Use case
Network architecture diagrams
Internet, DNS, load balancer, firewall, VPC, and subnet: traffic you can actually point at.
Scenario
A network review before a launch: public Internet and DNS, a load balancer, a firewall, VPC and subnet frames, and the servers or Kubernetes workloads they protect.
Network topology for platform conversations: edge, load balancer, subnet, and the services behind them. Same editor as C4 and Kubernetes: one language for the team. Network pack is on Free.
What you draw
Network architecture diagrams
- Internet and DNS
- Load balancer, router, and switch
- Firewall
- VPC and subnet as frames
- Server, rack, wireless, CDN
- Legend for the review audience
Why Archboard
Archboard is a network topology canvas in the same hosted workspace as Kubernetes and C4. Ports and orthogonal edges make the path visible. Draw the network pack on Free; subscribe to Pro for unlimited nodes and embed when the review leaves the platform team.
Packs on this canvas
Network · Cloud · Security · Kubernetes
Every built-in pack is on Free (3 diagrams, 15 diagram nodes + 150 notes, text, stickers & mind map topics each, branded public share, live editing with your AI agents). Pro adds unlimited diagrams and nodes, seats for teammates to edit live, embed, and watermark-free export ($10/seat/month).
How a session goes
Open a canvas after Google or GitHub sign-in
Place Internet → DNS → load balancer → firewall → VPC/subnet
Drop servers or Kubernetes nodes inside the subnet frames
Share a branded public view link, or export SVG/PNG for the change ticket
Network diagrams people can point at
Network architecture diagrams usually fail at the pointer test: in a review, nobody can point at the path a packet takes. Icons float without frames, subnets are implied, and the firewall might as well be decorative. A network topology canvas passes the test by making the path visible, from the Internet to DNS to load balancer to firewall to VPC and subnet frames, with servers or Kubernetes workloads inside them. Orthogonal edges carry the hops cleanly; labeled edges carry the policy, like which port the firewall allows. When the whole path is on one board, the review moves from guessing to deciding.
Frame aggressively. VPC and subnet frames turn a pile of servers into an address plan reviewers can read: public subnets hold the load balancer, private subnets hold the workloads, and the firewall sits visibly between the edge and everything else. Add a legend for the review audience, because reviewers who do not live in the network still need to read it. Put DNS early in the path; half of all network mysteries start with name resolution, and the diagram should say so.
From topology sketch to change ticket
A network diagram becomes operational when it attaches to the change process. Export an SVG or PNG for the ticket, share a branded public link for the pre-launch review, and snapshot a revision before the firewall rule changes, since the before-shape is the fastest way to roll a conversation back. Keep the Kubernetes workloads that sit behind the firewall on the same canvas instead of a separate drawing; the subnet frame should contain what it actually routes to, whether that is servers or Pods. Tickets with a live link get approved faster than tickets with a stale screenshot.
The Network pack ships on Free with Cloud, Security, and Kubernetes packs beside it, because topologies never stop at the subnet edge. Combine Internet, router, switch, and CDN nodes with the firewall and VPC frames, and let the canvas hold the whole story from edge to workload. Pro adds embed plus watermark-free snapshots for the tickets that leave the platform team. Draw the path the packet takes, and then point at it.
Open a published example
- Datacenter NetworkInternet, DNS, load balancer, firewall, VPC, and subnet servers in path order.
- Zero Trust PerimeterIdP, WAF, firewall, vault, and certificates layered around workloads.
Questions
What should a network diagram always show?
The full packet path: Internet, DNS, load balancer, firewall, VPC and subnet frames, and the servers or workloads inside them, along with labeled edges for policy like allowed ports and protocols.
Can servers and Kubernetes share one topology?
Yes. Drop servers or Kubernetes nodes inside the same subnet frames on one canvas. Reviewers see what the subnet routes to without reconciling two drawings.
How do I present this to non-network reviewers?
Add a legend, keep one packet path per board, and share the live link so reviewers can pan and zoom. Export SVG or PNG when the change ticket needs a frozen snapshot.
Open a canvas in a minute
Sign in with Google or GitHub. Free for a single seat. Upgrade when the team joins.