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Aleksander SekowskiSep 1, 2026 • 5 min read
plcmt=5 in the VAST Tag Does Not Make a Linear MP4 a Pause Ad
The CTV Ad Portfolio plcmt signal says what was bought in OpenRTB. The creative still has to land in...
#vast#ctv#adtech#xml
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Aleksander SekowskiAug 28, 2026 • 4 min read
LIFECYCLE_DSP_BID_RESPONSE Can Ship Without bid_response. The Agent Has Nothing to Shade.
ARTF lifecycle tells the agent which auction stage you are in, not which OpenRTB document is on the ...
#grpc#openrtb#adtech#api
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Aleksander SekowskiSep 3, 2026 • 3 min read
OpenRTB 3.0 Placement With Only tagid Has No AdCOM Subtype
AdCOM Placement, Ad, and Asset objects are polymorphic: at least one of display, video, or audio mus...
#openrtb#adtech#json#advertising
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Aleksander SekowskiAug 27, 2026 • 5 min read
AAMP Can Finish a Video Buy With a Wrapper. It Cannot Prove the InLine Exists.
IAB Tech Lab's agent stack keeps VAST as the video envelope, but a buyer agent that holds a tag URI ...
#vast#adtech#advertising#api
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Aleksander SekowskiAug 31, 2026 • 4 min read
MCP validate_bid_request Defaults to profile spec. Google AB Needs at: 3 and billing_id.
The RTBlint MCP tool validates against the OpenRTB specification unless you pass profile. Google Aut...
#openrtb#api#adtech#grpc
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keyboardTester.ClickAug 30, 2026 • 4 min read
What My First $2.18 AdX MCM Day Actually Proved
A live publisher test separating Google Ad Manager gross revenue, the MCM allocation, direct AdSense...
#adsense#adtech#webdev#blogging
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