Question 1

How to use is-up in a Node.js app?

Accepted Answer

Install via 'npm install is-up', import the module, and call it with a URL string. It returns a promise that resolves to true if the site is up, false if down.

Question 2

What are the rate limits for is-up?

Accepted Answer

The library depends on isitup.org's API, which may impose its own rate limits. For high-volume usage, check isitup.org's terms to avoid restrictions.

Question 3

Can is-up check websites behind a login?

Accepted Answer

No, it only checks public website availability via the isitup.org API, so it cannot handle authentication or private sites.

Question 4

Is is-up better than using Node.js's http module for uptime checks?

Accepted Answer

is-up simplifies checks by offloading to an external API, but for more control, customization, or internal sites, the http module might be preferable.

Question 5

Does is-up support checking multiple URLs at once?

Accepted Answer

No, it checks one URL at a time. You need to loop through URLs or use Promise.all for batch operations.

Question 6

How accurate is is-up for production monitoring?

Accepted Answer

It relies on isitup.org's reliability, which is good for general use, but may not capture all downtime or be real-time enough for critical monitoring.

is-up

What is is-up?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions