for SSR (Server-Side Rendering).

If you encounter any additional issues, please inform the team via the chatbox in the tool

In this update, we’ve upgraded Lighthouse from version 13.0.1 to 13.0.3, and Chrome from version 143 to 146.

These changes do not affect most synthetic metrics. For full details, please refer to the official release notes:

• Chrome 146 Release Notes
• Lighthouse Release Notes

Browser Waterfall

In this update, we introduced several UX/UI improvements to the Browser Waterfall. Each request now includes a resource-type tag, so you no longer need to click into details or remember color mappings to identify resources.

Hovering over a request now displays additional information, helping you quickly understand request details without extra clicks.

We also reduced the height of the Browser Main Thread to provide more space for displaying requests.

Uptime Monitoring

You can now enable or disable Uptime Monitoring and configure check intervals for multiple sites at once. This eliminates the need to visit each site individually, saving time and simplifying large-scale monitoring setup.

Threshold Alert

We’ve enhanced threshold alert configuration to be more flexible. You can now choose to set alerts based on a specific metric threshold, rate of change, or a combination of both. This allows you to better tailor alerts to match your monitoring needs and reduce unnecessary notifications.

To learn how to create custom dashboards and configure threshold alerts, please visit: https://perfdocs.niteco.com/docs/custom-dashboards

Browser Waterfall Enhancements

You can now group third-party requests directly in the Browser Waterfall via settings.

This gives you instant visibility into how many third-party requests are loaded and how much total size they consume — making performance bottlenecks easier to spot than ever.

PDF Reports & Sharing

You can now generate PDF reports and send them directly to your logged-in email using the “Export and Send Email” option in the "Export PDF" wizard.

You can now quickly access recently generated reports directly from notifications—no need to regenerate them. All PDF reports created within the last 30 days are automatically saved and can be easily accessed, shared via email, or downloaded anytime.

In this update, we’ve upgraded Lighthouse from version 12.6.0 to 13.0.1, and Chrome from version 136 to 142.

These changes do not affect most synthetic metrics. For full details, please refer to the official release notes:

• Chrome 142 Release Notes
• Lighthouse Release Notes

Uptime Enhancements

In this update, we’ve made several improvements to the Uptime filter. Sites that are currently down will now always appear at the top, making it easier for you to identify issues quickly (alongside the downtime alert emails). The Uptime filter also refreshes automatically every 30 seconds, so you no longer need to manually reload the page to view updated data.

Another improvement is that you can now enable Uptime monitoring for each individual page within a site. Previously, only the first page was monitored for uptime, but now you can choose to monitor all pages or only specific ones.

Desktop Configuration Update

We’ve also renamed Desktop Slow to Desktop and updated its device configuration, as shown in the image.

The previous Desktop configuration has been removed since it was duplicated by the new one. For sites that previously ran tests using the removed Desktop configuration, don’t worry—your test data has not been lost. We have merged all data into the default Desktop configuration, so your full test history remains intact.

Please note that with these device configuration changes, your Lighthouse performance metrics (Performance, Accessibility, Best Practices, and SEO) will remain unaffected, while your Web Vitals metrics may improve slightly for upcoming tests.

Uptime Filter in Dashboard

We’ve added a new Uptime Filter to the Dashboard! Now you can quickly focus on all sites that have uptime monitoring enabled — no more endless scrolling to find them. This gives you a clearer and more organized view of your monitored sites at a glance.

“Above the Fold” Tag in Browser Waterfall

Resources that load above the fold are now automatically tagged in the Browser Waterfall view. This helps you easily identify critical assets that affect the first visible part of the page, so you can optimize them to improve the user’s initial loading experience.

Heads up: You’ll see this tag only in test results from October 16, 2025 and later.

In this update, we've added a new feature that alerts users when an SSL certificate is about to expire. This allows timely renewal to prevent service interruptions, security warnings, or potential vulnerabilities.

We've also introduced a feature that detects mismatches between the site's environment settings and its robots.txt configuration.

• If the site is set to a production environment, robots.txt should allow crawling so search engines can index the content.
• Conversely, if the site is in a non-production environment (e.g., UAT, staging, development), robots.txt should be set to disallow crawling to prevent test content from being indexed by search engines.

To receive these alerts, users can subscribe at the client, project, or site level in Alert Settings tab. See how to subscribe to alerts here

To unsubscribe from this specific type of alert, go to My Email Subscriptions or click on the Manage Subscription link of the email you received and uncheck the Web Config option

New Device Options in Dropdown List

In this update, we’ve added more device options for users to quickly select from the dropdown list:

• Desktop Fast
• Desktop
• Mobile Fast
• Mobile Slow

Users can view detailed information such as viewport, connection, latency, and bandwidth of each device by hovering over the device name in the list.

The default value for "Desktop" has not changed but has been renamed to "Desktop Slow" for better clarity.

New Feature: Cookie Scanning & Auto setCookie Scripting

We’re introducing a new feature that allows you to scan cookies and automatically addsetCookie scripts to your site scripting.

To scan cookies: When adding or editing a site, click the Scripting icon. Then, click the Cookie icon to start scanning

Please note that Cookie consent scripting may not work as expected due to changes made by providers. For issues with supported cookies, please contact: [email protected]

Supported Cookie Providers

The system currently supports the following cookie providers:

• OneTrust
• Cookiebot
• Didomi
• CookieYes
• CookieLawInfo
• CookieFirst
• Osano
• Sourcepoint
• Tealium
• CookieScript
• Cookie Information
• CookieReports
• BigID
• PiwikPro
• TrustArc
• Ketch

Other Improvements

Overview Screen Improvement

We've added the total number of issues for Performance, Accessibility, Best Practices, and SEO, allowing users to quickly see how many issues are present at a glance.

Unsubscribe to Metric Threshold Alert

Users can now manage Metric Threshold Alerts from the "My Email Subscriptions" screen, the "Alert Settings" tab at the Client, or by using the unsubscribe link in alert emails.