What DNS problems look like on a Mac
If direct internet reachability works but website names fail to resolve, DNS may be the broken part of the connection path.
Notes & guides
Understand what your internet is actually doing.
Practical explanations for normal Mac users: what speed tests miss, how to separate Wi-Fi from DNS or ISP trouble, and what evidence is worth keeping when a problem comes and goes.
How to document internet outages before contacting your ISP
Build a useful support record with timestamps, duration, reliability history, repeated patterns, and privacy-safe evidence instead of screenshots of one speed test.
Why a fast speed test does not prove your internet is reliable
Throughput can look excellent while short outages, latency spikes, jitter, or failed requests still make the connection frustrating.
Why intermittent internet outages are so hard to diagnose
Short outages often disappear before you can test them. The useful evidence is what happened before, during, and after the incident.
How much data should an internet health monitor use?
Background monitoring should stay lightweight. Heavy throughput tests belong behind explicit actions, not silent recurring checks.
How to read an Internet Reliability Score
A reliability score should summarize availability and stability without hiding the evidence or pretending sparse history is complete.
Internet speed vs. internet reliability: they are not the same thing
A fast connection can still be unreliable. Learn what speed, latency, jitter, failed checks, and outages each tell you about your internet.
What latency and jitter mean for your internet connection
Latency measures delay; jitter measures how much that delay moves around. Both can make a fast connection feel unreliable.
What happens when Onlink detects an internet incident
Onlink records the incident, captures lightweight evidence around it, and preserves uncertainty without silently launching a full speed test.
Is the problem Wi-Fi, your router, DNS, or your ISP?
A practical connection-path model for separating local Wi-Fi trouble, router problems, DNS failures, and wider internet outages.