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One rule in our Next config caches a folder we do not have for a year, and the only thing it caches is a redirect to the login form

One rule in our Next config caches a folder we do not have for a year, and the only thing it caches is a redirect to the login form

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5 min read
A shared cache decides whether an authenticated page is private, and `Vary` is the header that says so

A shared cache decides whether an authenticated page is private, and `Vary` is the header that says so

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4 min read
`Content-Disposition` decides a filename, and the filename is where a download becomes a write

`Content-Disposition` decides a filename, and the filename is where a download becomes a write

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4 min read
Do URL shorteners hurt SEO? What actually happens with 301s, 302s and link equity

Do URL shorteners hurt SEO? What actually happens with 301s, 302s and link equity

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2 min read
You Downloaded a .webp and Nothing Opens It. What Happened and 3 Ways Out

You Downloaded a .webp and Nothing Opens It. What Happened and 3 Ways Out

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3 min read
2026 Payment Reconciliation Scheduling: HTTP Triggers Without an Internal Executor

2026 Payment Reconciliation Scheduling: HTTP Triggers Without an Internal Executor

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7 min read
Signed requests and agent identity in AAuth

Signed requests and agent identity in AAuth

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5 min read
Understanding HTTP Request Payloads: JSON, Form-Data, and URL-Encoded

Understanding HTTP Request Payloads: JSON, Form-Data, and URL-Encoded

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3 min read
ETag, Last-Modified and 304s: let Googlebot recrawl what actually changed

ETag, Last-Modified and 304s: let Googlebot recrawl what actually changed

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5 min read
Python got a 403 and curl didn't. It came down to one case-sensitive string

Python got a 403 and curl didn't. It came down to one case-sensitive string

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5 min read
How HTTP Status Codes Make APIs Easier to Understand

How HTTP Status Codes Make APIs Easier to Understand

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1 min read
SSE vs WebSockets for AI apps: ten web standards and two patterns

SSE vs WebSockets for AI apps: ten web standards and two patterns

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6 min read
Your CDN says HIT. Here's what that doesn't tell you

Your CDN says HIT. Here's what that doesn't tell you

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6 min read
ERR_TOO_MANY_REDIRECTS: How to Find and Fix a Redirect Loop

ERR_TOO_MANY_REDIRECTS: How to Find and Fix a Redirect Loop

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3 min read
Repeat visitors shouldn't re-download your logo: Cache-Control headers for small-business sites in 10 minutes

Repeat visitors shouldn't re-download your logo: Cache-Control headers for small-business sites in 10 minutes

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2 min read
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