Uptime

Uptime is how often your website is actually working. If your site is up and accessible 99.9% of the time, your uptime is 99.9%. The rest of the time, it's down, and anyone who tries to visit gets an error page instead of your business.

It's usually expressed as a percentage, and the differences between those percentages matter more than you'd think. 99.9% uptime sounds nearly perfect, but it still means about 8 hours and 45 minutes of downtime per year. Drop to 99% and you're looking at almost 4 full days offline.

Why It Matters for Your Business

When your website is down, you're invisible. People searching for your business find an error page. Potential customers move on to a competitor. If you're running ads, you're paying for clicks that land on a broken page.

For service businesses, downtime during peak hours is especially costly. If your website goes down on a Monday morning when people are searching for services, that's your most valuable traffic lost.

There's also the trust factor. Returning visitors who encounter a down website may wonder if your business is still open. Google's crawlers may also struggle to index your site if it's frequently unavailable, which can hurt your SEO over time.

The good news: with modern hosting, good uptime is not expensive or complicated. Most quality hosting providers deliver 99.9%+ uptime without any special effort on your part.

The Basics

Your hosting provider determines your uptime. The single biggest factor in your website's uptime is who hosts it. Cheap shared hosting tends to have more downtime because your site shares resources with hundreds of other sites. If one of those sites gets a traffic spike, everyone slows down or goes offline. Quality hosting providers invest in redundant infrastructure so one failure doesn't bring everything down.

Look for uptime guarantees. Most reputable hosting providers offer a Service Level Agreement (SLA) with an uptime guarantee, usually 99.9% or higher. This doesn't prevent downtime, but it means you may get credits or refunds if they miss their target. Platforms like Vercel, Netlify, and major cloud providers consistently deliver high uptime.

Monitoring tools alert you to problems. You can't fix downtime you don't know about. Free monitoring services like UptimeRobot check your site every few minutes and send you an alert (email or text) the moment it goes down. That way you can contact your hosting provider immediately instead of finding out from a customer.

CDNs improve uptime. A content delivery network doesn't just make your site faster. It provides redundancy. If your main server has issues, a CDN can often serve cached versions of your pages to visitors while you fix the problem. Cloudflare's free tier includes this benefit.

DNS uptime matters too. Your website can be running perfectly on its server, but if your DNS provider is down, nobody can find it. Make sure your DNS is hosted on a reliable service. This is an easy thing to overlook.

Scheduled maintenance is normal. Brief downtime for updates and maintenance is expected. Good providers schedule this during low-traffic hours (usually very late at night) and finish in minutes. This is different from unexpected outages, which are what your uptime percentage mainly reflects.

FAQ

What is a good uptime percentage?

For a small business website, 99.9% is the standard you should expect. That translates to less than 9 hours of downtime per year, most of which happens during scheduled maintenance windows when nobody's visiting anyway. If your hosting provider can't deliver at least 99.9%, it's time to look for a better one. Enterprise sites aim for 99.99% (about 52 minutes of downtime per year).

How do I check my website's uptime?

Sign up for a free monitoring tool like UptimeRobot or Better Stack (formerly Better Uptime). You enter your website URL and they'll check it every few minutes around the clock. They'll send you an alert when your site goes down and provide monthly reports showing your actual uptime percentage. It takes about 2 minutes to set up.

What should I do when my website goes down?

First, check if it's actually down for everyone or just you. Use a tool like "Down for Everyone or Just Me" (downforeveryoneorjustme.com). If it's down for everyone, contact your hosting provider immediately. Most have support channels for outage reports. While you wait, check their status page for known issues. If downtime happens frequently, that's a sign you need better hosting, not just a fix for today.