Mixed-Content Warnings Remain After Moving WordPress to HTTPS
Remove WordPress mixed content after HTTPS migration by locating database, theme, CSS, CDN and external HTTP resources safely.
SPECIALIST DIAGNOSTIC GUIDES
Find the failing layer.
Repair the website safely.
Hands-on guides for outages, broken releases, login failures, redirects, certificates and missing assets across modern web platforms.
START WITH THE VISIBLE SYMPTOM
Guidance organised around real incidents.
Choose the symptom closest to what you see, collect the evidence and follow a controlled route to verification.
01
Blank pages and server errors
Trace the failure across the browser, hosting, runtime, database and application before changing production.
Explore the guides 02Broken releases and migrations
Compare the deployed artifact, configuration, permissions and data state with the last known-good release.
Explore the guides 03Login and access failures
Separate identity, session and permissions problems without granting unnecessary administrator access.
Explore the guides 04Redirect and certificate faults
Find the first incorrect handoff across DNS, TLS, CDN, proxy and application routing.
Explore the guides 05Missing content and assets
Follow one record or asset from source and build through cache, CDN and browser delivery.
Explore the guides 06Slow or unstable websites
Measure server time, transfer, rendering and third parties under one repeatable test.
Explore the guidesExplore: Admin Media Frontend
Administracio Mitjans Frontend
Administrador Medios Frontend
Administrador Mitjans Frontend
Base Dades I Dades Wordpress
Base Datos Y Datos Wordpress
Connectors Temes Actualitzacions
Database Wordpress Data
Errores Visibles Http Php
Errors Visibles Http Php
Hosting Dns Ssl
Http Php Visible Failures
Manteniment Recurrent
Mantenimiento Recurrente
Migraciones Copias Seguridad
Migracions Copies Seguretat
Migrations And Backups
Plugins Temas Actualizaciones
Plugins Themes Updates
Recurring Maintenance
Read the guide ↗
How to Test a WordPress Update Before Applying It to Production
Test WordPress core, plugin and theme updates on a production-like staging copy with data safety, feature checks and rollback evidence.
cPanel Restores WordPress Files but Not the Correct Database
Recover a cPanel WordPress restore that uses the wrong database by identifying configuration, backup timestamps, prefixes and safe import.
WordPress Admin Redirects Back to the Login Page
Fix a WordPress admin login loop by tracing authentication cookies, domain and HTTPS settings, cache, plugins and user sessions.
Plesk Shows the Default Page Instead of the WordPress Site
Fix a Plesk default page by checking DNS, subscription, hosting type, document root, index priority, virtual host and proxy cache.
WordPress Admin Shows a Blank Page While the Website Still Works
Diagnose a blank WordPress administrator while the public site works through PHP logs, admin hooks, assets, memory and user-specific state.
The WordPress Block Editor Says “The Response Is Not a Valid JSON Response”
Fix the WordPress block editor invalid JSON response by tracing REST status, URLs, permalinks, SSL, firewall and PHP output.
WordPress `admin-ajax.php` Returns 400 Bad Request
Diagnose WordPress admin-ajax.php 400 errors by tracing action names, nonces, authentication, request data, callbacks and firewall rules.
WordPress Media Upload Fails with an HTTP Error
Fix WordPress media HTTP upload errors by tracing request status, PHP limits, permissions, disk, image processing, firewall and REST.
Images Exist on the Server but WordPress Shows Broken URLs
Repair WordPress images that exist on disk but return broken URLs by tracing attachment metadata, paths, permissions, domain and thumbnails.
A WordPress Menu or Mobile Navigation Stops Working
Fix a WordPress menu or mobile navigation failure by tracing menu assignment, markup, JavaScript, overlays, cache and accessibility.
WordPress Returns 504 Gateway Timeout on One Administrator Action
Diagnose a WordPress 504 on one administrator task by tracing proxy deadlines, PHP execution, MySQL locks, remote APIs and safe batching.