Update: check HTML5 ad files against DSP and ad server specs in Cape Check & Go

Update: check HTML5 ad files against DSP and ad server specs in Cape Check & Go

Cape Check & Go users can now analyse this popular ad file type with ease against DSP and ad server specifications.

Illustration of a ZIP file of stacked banner sizes with an approval tick, on checking HTML5 files

This was originally posted on the Peach website. Find out more about the rebrand from Peach to Cape.io.

HTML5 files are important to many digital ad campaigns but, because they are coded, they can be difficult to preview and check they match the specifications of DSPs and Ad Servers. 

Well, look no further… you can now do just this in Peach Go.
Quality check HTML5 display zip files against the basic specification requirements set out by various ad servers and DSPs like Google DV360, CM360, and The Trade Desk. 

Saving you:

  • Time - avoid the hassle of manually verifying HTML5 files 

  • Reputational damage - Ad content meets all the necessary requirements for various platforms, thus preventing costly errors and rework.

This feature is exclusively available to users with a free Peach Go account. It’s simple to sign up and then you can gain access to all the current functionalities, including the HTML5 quality check tool, which is exclusively available for logged-in users.

Discover it for yourself today

Cape.io Reporting Intelligence dashboard showing campaign metrics at a glance

Sep 24, 2026

Reporting Intelligence: campaign clarity in one click

We are excited to announce that Reporting Intelligence is officially live in Cape Creative Automation.

Digital out-of-home screen showing a pink NEW HOT ad, illustrating programmatic DOOH creative

Aug 17, 2026

Programmatic DOOH creative at scale: how to solve the format bottleneck

DOOH offers brands huge creative potential, from hyper-local messaging to dynamic campaigns triggered by weather, time, and location. But bringing that potential to life means producing an enormous number of creative variations across a fragmented landscape of screen sizes and formats.

Campaign Analytics dashboard in Cape.io showing impressions, clicks, click rate and cost per click

Aug 3, 2026

Campaign Analytics: close the loop on campaign performance

Campaign Analytics is now live in Cape.io.

Auto Cropper interface showing one photo re-cropped automatically into several ad formats

Jun 26, 2026

Auto Cropper: AI powered auto cropping for Creative Automation

Introducing a new AI-powered auto-cropping feature in our Creative Automation solution.

Row of duotone ad creatives under review, illustrating automated ad compliance checks

Oct 7, 2025

Cape.io Compliance: AI powered checks to keep every campaign on the rules

AI-powered ad compliance tool designed to make it easy to stick to the rules around the world

Sidekick AI assistant chat window answering a question about building an After Effects template

Jun 9, 2025

Sidekick: Cape.io's in platform AI assistant for Template and Campaign Designer

Meet Sidekick, the in-platform assistant that removes roadblocks across Cape, from Template Designer to Campaign Designer, with contextual, real-time answers so you can focus on the creative work.

Laptop screen showing the Amazon storefront header, on automating Amazon storefront creation

Mar 11, 2025

Update: create Amazon Brand Stores faster with Cape.io's campaign automation

Creating Amazon Brand Stores shouldn’t be a bottleneck

Manage collaborators dialog showing team members and their uploader, editor and viewer roles

Dec 2, 2024

Update: Cape Advanced TV adds a faster way to manage collaborator lists

Making a list, checking it twice

Nov 19, 2024

Retail media challenges: what advertisers need to know

More retailers are becoming ad platforms, and retail media is now a massive growth opportunity. But it comes with real growing pains. Here's what it is and how to navigate it.

Peach Go workspace showing a grid of uploaded video projects with file sizes and dates

Nov 14, 2024

Update: Cape Check & Go gets a dedicated workspace for upload, QA and previews

The new Cape Check & Go user experience makes it faster to upload, QA, manage, preview and transfer your files — giving you more control and visibility over your campaigns