Google Ad Manager

Package, weight and click rules of Google Ad Manager.

Used by: Sanoma Media Finland, Kärkimedia

Package rules

Property	Rule	Evidence
Delivery format	zip, html	AOfficial requirement. Evidence details Source Traffic HTML5 creatives (Ad Manager) How verified Read directly Verified 15 Oct 2026 Upload an HTML5 ZIP bundle or a standalone HTML file. Open source ↗
Depth of the primary HTML	≤ 1 folders	AOfficial requirement. Evidence details Source HTML5 guidelines for Ad Manager How verified Read directly Verified 15 Oct 2026 Primary HTML and assets at the ZIP root or in clearly referenced subfolders; don't nest the primary HTML in multiple subdirectories. Open source ↗
ZIP integrity	Valid	AOfficial requirement. Evidence details Source HTML5 guidelines for Ad Manager How verified Read directly Verified 15 Oct 2026 ZIP must not be corrupted. Open source ↗
All referenced files included	Required	AOfficial requirement. Evidence details Source HTML5 guidelines for Ad Manager How verified Read directly Verified 15 Oct 2026 All referenced assets inside the ZIP; relative paths; avoid external hosting of essential components unless supported and allowlisted. Open source ↗
Everything over HTTPS	Required	AOfficial requirement. Evidence details Source HTML5 guidelines for Ad Manager · Traffic HTML5 creatives (Ad Manager) How verified Read directly Verified 15 Oct 2026 HTML5 creatives must be SSL compatible to serve on HTTPS sites (SSL-incompatible creatives can't be previewed and serve only on HTTP). Open source ↗
<meta name="ad.size">	Required	AOfficial requirement. Evidence details Source HTML5 guidelines for Ad Manager How verified Read directly Verified 15 Oct 2026 Define dimensions with <meta name="ad.size" content="width=[x],height=[y]">. Open source ↗
Ad size	Fixed	AOfficial requirement. Evidence details Source HTML5 guidelines for Ad Manager How verified Read directly Verified 15 Oct 2026 Only fixed dimensions (e.g. 300x250); Fluid and other dynamic sizes are not supported. Open source ↗
GWD minimum width and height	> 0 px	AOfficial requirement. Evidence details Source HTML5 guidelines for Ad Manager How verified Read directly Verified 15 Oct 2026 In GWD bundles, creativeProperties minWidth and minHeight must be greater than 0. Open source ↗
Google Web Designer environment	display-video-360	AOfficial requirement. Evidence details Source HTML5 guidelines for Ad Manager How verified Read directly Verified 15 Oct 2026 GWD creatives: select the Display & Video 360 environment. Open source ↗ Conflict
Served in	safeframe	AOfficial requirement. Evidence details Source Traffic HTML5 creatives (Ad Manager) How verified Read directly Verified 15 Oct 2026 Ad Manager always serves HTML5 creatives in SafeFrame; JavaScript that accesses the top-level window may not work in preview. Open source ↗

Weight rules

Property	Rule	Evidence
ZIP or unzipped size	≤ 1 MB	AOfficial requirement. Evidence details Source Traffic HTML5 creatives (Ad Manager) How verified Read directly Verified 15 Oct 2026 An HTML5 bundle or the total size of extracted files cannot exceed 1 MB. Open source ↗

Click implementation

Google Ad Manager clickTag

Click variable

clickTag · more areas: clickTag2, clickTag3 · case-sensitive

AOfficial requirement

Source: Ad Manager API: CreativeService.ClickTag (v202511) · HTML5 guidelines for Ad Manager
How verified: Read directly
Verified: 15 Oct 2026

API: click tag names follow the regex clickTag\d*.

Open source ↗

Conflict

Declared in

head

<head>
   <meta name="ad.size" content="width=300,height=250">
   <script type="text/javascript">
      var clickTag = "http://www.google.com";
   </script>
</head>

AOfficial requirement

Source: HTML5 guidelines for Ad Manager
How verified: Read directly
Verified: 15 Oct 2026

Insert click tags in the <head>; no minification or obfuscation of click tags (minify the rest if you like).

Open source ↗

Minimum click tags

AOfficial requirement

Source: Traffic HTML5 creatives (Ad Manager)
How verified: Read directly
Verified: 15 Oct 2026

At least one standard click tag.

Open source ↗

Code pattern

<a href="javascript:void(window.open(clickTag))">

AOfficial requirement

Source: HTML5 guidelines for Ad Manager
How verified: Read directly
Verified: 15 Oct 2026

Use the clickTag variable as the destination.

Open source ↗

Hard-coded landing URLs

Not allowed

AOfficial requirement

Source: HTML5 guidelines for Ad Manager
How verified: Read directly
Verified: 15 Oct 2026

Hard-coded URLs prevent click tracking and URL updates; Ad Manager warns on upload.

Open source ↗

Precedence

Ad-level click-through settings override creative click tags; URLs can be changed after upload

AOfficial requirement

Source: HTML5 guidelines for Ad Manager
How verified: Read directly
Verified: 15 Oct 2026

Precedence.

Open source ↗

Google Web Designer exits (Ad Manager)

Click variable

null

AOfficial requirement

Source: Limitations of GWD HTML5 creatives (Ad Manager)
How verified: Read directly
Verified: 15 Oct 2026

GWD bundles don't support click tags; use exit events instead of var clickTag.

Open source ↗

Exits (Google Web Designer)

1–100

AOfficial requirement

Source: Limitations of GWD HTML5 creatives (Ad Manager)
How verified: Read directly
Verified: 15 Oct 2026

At least one exit, up to 100; no landing URL needed in code; the URL is supplied after upload.

Open source ↗

Sources

Traffic HTML5 creatives (Ad Manager) · GoogleRead directly · 15 Oct 2026
HTML5 guidelines for Ad Manager · GoogleRead directly · 15 Oct 2026
Ad Manager API: CreativeService.ClickTag (v202511) · GoogleRead directly · 15 Oct 2026
Limitations of GWD HTML5 creatives (Ad Manager) · GoogleRead directly · 15 Oct 2026