Your connection, or their outage?
What you notice says a lot about which side the problem is on. Kilobat checks both sides and says which.
You noticeUsually it’sWhat Kilobat does
Only Docker fails; everything else loads
An outage at Docker, or something on the path to it only: DNS, a VPN or proxy, a blocked host.
Why can’t it connect? checks every layer to docker.com, then Docker’s status page. If the page reports an outage and nothing on your side failed, it says “Docker is down for everyone, not you”. Free
Docker fails on this network, but works on mobile data
This network: an office, school, hotel or country rule, or its DNS.
Kilobat compares this network’s DNS with one encrypted lookup and tests the secure connection, then says “looks blocked on this network, not down”, with what it measured. Free
Everything is slow, Docker included
Your own line: Wi-Fi, the router, your provider or DNS. Not Docker.
Router and internet latency side by side show whether your own line is slow. Pro names the failing link, Wi-Fi, router, internet or DNS, with a fix. Free Pro
Docker’s status page is green, but Docker still fails
The path from your Mac to Docker: DNS, a VPN or proxy, IPv6, or the server’s answer.
“Docker’s status page reports no problems”, then the layer that broke and what to try next. Free
Six links between you and Docker.
Docker loads only if every step works. A status page covers the last one; Kilobat checks the five before it too.
- Your MacA VPN, proxy or app in the way
- Wi-FiSignal, noise and band
- RouterLatency and loss to it
- ProviderLatency and loss beyond it
- DNSWhether docker.com resolves, and how fast
- DockerDocker’s status page, read live
What Kilobat watches
How Kilobat knows it’s Docker.
Kilobat matches apps and sites to the right status page by bundle ID and domain, so a failing Docker points at Docker’s status page, not a guess.
On your Mac
The Docker app, by its bundle ID.
If Docker won’t connect
What Docker needs from your network.
Docker Desktop signs in, checks for updates and pulls images from separate hosts, so one blocked host can break only part of it.
- Pulls:
registry-1.docker.io, auth.docker.io and production.cloudfront.docker.com. - Sign-in and Hub:
login.docker.com, auth.docker.com and hub.docker.com. Docker lists more hosts for updates and support.
From Docker’s own help pages, listed under Sources. Kilobat’s guides cover DNS, VPN and proxy trouble on a Mac.
What’s free, and what Pro adds
Free, for good Free
- Is it them or me? Status pages for 72 services, Docker included
- The outage at the top of Health, and in a connection check
- A notification per outage while an app keeps failing
- Whether the calling service had an outage, on every call card
kilobat down, kilobat why and the MCP tool service_status- Blocked on this network, or not available in your region, said as measured
Pro, $29 once Pro
- Findings with a fix for router, DNS and login-page trouble
- Possible causes of call freezes
- Outage and latency history for your own line
- Signal radar and channel crowding
Pro is $29 once for two Macs, with a 7-day free trial and 14-day refunds. Free for students.
Next time Docker stalls, know whose problem it is.