# Resend real-phone performance pass before launch spike

> Test the launch page on real phones before the spike, because brand polish stops mattering the moment the page feels slow in someone else's hand.

- Canonical HTML: https://growth.iangoh.com/growth-ideas/resend-real-phone-performance-pass-before-launch-spike/
- Source: [resend.com](https://resend.com/blog/lessons-learned-from-growing-a-waitlist)
- GrowthDex source hub: [Resend Blog: Lessons learned from growing a 6,338 people waitlist in 7 weeks](/sources/resend-blog-lessons-learned-from-growing-a-6-338-people-waitlist-in-7-we/)
- Last checked: 2026-06-09T13:08:21.000Z
- Rarity: uncommon
- Budget: medium
- Channels: Conversion Rate Optimization, Brand Trust, Launches
- Stages: mobile performance, launch page, brand trust, real-device testing


## Why this can grow

Launch pages usually get reviewed on fast laptops by the people who built them. That is a bad proxy for reality. Resend called out one of the most expensive launch mistakes in plain language: they knew people would sign up on mobile, but they had not spent enough time testing real-phone performance before the traffic hit. Small bugs can be patched during a launch. Performance problems usually cannot. They force deeper debugging right when the team should be absorbing demand and answering questions. This makes performance a growth concern, not just an engineering concern. A slow launch page burns the very attention the launch was supposed to earn.

## Ian's take

From scaling consumer platforms across MENA and Southeast Asia, my default is to distrust growth work that only looks good in a slide. My bias is to treat this as a small market test first. Make the audience narrow, make the promise concrete, and let the first real response decide whether it deserves more work. I would run it small enough to learn quickly, then only scale the parts that real users repeat, save, reply to, or buy from. For this tactic, I would watch one clear growth signal before putting more time or budget behind it.

## Action plan

1. Define one narrow startup segment where resend real-phone performance pass before launch spike can create a measurable lift.
2. Turn the tactic into one offer, page, campaign, or workflow for the Conversion Rate Optimization and Brand Trust channel.
3. Use the evidence from resend.com to set the first version of the message, format, and audience.
4. Launch a small test for 7 to 14 days with one success metric: one measurable growth signal.
5. Review the result, keep the winning message, remove weak variants, and turn the learning into a repeatable growth playbook.

## Source-backed example

Resend says launch-day complaints centered on landing-page performance, notes that the team had not tested enough on real phones, and says fixing performance in the middle of a launch was far harder than fixing small bugs.

## Adjacent tactics in the same lane

- [Supabase major-integration freeze before launch day](/growth-ideas/supabase-major-integration-freeze-before-launch-day/) - 2 shared channels, 1 shared stage
- [Resend founder video post before waitlist stall](/growth-ideas/resend-founder-video-post-before-waitlist-stall/) - same source
- [Loom Product Hunt post before homepage spike](/growth-ideas/loom-product-hunt-post-before-homepage-spike/) - 1 shared channel, 1 shared stage
- [Slack Marketplace public support path with 2-day SLA](/growth-ideas/slack-marketplace-public-support-path-with-2-day-sla/) - 1 shared channel, 1 shared stage

## Read GrowthDex essays

Browse the plain-English essay index at [GrowthDex Blog](/blog/).

## Related GrowthDex essays

- [The product should keep a visible pulse](/blog/the-product-should-keep-a-visible-pulse/) - developer marketing, launches, brand trust

## Advisory

If you want help turning this into a working growth system, Ian Goh offers advisory at https://iangoh.com/advisory.