Lighthouse 13.x Ready
seo@gtmetrix.com
GT Vitals Logo
GT VITALS .IN Speed & Web Vitals Optimizer
Instant Google Lighthouse 12.2 Engine

Test & Fix Your Website Speed for India & Global Users

Analyze Core Web Vitals (LCP, INP, CLS) and get actionable code fixes in 10 seconds. 100% Free • No Sign-up Required.

Fast 4G Mobile Simulation Mumbai, India AWS Node 5 Free Tests/Day
Try samples: Flipkart • Amazon • Meesho
Google Algorithm & CrUX Telemetry

The 4 Core Web Vitals That Rule Your Search Rankings

Google assesses your website based on real user Chrome User Experience Report (CrUX) data. Failing even one metric can suppress your organic search positions and increase paid ad CPC.

LCP < 2.5s Perceived Load

Largest Contentful Paint

Measures how fast the primary visual content (hero banner, main product image, or H1 heading) renders on mobile screens.

Bottleneck: Render-blocking CSS & heavy hero images
INP < 200ms Responsiveness

Interaction to Next Paint

Evaluates overall responsiveness across every tap, click, and keystroke during a visitor's entire session. Replaced FID in 2024.

Bottleneck: Heavy main-thread JS & third-party trackers
CLS < 0.1 Visual Stability

Cumulative Layout Shift

Quantifies unexpected layout jumping as images, fonts, and advertisements load asynchronously, preventing accidental misclicks.

Bottleneck: Missing image dimensions & late web fonts
TTFB < 0.8s Server Latency

Time to First Byte

Measures the initial round-trip latency for your web server and database to deliver the first byte of HTML to the visitor's mobile browser.

Bottleneck: Slow shared hosting, missing Redis, no edge CDN
Business Impact

Every 100ms Delay Leaks 1% of Your Sales

According to research by Google, Akamai, and Amazon, websites loading in 1.5 seconds have a 3x higher checkout conversion rate than sites loading in 4.8 seconds.

Sample Store: 50,000 monthly visitors -21.4% Conversion Penalty
Monthly Sales Lost ₹1.85 Lakhs At 4.8s mobile load speed
Recoverable / Year +₹22.2 Lakhs By achieving 1.5s speed

Try our full interactive calculator with your custom store traffic and order value.

CMS & Framework Architecture

Tailored Performance Engineering for Every Stack

Different architectures require distinct optimization techniques. Here is how our engineering sprints systematically resolve platform-specific bottlenecks.

Open Source CMS

WordPress & WooCommerce

90+ Target

WordPress sites often suffer from unindexed database tables, 20+ plugins loading render-blocking scripts across every post, and unoptimized page builders.

Our Surgical Optimizations:
  • Redis Object Cache & MySQL transient query cleanup
  • Per-page CSS/JS asset dequeuing (Asset CleanUp)
  • LiteSpeed / Nginx FastCGI micro-caching rules
  • Automated WebP/AVIF generation & CDN offload
Managed SaaS

Shopify & Headless Stores

85-92 Target

Shopify merchants struggle with marketing apps (Meta Pixel, Klaviyo, reviews, live chat) that inject heavy synchronous JavaScript into theme.liquid.

Our Surgical Optimizations:
  • App script deferral until genuine user touch / interaction
  • theme.liquid cleanup & removal of orphaned app snippets
  • Responsive image srcset & zero-CLS media containers
  • Collection page DOM flattening & lazy hydration
Modern Web & API

Custom PHP, Laravel & React

95-100 Target

Custom web apps encounter hydration mismatches, massive un-chunked Webpack/Vite bundles, and uncached server endpoints driving TTFB above 1.5 seconds.

Our Surgical Optimizations:
  • Edge CDN caching with stale-while-revalidate policies
  • Dynamic code splitting & route-based bundle chunking
  • Sub-40ms TTFB database query tuning & OPcache
  • Critical CSS extraction & early font preloading
The GT Vitals Engineering Method

How We Deliver a 90+ Mobile Score in 48-72 Hours

We do not just install generic plugins. Senior performance engineers profile your website line-by-line, fix root bottlenecks, and verify on real 4G devices with a 100% money-back guarantee.

01 Audit & Profiling

Deep Waterfall & Flame Graph Diagnostic

We capture real network traces, CPU profiling flame graphs, and database queries. We identify exact scripts locking the main browser thread and stalling first paint.

