You Can't Check 24/7
Your website can go down at 3 AM on a Sunday. Unless you're checking constantly, you won't know until someone complains - or until you lose customers.
Is My Website Down Right Now? Free Instant Check
Stop manually checking if your website is down. AlertsDown monitors your site 24/7 and alerts you instantly when it becomes unreachable. Know about downtime before your customers do.
Why Automated Monitoring?
- 24/7 coverage - we check while you sleep
- Instant alerts - know in seconds, not hours
- Multiple channels - Email, Chrome extension, SMS, Signal, Telegram, WhatsApp
- Historical data - track uptime over time
- No manual checks - set it and forget it
The Problem with Manual Checking
By the Time You Know, It's Too Late
If you find out your site is down by visiting it yourself, how long was it down before that? Minutes? Hours? Automated monitoring catches issues immediately.
Regional Issues Go Unnoticed
Your site can fail between manual visits. AlertsDown checks it on a schedule and records each result so outages do not depend on someone noticing first.
How AlertsDown Website Monitoring Works
AlertsDown sends HTTP requests to your website at regular intervals - as frequently as every minute. We check that your server responds and returns the expected status code.
When your site doesn't respond or returns an error, we immediately send you an alert via your preferred channel. You'll also get notified when your site comes back online, so you know the issue is resolved.
Who Needs Website Down Monitoring?
Online Store Owners
Every minute your store is down, you're losing sales. Automated monitoring ensures you can react quickly and minimize revenue loss.
SaaS Founders
Your customers expect your service to be available. Downtime erodes trust and triggers support tickets. Know about issues before your users do.
Bloggers & Content Creators
Downtime hurts your SEO rankings and ad revenue. Make sure your content is always accessible to readers and search engines.
Agencies Managing Client Sites
Monitor all your client websites from one dashboard. Be proactive about issues instead of waiting for angry client calls.
Related resources
Prevent repeat incidents with website monitoring and website-down alerts on WhatsApp.
Learn downtime response tactics in the AlertsDown blog.
View plan options on the pricing page.
Never Wonder "Is My Site Down?" Again
Set up monitoring in minutes. Free Builders tracks up to 10 URLs with email and Chrome extension alerts; Indie adds Signal, SMS, Telegram, and webhooks, while Saas also adds WhatsApp.
Website Down Checker FAQ
How do I check if my website is down?
You can manually visit your website, but this only tells you if it's working right now. For continuous monitoring, use AlertsDown - we check your site automatically and alert you immediately when it goes down.
Why is my website down?
Common causes include server overload, hosting provider issues, expired domains, SSL certificate problems, DNS misconfigurations, or code errors. AlertsDown helps you detect downtime quickly so you can investigate the cause.
How often does AlertsDown check my website?
Check frequency depends on your plan. The free plan checks every 5 minutes, while paid plans can check as frequently as every minute. More frequent checks mean faster detection of issues.
What alerts do I get when my site goes down?
Free Builders includes email and Chrome extension alerts. Indie Builders adds Signal, SMS, Telegram, and webhooks. Saas Builders also includes WhatsApp. The channels you can select are enforced by your plan.
Is there a free website monitoring tool?
Yes. Free Builders monitors up to 10 URLs with 5-minute checks, email alerts, and Chrome extension alerts. Indie adds 1-minute checks, Signal, SMS, Telegram, and webhooks; Saas also includes WhatsApp.