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    Alex Sci

    alexsci.com · Personal blog · on HN since 2019

    Alex Sci writes about software, web standards, and internet infrastructure, including RSS blogrolls, email security, UUID collisions, and EC2 pricing.

    Visit blogRSSHN submissions
    Web DevelopmentNetworkingProgramming
    What HN says

    HN commenters engage with its RSS blogroll network and its discovery pages, and one links the aggregate feed to ask about update frequency.

    Stats for nerds
    18HN people shared it
    33linked in comments
    392story points
    Jun 2026last shared
    2024people per year2026

    Top posts on HN

    1. 1
      Discovering the indieweb with calm tech
      1 person · 229 points · first shared 2025 · 21 comments on HN
    2. 2
      Why UUIDs won't protect your secrets
      1 person · 75 points · first shared 2025 · 59 comments on HN
    3. 3
      SMTP Downgrade Attacks and MTA-STS
      1 person · 25 points · first shared 2024 · 16 comments on HN
    4. 4
      Designing Personal Software Why we need more to-do apps
      2 people · 9 points · first shared 2024 · 1 comments on HN
    5. 5
      RSS blogrolls are a federated social network
      2 people · 6 points · first shared 2024 · Discussion on HN
    6. 6
      A mental model for EC2 on-demand pricing
      2 people · 5 points · first shared 2023 · Discussion on HN
    7. 7
      Choosing Vim over VSCode
      1 person · 5 points · first shared 2025 · 4 comments on HN
    8. 8
      Is Email Confidential in Transit Yet?
      2 people · 4 points · first shared 2024 · 3 comments on HN
    9. 9
      Relicencing Monitor
      2 people · 4 points · first shared 2024 · 2 comments on HN
    10. 10
      An HTTP header caused time.gov to skew from UTC
      1 person · 4 points · first shared 2026 · Discussion on HN

    What HN people wrote when they linked it

    • bwblabsJun 2026

      Another quote from the article:

      > Further, native apps can generate a unique self-signed certificate.

      Just creating a certificate will not work, unless it's installed as root CA certificates in all browser trust-stores on the machine. And if the private key of the root CA is not secured correctly, one could MitM any websites. So at least you want it name constrained (https://datatracker.ietf.org/doc/html/rfc5280#section-4.2.1.10), but at least in Chrome until 2023 (v112) that did not work on root CA's (https://alexsci.com/blog/name-non-constraint/), so you had to add an intermediate CA and add the constrain there. Of course, you should also just throw away the key of the root CA.

      I will admit I once added basic constrains in some project with a local root CA (2020-2022), but 'incorrectly' to the root CA, and did not test it in all browsers.

    • 8organicbitsApr 2026

      I've been doing this. Here's an example page: https://alexsci.com/rss-blogroll-network/discover/feed-41e7afd377ae70efdb4606c0d0603e6f/

      I don't like counting the number of subscribers, that ends up surfacing things like major news websites, or the hacker news feed. But I've found the graph to be useful in finding recommendations.

    • freediverAug 2024

      This is cool!

      Is the aggregate list supposed to update regularly?

      https://alexsci.com/rss-blogroll-network/rss.xml

    • FromTheArchivesAug 2025

      Just for you:

      https://alexsci.com/rss-blogroll-network/blogrolls/br-8da940851a665bf7e2ba1a0682fc7fa7/

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