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HTTP Data Cleanup Triggers: A Recurring Method with Bounded External Work

HTTP Data Cleanup Triggers: A Recurring Method with Bounded External Work

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5 min read
The Request Id Rides Twice: Every API Response Carries It in a Header and in Its Own JSON Body

The Request Id Rides Twice: Every API Response Carries It in a Header and in Its Own JSON Body

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3 min read
The Header-Name Shapes of Our Two Hosts: Four on the App Host, Two on the API Host, Nine Names in Common

The Header-Name Shapes of Our Two Hosts: Four on the App Host, Two on the API Host, Nine Names in Common

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4 min read
Forty Paths a Visitor Is Likely to Type: One Permanent Redirect, One Miss Document and Five Pages Kept Off the Index

Forty Paths a Visitor Is Likely to Type: One Permanent Redirect, One Miss Document and Five Pages Kept Off the Index

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5 min read
The Compression Layer of app.onepassapps.com: gzip, brotli, zstd and the 73% of Bytes We Save

The Compression Layer of app.onepassapps.com: gzip, brotli, zstd and the 73% of Bytes We Save

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5 min read
Byte Ranges on app.onepassapps.com: 60 URLs Ignore Them, 11 Answer Them, and the Split Is Not Pages vs Assets

Byte Ranges on app.onepassapps.com: 60 URLs Ignore Them, 11 Answer Them, and the Split Is Not Pages vs Assets

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5 min read
The Server-Timing Header on All 56 of Our Pages: Where the Time Goes, and Why Page Size Predicts Nothing

The Server-Timing Header on All 56 of Our Pages: Where the Time Goes, and Why Page Size Predicts Nothing

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6 min read
The Extension Rule: Only .html Redirects, and the Live Page Nothing Links To

The Extension Rule: Only .html Redirects, and the Live Page Nothing Links To

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5 min read
The Rate Limit Is Not One Number: 120, 60 and 30 on the Same API Host, and the One Route That Answers 8

The Rate Limit Is Not One Number: 120, 60 and 30 on the Same API Host, and the One Route That Answers 8

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4 min read
The 7.8 KB tracker got an ETag, a 12-hour TTL and an edge HIT. The page got none of them.

The 7.8 KB tracker got an ETag, a 12-hour TTL and an edge HIT. The page got none of them.

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8 min read
The Five Data Files Behind Our Terms Page: 12 MB of JSON, Five ETags and Five 304s

The Five Data Files Behind Our Terms Page: 12 MB of JSON, Five ETags and Five 304s

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5 min read
The Hash in Our Content-Security-Policy: Which Inline Script Does app.onepassapps.com Actually Allow?

The Hash in Our Content-Security-Policy: Which Inline Script Does app.onepassapps.com Actually Allow?

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4 min read
The Tracking-Link Contract of app.onepassapps.com: 56 URLs, One Redirect That Keeps Your Parameters

The Tracking-Link Contract of app.onepassapps.com: 56 URLs, One Redirect That Keeps Your Parameters

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3 min read
The Method Contract of app.onepassapps.com: 56 URLs, One 405

The Method Contract of app.onepassapps.com: 56 URLs, One 405

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3 min read
The Route Contract of app.onepassapps.com: 44 Routes Answer 200, Nine Answer 404, and Case Is Not Folded

The Route Contract of app.onepassapps.com: 44 Routes Answer 200, Nine Answer 404, and Case Is Not Folded

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5 min read
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