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1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsFor a quick external check, WPScan offers a free instant report from a website URL. For ongoing checks of site files and suspicious changes, consider an installed scanner such as Wordfence or Jetpack Scan. These tools have different scopes, so there is no evidence here for ranking them by accuracy. A scan can help reveal issues; it cannot prove a site is safe or replace updates, backups, and incident response.
Which WordPress scanner fits your needs?
| Tool | How it scans | Coverage described by the provider | Cadence and response | Important qualification |
|---|---|---|---|---|
| WPScan | Enter a public website URL for an online report. | Its vulnerability database covers WordPress core, plugins, and themes. | Free, instant report; this is an on-demand check. | You must have permission to scan the site. The vendor describes its database, but no independent accuracy evaluation is established here. |
| Wordfence scanner | Installed scanner that examines site files and content. | Malicious code, backdoors, shells, malicious URLs, infection patterns, posts, pages, comments, publicly accessible sensitive files, and vulnerable or outdated WordPress components. | Provides scanning and vulnerability alerts. The vendor says Wordfence Free firewall rules and malware signatures are delayed 30 days versus its real-time feed. | Standard Scan omits plugin and theme repository file-comparison checks by default; enable them in settings if needed. High Sensitivity uses more resources and takes longer. |
| Jetpack Scan | Automated scanning of an installed WordPress site. | Known vulnerabilities and suspicious changes in plugins, must-use plugins, themes, uploads, and selected WordPress root and wp-content files. | Automated scans and email alerts; the listed plan includes a website firewall and one-click fixes for many findings. | Threats present before activation may require additional cleanup; one-click fixes do not guarantee full remediation. |
| Jetpack Protect | Automated vulnerability scanning. | Vulnerabilities associated with WordPress core, themes, and plugins. | Daily scans. | On WordPress.com-hosted sites, documentation says Jetpack Scan uses data from WPScan and the WordPress.com security team. |
Best choice by situation
Use WPScan for a one-time external check
If you want a fast initial look without installing a plugin, use WPScan’s online scanner. It asks users to confirm they have permission to scan the entered site. Treat the report as a useful vulnerability signal, not a complete inspection of private files or proof that the site is clean.
Use Wordfence for installed file and content checks
Wordfence is the more directly relevant option when you want an installed scanner to inspect site files and content for malware indicators as well as flag vulnerable or outdated components. Its documentation recommends Standard Scan for most sites. If comparing plugin or theme files against repository versions matters, turn on those checks in scan settings; they are not included in Standard Scan by default. Choose High Sensitivity only when its broader checks justify additional resource use and scan time.
Wordfence Free includes malware scanning and vulnerability alerts. Its firewall rules and malware signatures arrive 30 days later than the real-time feed, a limitation worth considering when timeliness matters. Details are on the provider’s Wordfence Free page.
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Use Jetpack for automated checks and available fixes
Jetpack Scan describes automated checks across plugins, must-use plugins, themes, uploads, and selected root and wp-content files, with email alerts and one-click fixes for many issues. The vendor notes that infections predating activation may need extra cleanup. Jetpack Protect separately describes daily checks for vulnerabilities associated with core, themes, and plugins; these stated scopes should not be assumed to be identical.
How to choose and use a scanner safely
- Decide what question you need answered. For an external, on-demand report, start with WPScan. For recurring checks inside the site, compare Wordfence and Jetpack based on the components and files they say they inspect.
- Confirm authorization. Only scan a site you own or have explicit permission to test. WPScan explicitly requires permission before scanning.
- Check the settings and coverage. With Wordfence, review whether repository comparisons are enabled if you need plugin and theme file-change checks. For Jetpack, note the listed file categories and the qualification about pre-existing infections.
- Review each finding and act. Verify the affected component, update or remove vulnerable software, and investigate malware findings. A scanner’s suggested fix may not remove every trace of an infection.
- Keep defenses beyond scanning. Maintain backups and updates, and have an incident-response plan for confirmed compromise. No scanner result certifies a site as secure.
What these scanners can—and cannot—tell you
WPScan is an online URL-based report backed by the vendor’s vulnerability database. Wordfence and Jetpack describe installed or automated checks that include selected files and site content. Those are different testing models, not a like-for-like accuracy contest. Findings can identify known vulnerabilities or suspicious indicators within a tool’s stated scope; coverage beyond that scope, successful remediation, and the absence of compromise are not established by a clean report.
For WordPress.com-hosted sites, the platform documentation says Jetpack Scan uses data from WPScan and the WordPress.com security team: WordPress.com Jetpack Scan documentation.
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