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Lucas Pardue
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Lucas Pardue

@SimmerVigor
HTTP/2, HTTP/3 and QUIC @Cloudflare. Co-chair of IETF QUIC WG. Thoughts are my own. Also simmervigor on bsky and mastodon
London, England
lucaspardue.com
Joined May 2012
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  • Pinned
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    Lucas Pardue
    @SimmerVigor
    Oct 22, 2020
    If you're still trying to get to grips with HTTP/3 and QUIC, this blog post includes a list of all of my Cloudflare TV segments with various deep dives and special guests.
    user avatar
    Cloudflare
    @Cloudflare
    Oct 22, 2020
    A Last Call for QUIC, a giant leap for the Internet. cfl.re/2HrS22d
  • user avatar
    Lucas Pardue
    @SimmerVigor
    Jun 12
    Starting now!
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    Henri Helvetica 🇭🇹 👨🏾‍🚀 🚀
    @HenriHelvetica
    Jun 12
    📢 We're just about 1hr away. ✨ SPDY STREAM 036 ✨ will be about RFC 9114. More colloquially know has HTTP/3 or H3 for short. If you have q?s, join us. @SimmerVigor will ready and willing. All details in the pinned post!
  • user avatar
    Lucas Pardue
    @SimmerVigor
    Apr 3
    Qmux ルールを破るたびに、日本酒一杯おごってね
  • user avatar
    Lucas Pardue
    @SimmerVigor
    Oct 31, 2025
    HTTP/2-based DoS attacks are here to stay. Many implementations are hardened to them. Quirky behaviour can trigger defenses and cause ENHANCE_YOUR_CALM. Read one of my latest trips down a debugging rabbit hole.
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    Cloudflare
    @Cloudflare
    Oct 31, 2025
    Learn how a common pattern of using Go's HTTP/2 client can lead to unintended errors and the solution to avoiding them. cfl.re/4qzqfhd
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    Lucas Pardue
    @SimmerVigor
    Oct 29, 2025
    About 6 months ago Louis Navarre reached out to report some DoS-related vulnerabilities in quiche's ack processing. We fixed it up and saw no evidence that the vulnerabilities had been exploited. Check out the deep dive blog post:
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    Defending QUIC from acknowledgement-based DDoS attacks
    From blog.cloudflare.com

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