Which Website Errors Should You Check Before Upgrading Your Hosting Plan?

Repeated 503 errors, resource limit messages and timeouts during busy periods can indicate that a hosting account needs more capacity, particularly when its CPU, memory or concurrent request limits are being reached at the same time. Check the account’s usage history and error logs before deciding that an upgrade is the fix.

A 503 Service Unavailable response means the service cannot handle the request at that moment. A 504 Gateway Timeout means one server did not receive a timely response from another. Neither code proves that your hosting plan is too small. A slow database query, an external service or an application fault could produce a similar experience.

A 508 Resource Limit Reached page can be a stronger clue on systems that use CloudLinux resource controls. CloudLinux documents that its entry process limit can trigger this response when concurrent requests exceed the configured limit. The implementation can differ with LiteSpeed, so the host should interpret the account’s measurements rather than relying on the error page alone.

Look for a pattern across three sources:

• The error: Record the exact message, affected URL and time.
• The activity: Note whether it happened during a promotion, a bulk product import, a backup or an ordinary visit.
• The usage: Compare the time with CPU, memory and entry process data, alongside server and application logs. cPanel exposes these account usage measures where the host has enabled them. cPanel & WHM Documentation

If the same limit is repeatedly reached during legitimate traffic, more suitable hosting resources may help. First check whether an inefficient task is consuming them. Paying for extra capacity without finding the cause can leave the site vulnerable to the next traffic peak.

An upgrade may fix a 500, 503 or 504 error when evidence shows that the current account is running out of the resources needed to complete requests. It will not reliably fix errors caused by faulty code, incompatible plugins, failed database queries or a slow external service.

A 500 Internal Server Error is especially broad. On a WordPress site, it may appear after a plugin, theme or configuration change. WordPress’s troubleshooting guidance identifies plugin and theme conflicts among the possible causes of internal server errors. Moving the same faulty application to a larger plan may simply reproduce the fault there.

The business cost depends on where the error occurs. A brief failure on a rarely visited archive page is different from repeated failures on a booking form. A failed checkout can interrupt a sale; a broken enquiry form can lose a lead without anyone noticing until the expected messages stop arriving. Server availability can also affect search crawling: Google reports that network and DNS errors can quickly affect its ability to fetch pages, while repeated availability problems can limit crawling.

Use this decision rule: upgrade when measured demand exceeds suitable capacity; fix the underlying fault when the failure persists without a corresponding resource limit. Sometimes both actions are needed. A site can have inefficient code and a plan that no longer fits its normal traffic.

Compare the timing of the error with hosting usage, server logs and recent website changes. Errors that coincide with exhausted resources suggest a capacity issue; errors that begin after a plugin, theme or PHP change suggest an application issue. Confirm the cause before changing the plan.

Work through the following checks in order:

• Reproduce the failure. Test the exact page or action, such as submitting an enquiry, logging in or completing a test order. Record whether the error is constant or intermittent.
• Check recent changes. Review plugin and theme updates, code deployments, PHP version changes and new scheduled jobs. A clear start time is valuable evidence. If the failure began after an update, review how the WordPress update was prepared and tested before assuming the site needs more capacity.

• Read the logs. Ask your developer or host to match the failed request with the server and PHP error logs. WordPress also provides debugging tools, but its documentation recommends using them in a staging or local environment rather than leaving debugging enabled on a live site.
• Compare resource use at the same time. A CPU or memory limit reached at 10:04 is relevant to an error at 10:04. An account-wide monthly average is less useful.
• Check the wider route to the site. If visitors cannot reach the website at all, check how the domain resolves and investigate any network errors. If only one form fails, investigate that form and its integrations. A hosting upgrade will not correct a misdirected DNS record.

Include 403 and 404 errors in the review, but interpret them carefully. A 403 generally indicates that access was refused; a 404 indicates that the requested page was not found. Check permissions, security rules, links and redirects before attributing either to a lack of hosting capacity. Google advises checking affected URLs and their actual responses when investigating crawl errors.

Start with the functions that earn revenue or keep the business operating: checkout, bookings, contact forms, customer logins and the administration area. For each recurring fault, give your hosting provider the URL, time, error message and steps to reproduce it. That turns “the website is slow” into a support request an engineer can investigate. Clarify what web hosting support covers so the provider and your developer can agree who will investigate the server, website code and connected services.

Then ask what the proposed plan changes. More storage will not resolve a PHP memory limit if memory remains the same. NVMe storage can improve storage performance, but it cannot fix a faulty payment integration. Caching can reduce work for public pages, while dynamic actions such as checkout still need appropriate application and server capacity.

SmartHost publishes plans with NVMe storage, LiteSpeed and LSCache, and provides a route to technical support. The useful next step is to review the fault and the account’s resource history, then choose resources that address the measured constraint. Confirm the limits and features of the specific plan before ordering.

Take a current backup before changing code or moving the site. After any upgrade or migration, repeat the same tests that exposed the problem. Check that the site works for visitors, that forms and payments complete, and that search engines can reach important pages. Google provides specific guidance for checking a site after a change of hosting infrastructure.