This guide walks through real mistakes—from weak SSL setups to missing headers—seen on dental sites in the last 90 days, with side-by-side “do this, not that” guidance. Each pair is based on issues most likely to push your WordPress security grade into failing territory.
You’ll see exactly what to do, what to avoid, and the time it actually takes to close these gaps—based on security checks that go far beyond just having a padlock icon.
Dental WordPress Security Do's and Don'ts
❌ Don't: Assume HTTPS Means Secure
Basic HTTPS is not enough. Our scans rated only 7.0% of dental WordPress sites as “Good” in complete SSL/TLS configuration—far below the 95% industry average for any HTTPS presence (Chrome Transparency Report 2025). Most failing sites had weak encryption settings, missing HSTS headers, or expired certificates.
❌ Consequence: 93.0% of dental WordPress scans showed SSL/TLS gaps that could weaken visitor trust and privacy signals.
Why does this persist? Many domain hosts now auto-enable HTTPS, but don’t guide you to harden settings or keep certificates updated. It’s easy to mistake a padlock for comprehensive protection.
✅ Do: Harden Your SSL/TLS and Enable HSTS
Go beyond the basics. Check your site's SSL with an external tool—look for these signs of robustness: - Valid, up-to-date certificate - Modern protocols (TLS 1.2 or higher) - HSTS (HTTP Strict Transport Security) header present
Time to implement: 15–30 minutes. Updating your server or host settings is usually a support ticket or plugin setting away. HSTS can often be added via a security plugin or by editing your .htaccess or server config.
Complete SSL/TLS and HSTS signal a secured clinic—even to the browser.
❌ Don't: Ignore Browser Security Headers
Only 0.6% of dental WordPress scans had all core security headers rated Good. This is lower than the web-wide average of 4-6% (Scott Helme Security Headers Survey 2025), and far below expectations for healthcare-related websites.
❌ Consequence: Sites without proper headers lack browser-enforced protections—like stopping clickjacking, reducing mime-type confusion, and blocking XSS vectors.
Site builders and CMS themes often skip header configuration entirely, assuming “plugin-level” security will block attacks. This leaves a gap only a server or host can fix.
✅ Do: Add Foundation Security Headers
Review and implement these headers:
- Strict-Transport-Security (HSTS)
- X-Content-Type-Options: nosniff
- X-Frame-Options: SAMEORIGIN
- Referrer-Policy: no-referrer-when-downgrade
- Content-Security-Policy (CSP) (bonus: none in this segment had it set)
Time to implement: 15–45 minutes. Most managed WordPress hosts will help on request; leading security plugins include "Header" sections for one-click setup.
These headers don’t just tick compliance boxes—they actively reduce your website’s attack surface.
❌ Don't: Leave "Server Banner" and Version Info Visible
Only 0.8% of dental practice scans hid their server banner (information about the server type and WordPress version). The vast majority left default server details and potentially even plugin versions visible in HTTP headers, HTML meta tags, or public files.
❌ Consequence: Exposed server and WordPress versions make dental sites easy targets for automated vulnerability scans—attackers match disclosed versions against known exploits.
For example, attacker toolkits often scrape HTTP headers (Server, X-Powered-By), public readme files (readme.html), or generator meta tags to identify WordPress or server versions and target relevant CVEs. This is not theoretical: in CVE-2021-29447, attackers used XML-RPC version disclosure as an initial step toward exploiting a remote file inclusion flaw.
Many clinics are unaware this data is public, since these settings are invisible from normal browsing.
✅ Do: Remove Unnecessary Version Disclosure
Audit what your site tells the public. Remove or obfuscate:
- WordPress core version from HTML generator meta tags
- Server type and version in HTTP headers (Server, X-Powered-By)
- Public access to /readme.html and related files
Time to implement: 10–20 minutes. Most of these are set-it-and-forget-it—just a few plugin toggles or .htaccess rules.
Reducing unnecessary information closes an easy discovery loop for attackers and raises your site’s effort-to-target threshold.
❌ Don't: Overlook Mixed Content Warnings
21.3% of scans flagged mixed content: resources served insecurely over HTTP on otherwise HTTPS sites. This can silently break forms, cause browser warnings, and block new patients from making appointments—not to mention tank SEO standing.
❌ Consequence: Over 1 in 5 dental sites risk browser "Not Secure" warnings on critical pages, especially appointment forms.
Common mistake: Embedding old image links, social widgets, or third-party scripts with http:// instead of https:// source URLs.
✅ Do: Scan and Correct Mixed Content
Use a free mixed content scanner or browser dev tools to find HTTP resources on your site. Correct these by:
- Updating hardcoded http:// links in your theme, plugins, or media
- Replacing legacy script/widget embeds with HTTPS versions
- Using a plugin to automatically rewrite links (most caching/security plugins support this)
Time to implement: 20–40 minutes. For most dental practices, this is a one-time sweep unless you frequently add content from external sources.
A clean mixed content report keeps every patient interaction private—and ensures browsers show your site as "Secure."
❌ Don't: Skip Regular Review of Cookie Security
Dental WordPress sites scored well here—89.8% passed the cookie security check. But the 10.2% gap still matters for HIPAA compliance and visitor privacy.
❌ Consequence: Cookies without
SecureorHttpOnlyflags may create unnecessary session risk, especially if patient forms or private areas exist.
Sometimes, plugins or custom forms set cookies without the right flags—even after you’ve configured other settings site-wide.
✅ Do: Enforce Secure Cookie Settings
Check your main login/session/access cookies:
- Use the Secure flag (HTTPS only)
- Use the HttpOnly flag (inaccessible to JavaScript)
Set these either via your managed host, a security plugin, or directly in your theme's functions.php. Most setups take just 5–10 minutes for a review and fix.
This action often closes a gap standing between “passing” and truly “good enough” WordPress security.
Quick Reference
| Don't | Do | Time |
|---|---|---|
| Assume HTTPS is enough | Harden SSL/TLS & add HSTS | 15–30 min |
| Ignore browser headers | Set recommended headers | 15–45 min |
| Leak server versions | Remove version info | 10–20 min |
| Leave mixed content unchecked | Correct insecure links | 20–40 min |
| Never review cookies | Enforce Secure/HttpOnly | 5–10 min |
Final Thoughts
If you make just one upgrade this week, address your SSL/TLS score and enable the HSTS header. This closes an outsized source of avoidable browser warnings and trust problems—an easy win for most practices under 30 minutes.
The data is clear: Dental WordPress security lags behind even general small-business benchmarks. With 72.1% of scans in the D/F range, it’s worth verifying your own status.
For a deeper dive into low-jargon, instant wins, see our quick security improvements guide. Also, check out our most recent scan of nearly 4k+ dental sites to see where security fails most often Dental WordPress sites