---
title: "page time to interactive – directional benchmark"
summary: "Healthy time-to-interactive for indie SaaS marketing pages is under 3.5 seconds on mobile (mid-range device, 4G connection). Beyond 5 seconds, conversion rate drops 5 to 15% per additional second. Google's Core Web Vitals threshold (Interaction to Next Paint under 200ms) is the SEO floor, not the conversion ceiling."
canonical: https://unlocksaas.com/benchmarks/page-time-to-interactive
updated: 2026-05-19
publisher: "Unlock SaaS"
author: "Maryan"
license: All rights reserved. Quotation with attribution permitted.
---

# page time to interactive – directional benchmark

> Healthy time-to-interactive for indie SaaS marketing pages is under 3.5 seconds on mobile (mid-range device, 4G connection). Beyond 5 seconds, conversion rate drops 5 to 15% per additional second. Google's Core Web Vitals threshold (Interaction to Next Paint under 200ms) is the SEO floor, not the conversion ceiling.

## Bands

### Underperforming: Over 5s mobile

Page is heavy with third-party scripts (analytics, chat widgets, fonts), unoptimized images, or render-blocking JavaScript. Each fix typically cuts 0.3 to 1.0 second.

### Typical range: 1.5s to 3.5s mobile

Healthy load time. Standard Next.js / Vercel hosted marketing pages sit here with minimal optimization. SEO floor is met.

### Outperforming: Under 1.5s mobile

Static-first architecture, image optimization, no third-party JS. Conversion benefits are real but diminishing under 2 seconds.

## What this metric is influenced by (ordered by magnitude)

- Third-party JavaScript (the biggest performance cost)
- Image format and size (next-gen formats, proper sizing)
- Font loading strategy (system fonts > preloaded > async)
- Render-blocking resources
- Hosting and CDN configuration

## Common founder misreadings

- Optimizing for desktop when mobile is the bottleneck. Most indie SaaS traffic is 60 to 80% mobile.
- Chasing perfect Lighthouse scores. The score doesn't directly correlate with conversion; real time-to-interactive does.
- Adding third-party tools (analytics, chat, A/B test) without measuring the performance cost.

## Source

Range based on Google's Core Web Vitals benchmarks, web.dev published case studies, and observed indie SaaS marketing site performance. Mobile-first measurement.

## FAQ

### Does page speed affect SEO?

Yes, marginally. Google's Core Web Vitals (LCP, INP, CLS) factor into rankings. Most indie SaaS see SEO impact at the margins; the bigger reason to optimize is direct conversion rate.

### Is Next.js fast enough out of the box?

Yes for marketing pages. Static generation (or App Router server components) on Vercel sits under 2s mobile time-to-interactive without any optimization work. The performance debt accumulates from added third-party scripts and unoptimized images.

### Should I remove my analytics tools to improve speed?

No. PostHog, GA4, and similar tools cost 100 to 300ms on first paint, which is acceptable. Remove only the duplicated tracking (most sites have 3 to 5 redundant analytics tools loaded simultaneously).

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Canonical URL: https://unlocksaas.com/benchmarks/page-time-to-interactive
Publisher: Unlock SaaS (https://unlocksaas.com)
Contact: maryan@unlocksaas.com