This Site Can't Be Reached: Decode the Error and Fix It

"This site can't be reached" is the headline Chrome and Edge show for many different network failures. The headline tells you nothing; the sentence under it and the ERR_ code at the bottom tell you everything. Firefox's equivalents are "Hmm. We're having trouble finding that site" and "Unable to connect," and Safari shows "Safari Can't Connect to the Server" or "Safari Can't Find the Server."

Use this page as a decision table. Read the line under the headline, find it below, and go to the matching page.

Decode the sub-message

If the headline is "Your connection is not private," the cause is a certificate; go to Your connection is not private.

Step 1: Is it just you?

Spend two minutes on this before anything else. Open a different site, then check the target from outside your network with the वेबसाइट हेल्थ चेक or Down From Where. The outcomes:

• Other sites also fail: the problem is your device or network. Start with the router, then DNS.
• Only this site fails for you, but outside tools load it: something specific to your network, cache, DNS answer or IP address.
• Outside tools also fail: the site or its hosting has a problem. See website down for everyone or just me.

If you are a visitor

Do these in order and stop when it works.

1. Reload and check for typos. Remove www or add it, and try the other scheme if you know the site supports it.
2. Restart the router. Wait for the lights to settle.
3. Flush DNS. ipconfig /flushdns on Windows, sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder on macOS, resolvectl flush-caches on systemd Linux.
4. Check proxy and VPN. Disable them and retry; leftover proxy settings are a common cause.
5. Try another network or device. A phone hotspot helps separate a home or office problem from a site problem.
6. Pause security software with web scanning for a test.
7. Run Chrome's own diagnostic. The page offers "Running Connectivity Diagnostics" on Windows; use it for local adapter problems.
8. Wait. If outside tools say the site is down, nothing on your side will help.

If you own the site

Treat a visitor's report as a symptom, and work from the outside in.

1. Reproduce from a neutral location with curl -v https://example.com/ or the HTTP स्टेटस चेकर. Note which stage fails: DNS, connect, TLS or HTTP.
2. DNS: check A and AAAA records at several resolvers with the DNS चेकर. Missing or wrong records and expired domains explain most "IP address could not be found" reports.
3. Port: confirm 80 and 443 are open with the पोर्ट चेकर. A stopped web server gives "refused," while a firewall that drops packets gives a timeout.
4. Server health: if the machine is up but the site is not, follow why is my website down. Check disk, memory, the web server and the application process, using commands such as systemctl status nginx and df -h.
5. Application layer errors appear as HTTP status codes, not as "can't be reached"; see fix 502, 503 और 504.
6. CDN or security layer: a Cloudflare page with a numbered error is a different failure; see Cloudflare error 1016 और Cloudflare error 1020.
7. Regional problems: if it fails only from some countries or ISPs, compare vantage points with Down From Where and ask your host about routing.

Communicate while you fix it. A status page lets visitors confirm it is not their device, and our status page guide explains what to publish.

Confirm the fix

1. Run the वेबसाइट हेल्थ चेक and expect DNS, TCP, TLS and HTTP to pass.
2. Load the site from a phone on mobile data and from a second location with Down From Where.
3. Put an uptime monitor on the site so you hear about the next failure before visitors do.

अगले कदम

• Read ERR_CONNECTION_REFUSED vs timed out vs reset.
• सीखें how often to monitor a website.
• Understand DNS in DNS explained for website owners.
• Reduce noise with how to reduce false alerts.

सामान्य प्रश्न

Does "This site can't be reached" mean the site is down?

Not always. It can come from your own network, DNS, VPN or proxy. Check from another network or with an outside tool to find out.

What is the difference between this and a 503 error?

A 503 is an HTTP response from a server that is reachable but unavailable. "Can't be reached" means the browser never completed a connection to get any HTTP response.

Why does it work on my phone but not my laptop?

Different networks, DNS caches and proxy settings. Flush DNS on the laptop, turn off VPN or proxy, and test on the same Wi-Fi to isolate it.

Can I make my own site show something friendlier?

Not for the browser's network errors, since there is no server response to customize. You can reduce incidents by monitoring and by keeping DNS and hosting healthy.

यह पेज सामान्य जानकारी है, जिसे हमारी संपादकीय टीम ने लिखा है और दस्तावेज़ीकरण बदलने पर अपडेट किया जाता है। सर्वर और प्रदाता अलग-अलग होते हैं, इसलिए बदलाव पहले सुरक्षित तरीके से जाँचें। देखें: संपादकीय नीति और अस्वीकरण.