Deliverable: Comprehensive Bottleneck Blueprint
02 Surgical Refactor

Non-Destructive Code & Cache Refactoring

Our engineers inline critical CSS, defer third-party analytics until user engagement, compress assets to modern WebP/AVIF formats, and configure server-level Redis object caching.

Zero Downtime • Zero Design Breakage
03 100% Guaranteed

Real Device Verification & Guarantee Handover

We run comparative audits across simulated 4G mobile devices. Your site hits 90+ on Google Lighthouse and passes Core Web Vitals, or you receive an immediate full refund.

Money-Back Guarantee Protected
Domestic Edge Infrastructure

Benchmarked Across Indian City Nodes & 4G Networks

International testing platforms measure speed from North America or Europe, giving distorted latency figures. GT Vitals measures directly from Indian peering exchanges and mobile carrier profiles.

Primary Node: AWS Mumbai (ap-south-1)
Standard Indian Mobile Emulation: Moto G (Snapdragon CPU) on 4G LTE (1.63 Mbps down / 768 Kbps up / 150ms round-trip latency)
View all test locations →
Editorial & Research

Latest Google Search & Performance Insights

Technical analysis of Google algorithm updates, Core Web Vitals changes, and e-commerce optimization strategies.

View All Articles →
Knowledge Base

Frequently Asked Questions

Everything you need to know about website speed, Core Web Vitals audits, and guaranteed optimization sprints.

How is GT Vitals different from GTmetrix or Google PageSpeed Insights?

GT Vitals is an independent diagnostic and performance engineering platform built specifically for Indian and global webmasters. Unlike standard automated tools that only output generic warnings, we benchmark using genuine Indian network infrastructure, translate technical metrics into financial conversion impact, and provide a full-service engineering sprint with a guaranteed 90+ mobile score.

Why does mobile performance matter significantly more than desktop?

Over 82% of all e-commerce and web traffic in India originates from mobile devices operating on variable 4G networks. Google evaluates search rankings exclusively using Mobile-First Indexing and real-user Chrome User Experience Report (CrUX) metrics. A desktop score of 95 is meaningless if your mobile score is 42.

What is the difference between INP and FID?

First Input Delay (FID) only measured the delay of the very first user click on a page. In March 2024, Google permanently replaced FID with Interaction to Next Paint (INP). INP measures the latency of every single interaction (clicks, taps, form submissions, accordion expansions) throughout the entire user visit. To pass INP, all interactions must respond in under 200 milliseconds.

How does poor Core Web Vitals affect my Google Ads CPC and ROAS?

Google Ads calculates your Quality Score based on Landing Page Experience. Slow loading pages with high layout shift receive lower Quality Scores (below 6/10), which forces you to bid significantly higher Cost Per Click (CPC) to achieve the same ad placement. Improving your page speed often reduces CPC by 15-25% while lifting checkout conversion rates.

Will optimizing my website break my existing design, plugins, or checkout tracking?

No. Our engineers use non-destructive refactoring. We optimize your existing assets, configure proper deferral hierarchies, and optimize caching layers on a staging environment before touching production. We thoroughly test cart workflows, payment gateways, and Meta/Google analytics tracking pixels to ensure 100% functionality remains intact.

How long does the 90+ Score Optimization Sprint take?

Our standard Business Sprint is completed within 48 to 72 business hours. Enterprise applications with complex multi-vendor marketplaces or custom headless architectures typically take 5 to 7 business days, including staging verification and live stress testing.

How does the 100% Money-Back Guarantee work?

When you book our Business or Enterprise Sprints, we agree upon a target mobile Lighthouse score (90+) and Core Web Vitals thresholds. If we cannot reach that performance benchmark after completing the sprint, you receive an immediate, no-questions-asked 100% refund.

Do I need to migrate to an expensive hosting provider to achieve 90+ score?

In over 85% of cases, no hosting migration is necessary. Most latency bottlenecks are caused by frontend render-blocking scripts, uncompressed media, and missing edge caching policies. By setting up proper CDN edge caching (such as Cloudflare with Tiered Cache) and database query optimization, we regularly achieve 90+ mobile scores on existing hosting plans.

Guaranteed Core Web Vitals Optimization

Stop Losing Conversions to Slow Mobile Load Times

Test your website speed now or schedule a 90+ score engineering sprint with our performance team. 100% money-back guarantee in 48-72 hours.

Get Free Advice
Senior Speed Engineer Online: