Is Cloudflare Actually Protecting Your Website?
Adding a website to Cloudflare is an important step towards improving security and performance, but creating an account alone does not guarantee that every part of a website is protected.
Your domain may use Cloudflare’s nameservers while particular DNS records remain unproxied. Your public website may be protected while a separate subdomain points directly to an origin server. Security settings may also be too restrictive, too permissive or unsuitable for the application being protected.
These configuration details matter because attackers do not necessarily target only the homepage. They may look for exposed services, vulnerable applications and ways to bypass the intended security layer.
The good news is that website owners can perform several checks to understand whether Cloudflare is configured correctly. You do not need to be a cybersecurity specialist to start, although complex applications may require professional assessment.
This guide explains what to check, what the results mean and when you may need additional support.
1. Check Whether Your Domain Uses Cloudflare Nameservers
Start by checking the nameservers associated with your domain. If your domain is configured to use Cloudflare’s authoritative DNS, its nameservers should match those assigned to the domain in your Cloudflare dashboard.
You can review the nameservers in your domain registrar’s control panel and compare them with the nameservers shown in Cloudflare.
If they do not match, your domain may not be using the expected Cloudflare DNS configuration. However, a mismatch does not automatically mean the website is insecure: the domain may use another DNS provider or have a different intended setup.
It is also important to distinguish between using Cloudflare for DNS and routing website traffic through its proxy. A domain can use Cloudflare DNS while particular records remain unproxied.
Check the configuration before changing nameservers, because an incorrect change can disrupt website access, email delivery or other domain services.
2. Check Whether Your Website’s DNS Records Are Proxied
One of the most important checks is whether the relevant DNS records use Cloudflare’s proxy.
For supported web traffic, proxied records route requests through Cloudflare before they reach the origin server. Unproxied records resolve directly to their configured destination instead.
In your Cloudflare dashboard, open the relevant domain and navigate to DNS records. Review the records associated with your website, especially the root domain and the www hostname if you use it.
For hostnames intended to use Cloudflare’s HTTP proxy, check that the proxy status is enabled where supported and appropriate.
Do not enable proxying indiscriminately on every DNS record. Email-related records and services that require direct connections may need different settings. Some applications also have specific compatibility requirements.
The objective is to ensure that the web traffic you intend to protect actually passes through Cloudflare.
3. Check Whether Your Website Is Being Served Through Cloudflare
Once the DNS and proxy configuration is correct, visit your website and inspect the response headers using your browser’s developer tools or a command-line HTTP request.
For example, you can run the following command on a computer with curl installed:
curl -sSI https://example.comReplace example.com with your own domain.
Depending on the response and configuration, you may see headers such as server: cloudflare or a cf-ray identifier. These can provide evidence that the response passed through Cloudflare.
However, headers are not a complete security test. They can be absent, altered or affected by intermediary services, and their presence does not prove that every hostname or service is protected.
Check the actual hostname you intend to secure, including relevant subdomains. A protected homepage does not automatically mean that a separate application or API uses the same configuration.
4. Review Cloudflare Security Events
Your website may be receiving suspicious traffic without showing obvious signs of an attack. Reviewing available security events can help you understand what Cloudflare is detecting and how configured rules are responding.
In the Cloudflare dashboard, open the relevant security analytics or security events area. The exact layout and available information may vary by plan and dashboard version.
Look for patterns such as repeated blocked requests, unusual traffic spikes or requests triggering web application firewall rules.
A large number of blocked requests does not necessarily mean that your website has been compromised. Internet-facing websites routinely receive automated scans and unwanted traffic.
Likewise, an empty event view does not prove that the website is perfectly secure. Logging coverage, traffic volume, available features and the time period being examined can affect what you see.
Use the information to identify patterns and investigate unusual activity rather than treating one dashboard metric as a definitive security verdict.
5. Review Your Web Application Firewall Settings
A web application firewall, or WAF, helps inspect HTTP requests and apply rules designed to detect or block certain attacks against web applications.
Cloudflare Pro includes web application firewall capabilities, but the effectiveness of your configuration depends on the available rules, the application being protected and how the settings are managed.
Review the security rules and managed protections enabled for your domain. Check whether they are appropriate for the software you run, especially if your website uses WordPress, an online store or a custom application.
Do not activate aggressive rules without testing. An overly restrictive configuration may block legitimate login attempts, contact forms, checkout processes or API requests.
At the same time, do not assume that the default settings automatically address every risk. Complex applications may need carefully designed rules and further testing.
If you are unsure how a rule affects your website, review its behaviour in the dashboard and test changes in a controlled manner before applying them to important production services.
6. Check That Your SSL/TLS Configuration Is Correct
HTTPS helps protect information exchanged between a visitor’s browser and a website. When Cloudflare is involved, it is important to understand the connection between the visitor, Cloudflare and the origin server.
Review the SSL/TLS encryption mode configured for your domain. Where the origin server supports a valid certificate, Full (strict) is generally the preferred mode because it validates the certificate presented by the origin.
