Troubleshooting
Why Your Site Says Not Secure—and How to Fix It
Updated Sep 3, 2026
Fix
Diagnose the failure,
then fix it safely
Search errors, logs, and symptoms to get proven solutions. Follow step-by-step fixes, understand the cause, and verify with confidence.
Avoid pasting passwords, access tokens, private keys, or other secrets.
Start here — Get unstuck fast
I have an error messageSearch exact errors · 85My device is not workingHardware and driver issues · 5System is slow or laggingCPU, memory and I/O · 5Network / Wi-Fi issuesConnectivity problems · 6App / Service is crashingLogs and runtime failures · 2Kernel / Boot problemsBootloops, panic and init · 5
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How every Fix works
Identify the issue
Start with the exact error, log, or observable symptom.
Understand the cause
Connect evidence to known root causes before changing the system.
Apply the safest fix
Prefer reversible steps and clearly label destructive commands.
Verify and confirm
Run an explicit check and compare the expected result.
Existing library
Continue exploring
Security Testing
Read guide Why Your Site Says Not Secure—and How to Fix It
A Not Secure label can describe several very different failures. Decode the browser state first, repair the responsible layer, and verify the public path without hiding the warning.
Search Engine Optimisation ( SEO )
Read guide Fix a Missing H1 Without Breaking the Page
A missing H1 is a page-structure problem, not a mysterious penalty. Here is how to find where the title vanished and restore it without creating duplicates.
Audio, Video Recording
Read guide Fix a Black Screen in OBS Studio on Ubuntu
Diagnose an OBS black screen on Ubuntu by identifying the failed layer, choosing the correct Wayland or X11 source, and validating the portal, scene, package, and GPU path.
Networking
Read guide Build a Small Ubuntu LAN That You Can Actually Debug
Connect Ubuntu systems through a switch, decide whether DHCP or an isolated static subnet fits, configure Netplan with rollback, and test each network layer.
Linux
Read guide Fix Wi-Fi Not Detected on Ubuntu: A Diagnostic Guide
A missing Wi-Fi menu, a missing adapter, and one missing network are different failures. Follow this evidence-first Ubuntu workflow to locate the broken layer before restarting services or changing drivers.
Linux
Read guide Fix dpkg Dependency Errors on Ubuntu Safely
Prefer `apt install ./package.deb` so Ubuntu can resolve repository dependencies in one transaction. If `dpkg -i` already left packages unpacked or unconfigured, diagnose the exact state, repair it without blind removals, and verify the package database.
Networking
Read guide Fix “No Address Associated with Hostname” on Linux
The error means the resolver could not return a usable address for the requested name and address family. Diagnose the same NSS path the application uses before editing `/etc/hosts`, changing DNS, or flushing caches.
Yocto Embedded Linux
Read guide Fix Yocto “RDEPENDS but Not a Build Dependency”
The Yocto `[build-deps]` warning means packaging discovered a runtime edge that the earlier task graph could not reliably satisfy. Fix the metadata at the correct layer after identifying both the output package and its provider recipe.
Yocto Embedded Linux
Read guide BitBake Build Process: Tasks, Packages and Debugging
BitBake does not blindly execute a fixed shell-script sequence. It builds a dependency graph, checks task signatures and shared-state artifacts, then runs only the work needed to produce the requested recipe, package, image, or SDK.
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