Best practices for website uptime and reliability
A dependable website needs checks that reflect what customers do, alerts that reach a responsible person, controlled updates and a recovery plan you have rehearsed. An uptime percentage alone cannot tell you whether a visitor can submit an enquiry, book an appointment or complete an order.
Start with the functions your business depends on. Record who maintains them, how failures are detected and what happens next. This guide turns those decisions into a practical routine for a small business website.
1. Define what “available” means for your website
Website uptime measures availability over a stated period and under stated rules. A time-based calculation is: available time divided by total observed time, multiplied by 100. A monitor that checks periodically samples availability; it may miss an interruption between checks. A request-based availability measure divides successful requests by all requests included in the measurement, then multiplies by 100. Keep the method consistent when comparing reports.
What makes a website reliable?
Reliability includes whether important functions work when people need them. The homepage may return a successful HTTP response while a booking form fails or a payment integration times out. Check a useful result, such as the expected page content or a safely simulated journey, alongside basic reachability.
Why this matters to a small business
List your three most important customer tasks and the consequences of interruption. A brochure site and a busy shop have different recovery needs. Prioritize the functions that would otherwise create missed enquiries, unfulfilled orders or urgent support work. Treat estimates of lost business as planning assumptions, not measured losses.
2. Set realistic availability and recovery targets
Separate what you measure, the target you set and what a provider contract covers. Google’s service level objectives guidance explains these distinctions. A hosting service-level agreement may define particular infrastructure, exclusions, maintenance windows and remedies. Read those terms before treating a headline percentage as a promise about every website function.
For illustration, a 30-day month contains 43,200 minutes. Under a simple time-based calculation with no excluded periods, these percentages correspond to the following aggregate downtime:
| Availability | Downtime across 30 days |
|---|---|
| 99% | 7 hours 12 minutes |
| 99.9% | 43 minutes 12 seconds |
| 99.95% | 21 minutes 36 seconds |
| 99.99% | About 4 minutes 19 seconds |
These are calculations, not a provider commitment or a recommended allowance. They do not show whether interruptions happened during peak trading or quiet hours. Record duration, affected functions and customer impact as well as the monthly percentage.
Also decide how long you can operate without the website and how much recent data you can afford to lose. A nightly backup may suit an infrequently edited page but leave a large gap for a site receiving orders throughout the day. Match recovery arrangements to those needs and confirm them through a rehearsal.
3. Monitor the customer experience and its dependencies
Use an external check that does not depend entirely on the server it watches. Choose relevant locations and URLs, then define what a successful check means. Google’s monitoring guidance highlights that HTTP 200 can still contain the wrong result. A green homepage check is only one piece of evidence.
| Check | What it can reveal | What still needs checking |
|---|---|---|
| HTTPS request and expected content | Unreachable pages, failed responses or missing page content | Whether a complete customer task works |
| Controlled journey test | Problems with a form, login or booking sequence | Safe test accounts, expected outcomes and third-party limits |
| Response timing | Slow responses or changes from normal behavior | Actual browser experience and the cause of the slowdown |
| DNS and certificate checks | Resolution problems or approaching certificate expiry | Renewal ownership, account access and correct configuration |
| Application and hosting metrics | Errors or pressure on storage, memory and other resources | Whether customers are affected and who can resolve the cause |
Keep journey tests within an agreed test environment or approved production procedure. Prevent real charges, customer messages and unwanted bookings. A crawl that finds broken links is useful, but it does not establish that a payment or form submission succeeded. Check which capabilities your chosen monitoring plan actually supports.
Analytics reports can help explain traffic changes, but they are not a substitute for availability checks. If a page or tracking script never loads, analytics may not show the failed visit. Combine customer-facing signals with diagnostic information from your host or developer.
4. Give every important alert an owner
Agree who receives alerts, who can investigate and who covers absence or out-of-hours incidents. Keep the contact route accessible if the website or its usual email system is unavailable. Test the notification route during setup; an address saved in a dashboard is not evidence that someone will see the message.
Include the affected URL, observed failure, timestamp and a short response checklist. Use repeated checks or additional locations where supported to help distinguish a single failed probe from a wider issue. Balance confirmation against delay: waiting too long to confirm a critical failure also has a cost.
Reserve urgent notifications for conditions needing prompt action. Route routine capacity trends and certificate reminders into planned work with deadlines. Review noisy alerts and failed deliveries. Record the time an incident was noticed, acknowledged and resolved so you can identify which part of the response needs improvement.
5. Reduce failures from changes, load and dependencies
Keep a small inventory of the host, domain registrar, DNS provider, certificate process, application and essential external integrations. Record account owners and renewal dates. Check available storage and resource limits before campaigns or large imports; changing plans without understanding the bottleneck may not solve the problem.
Use a repeatable update process: prepare a recoverable copy, test important functions in staging, schedule the change, identify a rollback route and check the live result. Make smaller changes where practical so failures are easier to isolate. Google’s release guidance explains the value of observing changes and limiting exposure. A successful staging test does not guarantee identical production behavior.
Caching and a content delivery network can reduce work at the origin server. Depending on configuration, cached content may remain available during an origin problem; CloudFront’s error-handling documentation provides one example. That does not make uncached logins, stock checks or payments work. Exclude personalized and transaction data from inappropriate caching, and test cache changes with your developer.
For resource and maintenance decisions, use our hosting selection guide. Keep access controls and updates in the wider website security checklist.
6. Back up the complete site and rehearse recovery
For WordPress, recovery normally needs both website files and the database. The WordPress backup handbook explains why these belong together. Confirm what is included, how often copies run, how long versions are retained and who can retrieve them if the hosting account is unavailable.
InterProWebHost’s current Website Backup service uses CodeGuard for offsite files and compatible database backups, with daily, weekly or monthly scheduling and self-service file or site restoration. Select a schedule and capacity appropriate to your website. Check retention and recovery requirements for your actual setup rather than assuming a purchased plan meets every need.
Rehearse restoration to a separate environment, measure the work involved and test the functions that matter. Keep the procedure and necessary access available to the responsible person. A “backup complete” message does not establish that the restored website will meet your recovery target.
Before restoring an older database over a live site, account for newer orders, submissions and content. Decide how these will be preserved or reconciled. If compromise is suspected, investigate the cause and verify a suitable recovery point before returning the site to service.
7. Start with monitoring coverage you can act on
The current InterProWebHost Website Monitoring service covers availability, response timing, SSL, DNS, ports and important page-content signals. Lite checks one website every ten minutes with email alerts and 24 hours of history. Paid plans offer 60-second checks, multiple alert channels and 30 days of history. Recheck the service page for current plan scope before choosing.
Those intervals describe checks, not a guaranteed time to detect, deliver an alert or repair a fault. Full-site crawls inspect links and assets; confirm separately whether any required transaction testing is supported. Monitoring reports problems so a responsible person can respond. It does not automatically repair the website or replace backups.
Start by selecting a critical page, an expected result and the person who will act on a failure. Then add coverage for the rest of the customer journey. Validate the alert route and agree escalation before relying on the dashboard.
8. Respond to an outage and learn from it
Keep a short incident checklist available outside the affected website:
- Confirm the impact. Check the reported function and compare another network or monitoring location. Record what is known without assuming the host is the cause.
- Assign the response. Contact the responsible host, developer or integration provider with timestamps, affected URLs and relevant errors. Keep credentials and customer data out of public updates.
- Choose a controlled recovery action. Review recent changes, identify a supported rollback or repair, and consider newer data before restoring a backup. Avoid several untracked changes at once.
- Communicate clearly. Use an independent status or support channel where available. State affected functions and the next update time; do not invent a repair deadline.
- Verify recovery. Recheck customer tasks, notifications and integrations. Watch for recurrence, then document the timeline and give each follow-up action an owner.
A useful review produces a concrete improvement: a missing check, a corrected renewal contact, a safer release step or a recovery procedure someone can follow. Start with the repeated causes of disruption before buying more infrastructure.
Frequently asked questions
Does a 99.9% hosting SLA mean my whole website works 99.9% of the time?
Not necessarily. Coverage depends on the agreement’s measurement method, included services, exclusions and remedies. Application failures and external integrations may fall outside that scope. Measure important customer functions separately.
Is checking the homepage enough?
It is a useful starting point. It does not verify forms, login, bookings or checkout. Add expected-content checks and controlled journey tests according to the functions your business needs.
How often should I check my website?
Choose an interval that fits the impact of a failure and your ability to respond. Shorter intervals may reduce the sampling gap, but detection also depends on thresholds, confirmation checks and alert delivery.
Does monitoring fix an outage automatically?
InterProWebHost Website Monitoring detects and reports problems. Someone still needs to investigate and carry out an appropriate response. Agree maintenance and incident-response responsibilities separately.
Will a CDN keep checkout working if my server goes down?
Do not assume so. Cached public pages may remain accessible while dynamic functions depend on the origin server or other services. Test the failure behavior of your actual architecture.
How do I know whether my backups are good enough?
Confirm the required data is included, check version age and retention, and rehearse a restore. Verify customer tasks and compare recovery time and possible data loss with your business needs.