Avoid assuming that a browser showing a padlock means every connection is configured securely. A visitor-facing HTTPS connection alone does not establish that the connection between Cloudflare and the origin is using the desired security settings.
Check for certificate errors, unexpected redirects and mixed-content warnings. Test important website functions after changing encryption settings, particularly if the site uses third-party integrations.
If you are unsure whether the origin certificate is valid, have your hosting provider verify it before changing the configuration.
7. Check Whether Your Origin Server Can Be Accessed Directly
One of the more important checks involves the origin server — the infrastructure that actually hosts your website.
If attackers can discover and access the origin IP address directly, they may be able to send requests to the server without passing through Cloudflare. This can undermine the protection you intended to establish.
Review your DNS records, server configuration and hosting firewall rules to understand which services are publicly exposed. Where appropriate, restrict origin web traffic so that it accepts connections only from Cloudflare’s published network ranges, while preserving any necessary trusted access for administration and other services.
This must be done carefully. Incorrect firewall rules can take your website offline or lock administrators out of the server.
Do not assume that hiding an IP address is sufficient by itself. Origin protection should be enforced through suitable network controls, and exposed services should be reviewed separately.
For complex hosting environments, ask your hosting provider or security engineer to assess the origin configuration before making changes.
8. Test Your Website Without Disrupting Legitimate Visitors
Security testing should confirm that the website behaves as expected, not simply that it blocks as much traffic as possible.
Start with normal website functions. Visit important pages, submit a test enquiry, sign in with a legitimate account and complete a test transaction if your business has a checkout process.
Review whether legitimate requests are being challenged or blocked unexpectedly. If you use a content management system, test its administration and publishing workflows as well.
You can also review security logs and use reputable external assessment tools to identify obvious configuration problems. Only test systems you own or have explicit permission to assess.
Avoid launching high-volume traffic tests or deliberately disruptive attack simulations against a production website without a properly authorised testing plan.
A successful configuration should balance security with accessibility. Blocking genuine customers is not a sign of a well-configured website.
9. Understand What Cloudflare Cannot Protect Automatically
Even when Cloudflare is configured correctly, important security gaps may remain.
Cloudflare does not automatically update WordPress plugins, patch application vulnerabilities, remove malware or secure weak administrator passwords. It cannot guarantee that customer accounts will never be compromised or that confidential information is protected against every possible attack.
If a website has already been hacked, simply activating Cloudflare is not a substitute for investigating the incident, removing malicious code, closing the vulnerability and restoring trustworthy files where necessary.
Website owners should maintain tested backups, keep software updated, enforce strong authentication and monitor their hosting environment.
If the business operates email, databases, remote access services or other systems outside the protected web traffic path, those services need their own appropriate security controls.
Cloudflare should form part of a wider cybersecurity strategy rather than serve as the only defence.
10. Is Free Cloudflare Enough, or Do You Need Pro?
The appropriate Cloudflare plan depends on the website’s needs and the specific features required.
The Free plan can provide useful foundational capabilities, including CDN functionality and DDoS protection. Cloudflare Pro adds paid features, including additional web application firewall capabilities and other performance and security options.
Businesses should compare the current plan features against their actual requirements rather than assume that every website needs a paid subscription.
A simple informational website may have different needs from an online store, a customer portal or a business application that processes sensitive information.
For companies that want Cloudflare Pro-based protection through a provider, Tremhost offers an option from $9 per month. Before purchasing, confirm the coverage, included features and level of setup or management support.
You can review the available options on Tremhost’s Cloudflare services page.
Get Help Checking Your Cloudflare Configuration
Knowing which settings to inspect is useful, but interpreting the results can be more difficult when a website has multiple subdomains, custom applications or complex hosting requirements.
Tremhost provides Cloudflare-related services and broader cybersecurity support for businesses that need help strengthening their online presence.
Depending on the selected service, support may involve reviewing DNS configuration, checking proxy coverage, assessing security settings and identifying areas that need additional attention. Confirm the precise scope of assistance before purchasing.
For wider protection that extends beyond a public website, explore Tremhost’s managed cybersecurity services.
The goal is not simply to activate a security service. It is to understand which assets are protected, where weaknesses remain and what needs to happen next.
Final Checklist: Is Your Website Properly Protected?
Before considering your Cloudflare setup complete, verify that your domain uses the intended DNS configuration, relevant web records are correctly proxied, HTTPS is configured appropriately and security events are being reviewed.
Confirm that your web application firewall settings suit your application, that the origin server is protected against direct access where appropriate and that important website functions still work correctly.
Finally, check the security of the underlying website and hosting environment. Keep software updated, maintain reliable backups and use strong authentication.
Cloudflare can provide an important layer of protection, but effective website security depends on the complete configuration and the systems behind it.
If you want to strengthen your website’s security and performance, explore Cloudflare Pro-based protection through Tremhost and assess whether it fits your requirements.
