Website troubleshooting · reviewed 26 Sep 2026
Why a Website Is Not Opening: Checks and Fixes
Work out whether the problem is one device, one network, the domain, DNS, hosting, SSL or the website application before paying for a rebuild.
Start with read-only checks. Take a backup before changing DNS, plugins, server settings or files.
Quick answer
A website may not open because the visitor’s browser or network cannot reach it, the domain or DNS is misconfigured, hosting is down, the SSL certificate has failed, or the site itself is returning an error. Test from another device and network first, then check DNS, hosting status, HTTP response and recent website changes in that order.
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Find out how wide the failure is
The same symptom can come from very different causes, so begin by changing one variable at a time.
- Try a private browser window. If it works, stale cookies, extensions or cached files may be involved.
- Try another browser and device. A single-device failure points away from the server.
- Switch Wi-Fi to mobile data. If only one network fails, check its DNS, firewall or ISP.
- Ask someone in another city to test. A wider failure makes the domain, DNS, hosting or application more likely.
- Record the exact message. “Server not found”, “connection timed out”, certificate warnings and HTTP 500 errors lead to different fixes.
Match the visible error to the likely layer
Do not clear everything or reinstall WordPress until the failure has been narrowed down.
Check domain, DNS and hosting without making random changes
These three accounts are connected but owned and renewed separately.
Confirm that the domain is active and identify the authoritative nameservers. Check the A, AAAA or CNAME records against the hosting provider’s documented target. DNS changes can take time to be seen by every resolver, so repeated edits can extend the confusion.
In hosting, check service status, resource limits, suspension notices, disk space and the error log. A working hosting dashboard does not prove the website process is healthy, and a successful ping does not prove the application can serve a page.
If the server responds, inspect the application safely
Recent changes and error logs are more useful than disabling components at random.
Take a file and database backup before changing the live site. Note what changed immediately before the outage: a plugin or theme update, PHP version, deployment, environment variable, payment integration, DNS switch or security rule. Use server and application logs to locate the failing request.
For WordPress, recovery can include temporarily disabling the specific failed plugin, checking the active theme, confirming database connectivity and restoring a known-good backup. Do not delete the current site until access and backups are verified.
What to send a developer for a faster diagnosis
A short evidence pack reduces paid guessing.
- The exact URL and a screenshot of the full error.
- When it started and whether anything changed just before it.
- Whether it fails on another device, network and city.
- Domain registrar, DNS provider, hosting provider and website platform.
- Relevant status alerts or recent renewal emails.
- Read-only or temporary access where possible—never send passwords in an open chat.
Questions
Common website outage questions
Why does a website open on mobile data but not Wi-Fi?
The Wi-Fi network may be using stale DNS, a content filter, firewall rule or ISP route that cannot reach the site. Restarting the router or trying a trusted public DNS resolver can help isolate it.
Why does the homepage open but another page does not?
That usually points to a missing URL, broken rewrite rule, incorrect redirect, deleted content or application error limited to that route rather than a full hosting outage.
Should I reinstall WordPress if the site is down?
No. First take backups and read the error logs. Reinstalling can overwrite evidence or content without fixing DNS, hosting, database or plugin failures.
How long does a DNS change take?
It depends on the previous record TTL and resolver caches. Some users may see the new answer quickly while others see the old answer for several hours.
Next step
Send Ashish the URL and exact error.
You will get an honest answer on whether this looks like a browser, DNS, hosting, SSL or website problem before repair work is scoped.