Quick quality check HTML5 files

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

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

News

Stay ahead of the curve

Curious about the latest in marketing and advertising?
Subscribe to our monthly Promarketers newsletter.

May 8, 2026

Brazil votes. Cape.io already knows what that means.

Cape.io has powered Brazil's general elections for four editions, managing 500 channels and 155 million voters. Here's how we do it.

Apr 23, 2026

Agentic AI vs AI wrappers vs custom AI: How to choose your path

You're about to spend $500K on an AI initiative. You've got 3 options on the table, and they'll lead you to wildly different places. Pick wrong, and you're rebuilding in 18 months. Pick right, and you'll have a system that scales, costs less to maintain, and actually does what executives promised.

The choice is between wrapping existing AI models, building custom AI solutions from scratch, or going agentic. Most teams don't understand the real trade-offs until they're locked into the wrong one.

Mar 30, 2026

Operationalizing AI in advertising: Why it must be embedded, not bolted on

Operationalizing AI in advertising isn’t about adding another tool to your stack. It’s about embedding intelligence into the systems that govern creative production, compliance, and delivery, so automation scales without creating more operational friction.

Mar 18, 2026

No more chocolate at breakfast? Navigating the new LHF ad rules this Easter

As ad compliance requirements evolve in 2026, UK confectionery brands face new restrictions on less healthy food (LHF) advertising. With the January 5 watershed now in effect, ad quality assurance systems must validate timing, placement, and product identifiability to avoid clearance failures this Easter season.

Mar 16, 2026

The future of inclusion: How Cape.io powered Virgin Media Television’s fully accessible ad break during the Men’s Six Nations

As Channel 4’s closed-captioning mandate came into effect in March 2026, Cape.io partnered with Virgin Media Television, Omnicom Media Group and VoiceBox to deliver a truly accessible ad break during the Guinness Men’s Six Nations. More than ad compliance, this moment proved that accessibility can operate at the highest level of live sports broadcasting.

Feb 27, 2026

Navigating Channel 4’s 2026 closed caption mandate

As ad compliance requirements tighten across the UK and Europe, closed captioning has evolved from an accessibility checkbox to a strategic necessity. Whether you're managing CTV campaigns or social media creative, automated ad testing for caption quality is no longer optional - it's fundamental to reaching today's fragmented, multi-screen audiences.

The advertising landscape is facing a seismic shift. By March 1, Channel 4 will become the first UK broadcaster to mandate closed captions across all advertising - including linear TV, streaming, and sponsorships.

The mandate is  a redefined standard for global inclusivity. Here is everything you need to know about the new mandate and how to stay ahead of the curve.

News

Stay ahead of the curve

Curious about the latest in marketing and advertising?
Subscribe to our monthly Promarketers newsletter.

May 8, 2026

Brazil votes. Cape.io already knows what that means.

Cape.io has powered Brazil's general elections for four editions, managing 500 channels and 155 million voters. Here's how we do it.

Apr 23, 2026

Agentic AI vs AI wrappers vs custom AI: How to choose your path

You're about to spend $500K on an AI initiative. You've got 3 options on the table, and they'll lead you to wildly different places. Pick wrong, and you're rebuilding in 18 months. Pick right, and you'll have a system that scales, costs less to maintain, and actually does what executives promised.

The choice is between wrapping existing AI models, building custom AI solutions from scratch, or going agentic. Most teams don't understand the real trade-offs until they're locked into the wrong one.

Mar 30, 2026

Operationalizing AI in advertising: Why it must be embedded, not bolted on

Operationalizing AI in advertising isn’t about adding another tool to your stack. It’s about embedding intelligence into the systems that govern creative production, compliance, and delivery, so automation scales without creating more operational friction.

Mar 18, 2026

No more chocolate at breakfast? Navigating the new LHF ad rules this Easter

As ad compliance requirements evolve in 2026, UK confectionery brands face new restrictions on less healthy food (LHF) advertising. With the January 5 watershed now in effect, ad quality assurance systems must validate timing, placement, and product identifiability to avoid clearance failures this Easter season.

