XML-RPC in WordPress: what it is 🧩 XML-RPC is a WordPress feature (available at https://your-site.com/xmlrpc.php ) that lets external apps/services communicate with your site using a remote procedure call protocol (XML over HTTP). Common legitimate uses Jetpack (some features rely on XML-RPC depending on configuration) Mobile/desktop apps that publish posts remotely Some automation/integration tools Historically: pingbacks/trackbacks (these are largely outdated and often abused) Why people disable it 🔒 XML-RPC is not “insecure by default,” but it’s a frequent target because: Brute-force login attempts Attackers can try many passwords efficiently via system.multicall . DDoS amplification / abuse Especially via pingback mechanisms on sites that allow it. It’s often unnecessary Many modern setups use the REST API instead. Should you disable it in SpinupWP? ✅ Recommended default If you don’t explicitly need XML-RPC , then yes—disable it . This is a common hardening step and usually reduces attack noise meaningfully. Keep it enabled if you rely on it Don’t disable (or disable partially ) if you use: Jetpack features that require XML-RPC A mobile publishing app or legacy integration that depends on xmlrpc.php Certain third-party services that still use XML-RPC to post/update content If you’re unsure, check your logs for requests to /xmlrpc.php and confirm whether any are coming from known services you use. What “disabling” should mean (best practice) Ideally, you want one of these outcomes: Block XML-RPC entirely Best if you never use it. Disable only pingbacks (but keep other methods) Useful if you need XML-RPC for publishing/Jetpack but want to stop common abuse. SpinupWP typically offers server-level controls (e.g., Nginx rules) or guidance to block xmlrpc.php . If you tell me how you’re planning to disable it (SpinupWP toggle, custom Nginx snippet, plugin), I can advise the safest approach. Quick decision checklist 🧠 You use Jetpack and depend on its remote features → Don’t disable blindly (consider disabling pingbacks only). You never publish remotely , don’t use Jetpack, and don’t need legacy integrations → Disable it . You’re getting lots of suspicious hits to /xmlrpc.php → Disable or restrict it (and consider adding rate-limiting/WAF). If you share whether you use Jetpack , any mobile publishing , or specific integrations, I’ll recommend the most appropriate SpinupWP configuration.