A hacked website or leaked customer data can cause a company a lot of damage. Web hosting security relies on a combination of technology and behavior: a secure server platform, up-to-date software, good backups, and careful access management. This article provides a concrete checklist you can apply right away, regardless of which hosting provider you use.
Server security: getting the basics right
The foundation of secure web hosting is the server itself. A well-secured platform prevents vulnerabilities in the operating system or web server from being exploited. Pay attention to the following points:
- SSL/TLS certificate active on all domains and subdomains, with automatic renewal so certificates never expire.
- Firewall and malware scanning at the server level, so that suspicious traffic and malicious files are blocked before they can cause damage.
- NVMe storage with isolated environments, so that other customers’ websites cannot affect each other in the event of a security issue.
- A control panel with a permission structure, such as Plesk, where you can set per user who has access to which files and settings.
Keeping software and your website up to date
Many security issues arise from outdated software. CMS systems like WordPress, plugins, and themes regularly contain vulnerabilities that are exploited shortly after discovery.
- Install updates for your CMS, plugins, and themes as quickly as possible after release.
- Completely remove plugins and themes you no longer use, even if they’re inactive.
- Use strong, unique passwords for admin accounts and enable two-factor authentication wherever possible.
- Limit the number of admin accounts to what is actually needed.
Email and domain security
Email is a commonly used attack vector: phishing, spoofing, and spam harm not only your own organization but also customers and partners. Make sure your email security is set up correctly.
- Configure SPF, DKIM, and DMARC correctly so others can’t abuse your domain to send fraudulent emails.
- Choose business email that meets current security standards, including encrypted connections.
- Make sure your domain registration is locked against unauthorized transfer; check this under your domain names.
- Train employees to recognize phishing emails, since technology alone isn’t enough.
Backups, access, and monitoring
Even with all precautions in place, something can still go wrong. That’s when a working recovery plan becomes essential.
- Ensure daily, automatic backups that are stored separately from the website.
- Regularly test whether a backup can actually be restored.
- Restrict FTP and SSH access to trusted IP addresses wherever possible.
- Keep log files and periodically check them for unusual activity.
Take stock of your current situation
Check which software, plugins, and accounts are active, and which are outdated or unnecessary.
Set up the security basics
Enable SSL, firewall, SPF/DKIM/DMARC, and strong passwords with two-factor authentication.
Establish a backup strategy
Set up daily backups and test the restore process at least once.
Secure ongoing maintenance
Schedule fixed times for updates and check logs for suspicious activity.
If your current provider is behind on these points, it doesn’t have to be a major project. Through switching to Tandata, the migration — including security settings — is handled for you, and you can find explanations per topic in the knowledge base.
Frequently asked questions
Is a free SSL certificate just as secure as a paid certificate?
In terms of encryption, both offer the same level of protection. The difference mainly lies in additional validation options, which aren’t necessary for most business websites.
How often should I check my backups?
Check at least quarterly whether a backup can actually be restored, so you don’t discover something is missing only when an outage occurs.
What is the difference between SPF, DKIM, and DMARC?
SPF determines which servers are allowed to send mail on behalf of your domain, DKIM adds a digital signature, and DMARC determines what happens to mail that fails these checks.
Do I need to perform updates myself, or can this be automatic?
Many CMS systems and control panels offer automatic updates for core components. Major version upgrades are best carried out deliberately, after testing compatibility.
Conclusion
Secure web hosting isn’t a one-time setting but an ongoing process of up-to-date software, strong access security, correct email settings, and reliable backups. By following the checklist in this article, you significantly reduce the risk of hacks and data loss.