Mar 16, 2026

The future of inclusion: How Cape.io powered Virgin Media Television’s fully accessible ad break during the Men’s Six Nations

As Channel 4’s closed-captioning mandate came into effect in March 2026, Cape.io partnered with Virgin Media Television, Omnicom Media Group and VoiceBox to deliver a truly accessible ad break during the Guinness Men’s Six Nations. More than ad compliance, this moment proved that accessibility can operate at the highest level of live sports broadcasting.

Feb 27, 2026

Navigating Channel 4’s 2026 closed caption mandate

As ad compliance requirements tighten across the UK and Europe, closed captioning has evolved from an accessibility checkbox to a strategic necessity. Whether you're managing CTV campaigns or social media creative, automated ad testing for caption quality is no longer optional - it's fundamental to reaching today's fragmented, multi-screen audiences.

The advertising landscape is facing a seismic shift. By March 1, Channel 4 will become the first UK broadcaster to mandate closed captions across all advertising - including linear TV, streaming, and sponsorships.

The mandate is  a redefined standard for global inclusivity. Here is everything you need to know about the new mandate and how to stay ahead of the curve.

News

Stay ahead of the curve

Curious about the latest in marketing and advertising?
Subscribe to our monthly Promarketers newsletter.

May 8, 2026

Brazil votes. Cape.io already knows what that means.

Cape.io has powered Brazil's general elections for four editions, managing 500 channels and 155 million voters. Here's how we do it.

Apr 23, 2026

Agentic AI vs AI wrappers vs custom AI: How to choose your path

You're about to spend $500K on an AI initiative. You've got 3 options on the table, and they'll lead you to wildly different places. Pick wrong, and you're rebuilding in 18 months. Pick right, and you'll have a system that scales, costs less to maintain, and actually does what executives promised.

The choice is between wrapping existing AI models, building custom AI solutions from scratch, or going agentic. Most teams don't understand the real trade-offs until they're locked into the wrong one.

Mar 30, 2026

Operationalizing AI in advertising: Why it must be embedded, not bolted on

Operationalizing AI in advertising isn’t about adding another tool to your stack. It’s about embedding intelligence into the systems that govern creative production, compliance, and delivery, so automation scales without creating more operational friction.

Mar 18, 2026

No more chocolate at breakfast? Navigating the new LHF ad rules this Easter

As ad compliance requirements evolve in 2026, UK confectionery brands face new restrictions on less healthy food (LHF) advertising. With the January 5 watershed now in effect, ad quality assurance systems must validate timing, placement, and product identifiability to avoid clearance failures this Easter season.

Mar 16, 2026

The future of inclusion: How Cape.io powered Virgin Media Television’s fully accessible ad break during the Men’s Six Nations

As Channel 4’s closed-captioning mandate came into effect in March 2026, Cape.io partnered with Virgin Media Television, Omnicom Media Group and VoiceBox to deliver a truly accessible ad break during the Guinness Men’s Six Nations. More than ad compliance, this moment proved that accessibility can operate at the highest level of live sports broadcasting.

Feb 27, 2026

Navigating Channel 4’s 2026 closed caption mandate

As ad compliance requirements tighten across the UK and Europe, closed captioning has evolved from an accessibility checkbox to a strategic necessity. Whether you're managing CTV campaigns or social media creative, automated ad testing for caption quality is no longer optional - it's fundamental to reaching today's fragmented, multi-screen audiences.

The advertising landscape is facing a seismic shift. By March 1, Channel 4 will become the first UK broadcaster to mandate closed captions across all advertising - including linear TV, streaming, and sponsorships.

The mandate is  a redefined standard for global inclusivity. Here is everything you need to know about the new mandate and how to stay ahead of the curve.

Get in touch

Let us show you what Cape.io can do.

Intelligent Campaign Automation

Cape.io connects up your team, DAM, ad servers, DSPs, tools, and more, so you don’t need to rip and replace.

Copyright © 2026 Cape.io all rights reserved

English

Get in touch

Let us show you what Cape.io can do.

Intelligent Campaign Automation

Cape.io connects up your team, DAM, ad servers, DSPs, tools, and more, so you don’t need to rip and replace.

Copyright © 2026 Cape.io all rights reserved

English

Get in touch

Let us show you what Cape.io can do.

Intelligent Campaign Automation

Cape.io connects up your team, DAM, ad servers, DSPs, tools, and more, so you don’t need to rip and replace.

Copyright © 2026 Cape.io all rights reserved

English