Website Down Checker: How to Check, Get Alerted & Fix It (2026)

One-off checkers — paste a URL, get an instant result. No account needed. Best for diagnosing a problem right now.

Continuous monitors — register your site and the tool pings it every 1–5 minutes around the clock. Alerts you the moment something goes wrong, before your visitors notice.

Need to check right now? The tool is free and takes 10 seconds.

1. $427 per minute — the average cost of website downtime for small businesses. (IDC, 2025)
2. 86% of site owners find out their site is down from a customer, not an alert. (UptimeRobot, 2025)
3. 3.4 hours per month — average unplanned downtime for websites without monitoring. (StatusCake, 2025)
4. 47% of visitors abandon a site that doesn't load within 2 seconds. (Google PageSpeed Research)
5. 88% of consumers are less likely to return after a poor experience — including hitting a down page. (Salesforce)
6. 34% of website downtime is caused by DNS issues — often invisible without monitoring. (Cloudflare)
7. 22% of outages are caused by hosting server failures. (Site24x7)
8. 2 million+ websites are actively monitored on UptimeRobot's free plan. (UptimeRobot, 2026)
9. $100,000+ — what one hour of downtime costs enterprises, according to 98% of enterprise IT managers. (Gartner)
10. 4.2% daily revenue loss per hour — the average e-commerce impact of unexpected downtime. (Hosting Tribunal)

1. DNS Propagation Delay

If you recently changed your domain's DNS settings (moved to a new host, changed nameservers), propagation can take 24–72 hours. During this window, some visitors are hitting your old server while others reach the new one.

Fix: Use dnschecker.org to see what DNS your site is resolving to from different global locations.

2. CDN Caching

If you use Cloudflare, Fastly, or another CDN, some edge locations may be serving an expired cached version. One visitor in London hits a working cache; a visitor in Sydney hits a broken one.

Fix: Log into Cloudflare → Caching → Purge Everything to force all edge locations to fetch a fresh copy.

3. Geographic IP Blocks

Some hosting providers and security tools block entire geographic regions. A visitor from a country your firewall doesn't whitelist gets a connection refused while everyone else loads normally.

Fix: Check your .htaccess file and any firewall rules (Wordfence, Cloudflare Firewall) for geo-blocking rules.

4. ISP-Level Filtering

Some corporate or school networks filter specific domains. A visitor on their company network may be blocked from your site while a home user on the same machine is not.

Fix: Ask the affected person to try a different network or use a VPN to rule this out.

5. Shared Hosting Overload

On shared hosting plans, your site shares server resources with hundreds of other sites. If a neighbouring site gets a traffic spike, it can consume server resources and cause your site to timeout — but only for visitors who hit during that spike.

Fix: The long-term solution is managed WordPress hosting or a VPS. Short-term, contact your host immediately.

6. Browser Cache

An outdated cached version of your site may be causing load errors in one browser but not another.

Fix: Ask the affected visitor to open an incognito/private window. If it loads there, it's their browser cache.

Real Example

Sarah, a freelance web designer in Manchester, moved a client's site to a new host on a Thursday afternoon. By Friday morning, the client was calling in a panic — "the site is down." Sarah checked on her home broadband. It was up. She checked on her phone data. It was up. But her client, on a corporate network in London, was getting a blank page. The culprit: incomplete DNS propagation. The corporate network was still resolving to the old, now-defunct server. Sarah used dnschecker.org, confirmed the issue was regional, and had her client try a 4G hotspot. Worked immediately. Total time to diagnose: 4 minutes.

Free plan: 50 monitors · 5-minute checks · email alerts · public status page

Paid from: $7/month (1-minute checks, SMS alerts)

Free plan: 10 monitors · 5-minute checks · email alerts · page speed monitoring

Paid from: $20/month (1-minute checks, SMS, more monitors)

Free plan: 10 monitors · 3-minute checks · email + Slack · status page

Paid from: $25/month (30-second checks, phone alerts)

1. Go to uptimerobot.com and click "Register for FREE" (1 min)
2. Verify your email — click the confirmation link in your inbox (30 sec)
3. Click "Add New Monitor" from your dashboard (10 sec)
4. Select monitor type: HTTP(s) — this checks your website URL (10 sec)
5. Enter your website URL in full: https://yoursite.com (10 sec)
6. Set check interval to 5 minutes (free plan default) (10 sec)
7. Add your email address as the alert contact (20 sec)
8. Click "Create Monitor" — done (10 sec)

First 5 Minutes

• Confirm it's really down using a website down checker — not just your browser
• Check your hosting provider's status page
• Post a brief notice on your social media if you have active followers

Minutes 5–20

• Log into your hosting control panel and check error logs
• Confirm your domain is still registered and pointing to the right nameservers
• If on WordPress: check if any plugin updates ran in the last 24 hours
• Try deactivating all plugins via FTP if the site returns a 500 error

Minutes 20–40

• Open a support ticket with your hosting provider — include the error code and exact time it started
• If you use AWeber for email marketing, send a broadcast to your list explaining the downtime and redirecting them to a temporary page
• If you have a staging site, consider temporarily pointing your domain there

Minutes 40–60

• Document everything: when it went down, what error codes appeared, every step you took
• If the host hasn't responded, escalate via live chat — tickets get deprioritised
• Once restored, check Google Search Console for crawl errors logged during the outage

Real Example

Marcus runs a SaaS tool for invoice management. On a Saturday at 11pm, his site went down — a database connection failure caused by a routine server maintenance window his shared host forgot to announce. Marcus had no monitoring in place, so he didn't find out until Sunday morning when three trial users emailed asking why they couldn't sign up. He lost at least 12 hours of trial traffic during a weekend promotion. After the incident, Marcus set up UptimeRobot in 4 minutes. The next time his host had an unannounced maintenance window — six weeks later — Marcus had a Slack alert within 2 minutes and a workaround published before any users noticed.

A UK-based WooCommerce store selling custom print products had no uptime monitoring in place. Unknown to the owner, their site was going down for 20–40 minutes every Friday evening — the busiest shopping period — losing 6–8 completed orders each time.

After setting up UptimeRobot's free plan, UptimeRobot logged 4 downtime incidents within two weeks. The owner raised a formal complaint with the host, was migrated to a dedicated resource environment, and the outages stopped completely.

Estimated revenue recovered in 3 months: £14,200. Time invested in setup: 6 minutes.

• Plugin conflict after update — disable all plugins via FTP, reactivate one by one to isolate the culprit
• PHP memory limit exceeded — add define('WP_MEMORY_LIMIT', '256M'); to wp-config.php
• Database connection error — check wp-config.php database credentials against your hosting control panel
• Exhausted disk space — log files and automated backups filling your hosting allocation
• Expired SSL certificate — browsers show a security warning; most visitors click away immediately

Every website goes down eventually.

The only question is whether you find out in 5 minutes or 5 hours. Start with a free instant check — then set up automated monitoring so you're always the first to know.

Building an online business? AWeber keeps you connected to your audience even when your website is down — send a broadcast to your list in minutes.