Bunny.net, 4ALLPORTAL, Contentstack, Kontainer

Side by side on what we have verified on each vendor’s own pages. Where a fact was not checked, the table says so rather than leaving a blank that reads as “no”.

What decides it · Runs on your own servers

If the files genuinely cannot leave your infrastructure, this is not a close race — the platforms marked No below should not be on the call at all.

Bunny.net

4ALLPORTAL

Yes

Contentstack

Kontainer

Everything else

Bunny.net

4ALLPORTAL

Contentstack

Kontainer

Verdict

A CDN and edge-computing platform bundling storage, video streaming, DNS and image optimization, aimed at developers and cost-conscious teams as an alternative to larger CDN providers.

A DAM and PIM platform for mid-sized and enterprise companies with complex product data, not built for small teams.

An enterprise headless CMS and composable DXP for developer-led teams needing multi-channel content delivery, with a native asset-management module that's newer and thinly reviewed.

A Nordic/European DAM, with optional PIM, aimed at mid-market brand, retail and ecommerce teams wanting fast onboarding without heavy IT involvement, backed by a 30-day no-commitment trial.

Price published

Yes

Billed on

Primarily pay-as-you-go per GB of bandwidth/storage (CDN from $0.01/GB standard, volume network from $0.005/GB down to $0.002/GB; Storage from $0.01/GB standard tier, $0.02/GB edge SSD tier; Stream storage from $0.01/GB and CDN from $0.005/GB), with a $1/month account minimum. Bunny Optimizer is a flat $9.50/month per website (unlimited optimizations). No per-request fees. Enterprise-scale volume (above 2PB) requires contacting sales.

not disclosed — vendor states pricing is individually configured based on feature scope, integrations, hosting, and services; no per-user/per-GB/flat/credit unit is published

Quoted per customer

Depends on configuration; several features are priced separately

Deployment

Cloud

Cloud, On-premise, Hybrid

Cloud

Free plan

Yes

Free trial

Yes

Transparency index

Not checked

30%

20%

Most common complaint

Not checked

A free start exists, but the terms for moving to a paid tier are not on the page

Feature-level add-on pricing makes the final figure hard to anticipate before a quote

“Not checked” means exactly that: we have not verified it, not that the platform lacks it. Every other value was read off the vendor’s own pages on the date shown on each platform page.

What to ask on the demo

One question per platform, drawn from what actually goes wrong with it — not a generic checklist. Vendors run the demo; this hands the agenda back to you.

Contentstack A free start exists, but the terms for moving to a paid tier are not on the page — ask them to answer this in writing before the trial.

Kontainer Feature-level add-on pricing makes the final figure hard to anticipate before a quote — ask them to answer this in writing before the trial.

No email required — the page prints as it stands.