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Protocol Explorer

Watch the internet work, packet by packet: interactive lessons from DNS and TCP to TLS, with every packet decoded byte by byte.

Freemium Education and learning Web
Last nightLivechecked 1 h ago
Answered in1,547 msnormal
Uptime—Too new to rate (1 check)
full history ↓

Plans and what they include

Free lessons (HTTP, HTTPS)
Free
See this plan ↗
Lowest price
All 39 protocol lessons, one-time unlock
$5
See this plan ↗

Read from their site on 15 Nov 2026 — the monthly figure where a plan is shown both ways. Verify on the site before buying.

About Protocol Explorer

Protocol Explorer is a free interactive network simulator: watch HTTP, HTTPS, TCP, TLS, DNS and 35+ protocols in motion, with every packet decoded byte by byte. Animated lessons in 8 languages.

What it looks like

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Status history

Is Protocol Explorer down? Status page
answered 1 of 1 night · avg 1547 ms
A year of nights1 of 1 night answered · avg 1,547 ms
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fastansweredslow (2.5 s+)downno check
  1. 15 Nov 2026
    Updated from the product site after a check 2 plans, price 5 USD once
  2. 15 Nov 2026
    Posted on Facebook
  3. 15 Nov 2026
    Published
  4. 13 Nov 2026
    Added to the catalog
Tracked
0 days
Reliability, 30 days
Too new to rate (1 check)
Launched
2026 copyright

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