Subtrace is a zero-code network tracer. It's like having an inspect element button for your whole infra: when you start a process with Subtrace, you'll see every HTTP request coming in and going out in realtime.
Subtrace is a Y Combinator company in the Winter 2025 batch. Its directory entry describes it as: Zero code network tracer. The founders listed are Adhityaa Chandrasekar (Founder/CEO), Sachin Sridhar (Founder/CTO) (Y Combinator directory entry, December 2, 2024).
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New accelerator entry · 2024-12-02 · the record
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Subtrace is a zero-code network tracer. It's like having an inspect element button for your whole infra: when you start a process with Subtrace, you'll see every HTTP request coming in and going out in realtime. Under the hood, it uses BPF to make this possible without any root privileges or code changes. We have ~2.5k stars on Github.
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Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
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