Take Your Web Performance to the Next Level with ScriptVitals: Complete Feature Guide

The success of modern websites is directly related to user experience and performance. Google's Core Web Vitals metrics are now among the critical factors that determine search engine rankings. At this point, you need a powerful monitoring solution to measure and optimize your website's performance.

ScriptVitals is a revolutionary platform in web performance monitoring, the only Real User Monitoring (RUM) platform that automatically detects and measures the performance impact of third-party scripts. In this comprehensive guide, we will examine all the features that ScriptVitals offers in detail.

What is ScriptVitals?

ScriptVitals is a production-grade SaaS (Software as a Service) platform for high-traffic websites. The platform's primary purpose is to automatically detect, measure, and provide you with actionable insights about the performance impact of every third-party script on your website.

Why ScriptVitals?

Modern websites load dozens of third-party scripts: Google Analytics, Facebook Pixel, chat widgets, A/B testing tools, advertising platforms, and more. While these scripts provide valuable functionality, they can also significantly impact your website's performance.

Traditional monitoring tools show that your site is slow, but they don't tell you which third-party script is causing the problem. ScriptVitals solves this problem by individually measuring the performance impact of each script and providing you with the information you need to make data-driven decisions.

Core Web Vitals Tracking

Largest Contentful Paint (LCP)

LCP measures how long it takes for the largest content on a page to become visible. ScriptVitals continuously monitors LCP metrics with real user data and reports in detail the impact of third-party scripts on this metric.

• Real-time LCP measurement
• P50, P75, P95 percentile values
• Third-party script-based LCP impact analysis
• Historical trend tracking
• Page-based LCP performance reports

First Contentful Paint (FCP)

FCP measures when the browser renders the first portion of DOM content. ScriptVitals helps you detect performance issues in the early stages of page loading by tracking FCP metrics.

Cumulative Layout Shift (CLS)

CLS measures visual stability as the page loads. High CLS values cause users to experience unexpected content shifts and create a poor user experience.

Interaction to Next Paint (INP)

INP measures how quickly user interactions respond. ScriptVitals monitors response times for button clicks, form submissions, and other interactions.

Time to First Byte (TTFB)

TTFB measures when the first byte is received from the server. ScriptVitals helps you evaluate server response times and network performance by tracking TTFB metrics.

3rd-Party Script Automatic Detection and Attribution

One of ScriptVitals' most powerful features is the automatic detection of third-party scripts and measurement of each one's performance impact.

Automatic Script Detection

The platform automatically identifies 30+ popular third-party providers:

• Analytics Tools: Google Analytics, Adobe Analytics, Mixpanel, Segment, Amplitude
• Social Media Pixels: Facebook Pixel, LinkedIn Insight Tag, Twitter Pixel, TikTok Pixel
• Chat and Support Widgets: Intercom, Drift, Zendesk Chat, LiveChat, HubSpot Chat
• Payment and E-Commerce: Stripe, PayPal, Shopify, WooCommerce
• Advertising and Marketing: Google Ads, Google Tag Manager, Microsoft Advertising
• Other Tools: Hotjar, FullStory, LogRocket, Optimizely, VWO

Performance Attribution

ScriptVitals measures the performance impact of each third-party script in detail:

• Total Blocking Time
• Script load time
• JavaScript execution time
• Network time
• Contribution amount to each Web Vital

Real User Monitoring (RUM)

ScriptVitals uses real user data instead of synthetic tests. This approach accurately reflects your site's real-world performance.

The ScriptVitals SDK collects data using technologies such as Web Vitals API, Performance Observer API, Resource Timing API, and Long Task API.

Advanced Dashboard and Analytics

ScriptVitals' minimal and modern dashboard allows you to see all critical metrics at a glance.

• Real-time performance indicators
• Trend charts (24 hours, 7 days, 30 days)
• Third-party script impact table
• Geographic performance map
• Device and browser distribution

AI-Powered Insights and Recommendations

ScriptVitals provides you with intelligent recommendations using AI-powered analysis:

• Which scripts should be lazy-loaded
• Which scripts can be removed
• Which scripts should be optimized
• ROI analysis-based recommendations

Multi-Domain Support

Manage multiple websites from a single dashboard. ScriptVitals offers unlimited site addition, site-based tracking keys, and site-based configurations.

A/B Testing and Experiments

Test different optimization strategies. With ScriptVitals, you can perform script loading strategies, lazy-loading tests, and alternative script tests.

Webhook Integrations

Transfer performance events to Slack, Microsoft Teams, Discord, and other platforms via webhooks.

Performance Alerts

Create customizable alert rules. Set threshold values for LCP, FCP, CLS, INP, and TTFB and receive automatic notifications.

Traffic Sampling

Configurable sampling feature from 0% to 100% for high-traffic sites. This feature reduces data collection costs and minimizes SDK overhead.

High-Performance Infrastructure

ScriptVitals uses a high-performance database that can process billions of events with ClickHouse and a global edge network with Cloudflare Workers.

Security and Privacy

ScriptVitals is GDPR and CCPA compliant. It does not collect personal information (PII-free), uses anonymous metrics, and offers DNT (Do Not Track) support.

API Access

RESTful API for programmatic access to all platform features. Comprehensive API endpoints for metric queries, site management, alert configuration, and data export.

Lightweight Browser SDK

The ScriptVitals SDK monitors your website's performance with minimal impact:

• <10KB gzipped size
• <10ms overhead
• Offline support (IndexedDB)
• Automatic retry mechanism

Conclusion: Optimize Performance with ScriptVitals

ScriptVitals is a comprehensive solution for web performance monitoring. The platform offers a wide range of features from Core Web Vitals tracking to third-party script attribution, from AI-powered recommendations to real-time alerts.