Boost the performance of your websites with one line of code by loading your third-party tools on our backend instead of your end users’ browser.
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Improve conversion rates and SEO rankings by solving third-party tool slowdown.
Learn moreA multitude of unique features to free your end users’ browser from downloading and executing countless excessive scripts.
Zaraz allows most tools to send their information through the Zaraz backend, replacing multiple network requests with a single request. The request is then adjusted to the tool data structure and forwarded to their server without running any scripts on the user's browser at all.
For the majority of popular conversion pixels, Zaraz mimics the script behavior on its backend and then makes the browser fire the already constructed request, meaning no third-party JavaScript is ever delivered or evaluated on the browser.
Zaraz replaces heavy third-party widgets with a lighter-weight version that loads first so that the full-featured tool loads only when the browser reaches interactivity or upon user interaction.
Since some tools work only on a sample set of your visitors (e.g., session recording tools), Zaraz prevents the delivery and parsing of their JavaScript by the user’s browser when it’s not needed.
Zaraz delays loading of specific tools until after the website reaches interactivity so they won’t compete with the website for the same resources. To ensure data collection is working properly, Zaraz prebuilds the necessary outgoing requests and fires them if the page was closed before the delay window finished.
For session recording tools, Zaraz creates one bundled script by prefetching required assets, saving the browser from making hundreds of separate HTTP requests. It also takes care of updating the main script when those external resources are updated.
For tools that need to be loaded as early as possible (e.g., A/B testing tools), Zaraz fetches third-party scripts and inlines them in the website HTML as part of your CI/CD process.
Measure the slowdown created by third-party tools and external scripts on your website for free.
Enter a URL and get a report based on Google Lighthouse and Core Web Vitals metrics.
Use Zaraz to load your entire third-party stack: Analytics, Marketing Automation, Advertising, CRM, Chat, Security and Social Media. We optimize everything for you!
Zaraz is not in the ad business. We send your data to all the tools you want to use, but we do not save or collect any of it. Period.
Protect your customers by masking fields of data from third parties. We give you centralized control over exactly what data is being sent to your third parties. Hide IP addresses, email or device identifiers from your media partners and enhance your customer privacy with Zaraz.
Read moreWe prevent malicious code from entering your website in case your third-party provider was hacked, by scanning your third parties for changes before they are bundled and served to your users.
Read moreSee for yourself how Zaraz improves your website speed and helps you manage your third parties.