Paweł Pokrywka's Lab
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Other causes of Signed Exchanges errors
From various limits to global outages—how to tackle SXG challenges (part 6 of 8)
Mar 3
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Other causes of Signed Exchanges errors
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February 2025
Debugging mutable subresources: a detective story
The bizarre case of Signed Exchanges: how frequent deployments increased the error rate and revealed hidden cache poisoning (part 5 of 8)
Feb 21
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Debugging mutable subresources: a detective story
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The mystery of mutable subresources in Signed Exchanges
What they are, how they break caching, and how to fix them (part 4 of 8)
Feb 11
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The mystery of mutable subresources in Signed Exchanges
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January 2025
Understanding CORS errors in Signed Exchanges
Learn debugging techniques and why the all-or-nothing principle makes these errors critical (part 3 of 8)
Jan 31
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Paweł Pokrywka's Lab
Understanding CORS errors in Signed Exchanges
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Prefetching subresources with Signed Exchanges
How to make your website load instantly for Google-referred users (part 2 of 8)
Jan 13
2
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Prefetching subresources with Signed Exchanges
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2
How I brought LCP down to under 350 ms for Google-referred users on my website
Exploring the techniques I used to optimize performance on a high-traffic website
Jan 8
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Paweł Pokrywka's Lab
How I brought LCP down to under 350 ms for Google-referred users on my website
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August 2023
Create a Ruby gem with Zeitwerk as a development-only dependency (tutorial)
Forget require statements and make your gem lightweight at the same time
Aug 20, 2023
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Paweł Pokrywka's Lab
Create a Ruby gem with Zeitwerk as a development-only dependency (tutorial)
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July 2023
Rebooting Linux with encrypted disk
How to make it easier to keep the kernel updated
Jul 31, 2023
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Paweł Pokrywka's Lab
Rebooting Linux with encrypted disk
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Ledger card: was there a data leak?
How I traced the source of the potential data leak
Jul 4, 2023
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Paweł Pokrywka's Lab
Ledger card: was there a data leak?
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August 2021
How to deanonymize smart contract author
Doxxing Solidity developer for fun and profit
Aug 7, 2021
1
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Paweł Pokrywka's Lab
How to deanonymize smart contract author
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January 2011
Freeconet: Intercepting VoIP Calls
Translated by AI to English, originally published on 11 January 2011 in Polish.
Jan 11, 2011
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Paweł Pokrywka's Lab
Freeconet: Intercepting VoIP Calls
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