---
title: "How Lodash Serves 400K Monthly Visitors with Offline-First Performance on Netlify"
description: "Lodash is one of the most popular JS libraries in the world with more than 2 billion downloads.  It accounts for 4% of npm’s weekly download traffic and it’s directly depended upon by more than 27,000 packages and indirectly depended upon by 100,000 packages (30% of npm packages).  It’s used by more than Underscore, React, Ember & Angular 2. Combined.  Read more about it and why John Dalton & Co. chose Netlify for Lodash.com."
source: "https://www.netlify.com/customers/lodash/"
last_updated: "2026-07-28T06:44:44.000Z"
---
Customer story

![Lodash](https://cdn.sanity.io/images/o0o2tn5x/marketing/a074dcf8f5df9165457fb73db71190d7cdd20c1d-2500x2500.svg)

# How Lodash Serves 400K Monthly Visitors with Offline-First Performance on Netlify

Lodash is one of the most popular JS libraries in the world with more than 2 billion downloads. It accounts for 4% of npm’s weekly download traffic and it’s directly depended upon by more than 27,000 packages and indirectly depended upon by 100,000 packages (30% of npm packages). It’s used by more than Underscore, React, Ember & Angular 2. Combined. Read more about it and why John Dalton & Co. chose Netlify for Lodash.com.

## Key stats & highlights

-   30%
    
    of all npm packages depend on Lodash
    
-   4%
    
    of npm's weekly download traffic
    
-   400K
    
    monthly page views
    

## What is it?

Lodash is JavaScript utility library. After 4 years of having a PHP based website it was time for a redesign. I wanted the site to be open source & run on a gh-pages friendly stack. Netlify took things to the next level. Lodash.com uses a service worker to download the entire site for offline use on your first visit. It also uses resource hints (prefetch, preconnect, preload, & prerender) for speedier page loads. \[The site gets more than 400,000 page views a month.\] Resource hints that I compiled with the Netlify build cmd into a headers file. The build cmd invokes a Gulp task to generate app icons, headers, redirects, compile JS, & minify resources. I use custom headers to enforce security headers like CSP too.

One of the cool bits is that we’re actually compiling in the \_redirects into the service worker so that redirects work even when offline. It also makes query strings pass through for redirects too.

## Why Netlify?

I originally chose Netlify because of its HTTPS support for custom domains. After trying it I quickly found that it offered a freedom of build process, jekyll plugins, redirects, & header configs that ended up being critical to lodash.com.

## Favorite Feature?

I love how painless everything is. Setting up HTTPS, redirects, headers, GeoIP, build processes were all super simple. And if I had a question it was answered fast. (You all rock. I’m spreading the word.)

Netlify Features Used

Tools & Frameworks Used

Redirect Rules

Grunt

Rewrite Rules

Babel

Proxy Rules

Jekyll

Custom HTTP Headers

React

Cached Dependencies

Sass

Git Integration

Outbound Webhooks

Outbound Integrations

Continuous Delivery

Rollbacks

Web UI

Deploy previews

HTTPS