Acquia Site Factory provides a platform for creating and managing Drupal multisite deployments on top of Cloud Platform Enterprise, with an administrative console for web and API management and Factory Stacks, which are managed Drupal code platforms with dedicated infrastructure.[1] Multi-Experience Operations (MEO) is a newer Acquia offering for organizations that manage multiple digital experiences through a shared codebase, offered in four tiers called Standard, Plus, Premium and Elite.[2] Both products measure the number of sites and the volume of traffic, but with different units and tolerances, and a licence manager should not carry assumptions from one to the other.
Editions
Site Factory tiers
The Site Factory guide lists two families of standard subscription entitlements, each including an initial Factory Stack.[1] The Enterprise family is defined by the maximum number of websites and Page Views per month:
| Tier | Maximum websites | Page Views per month |
|---|---|---|
| Enterprise 10 (formerly Starter) | 10 | 100K |
| Enterprise 25 (formerly Small) | 25 | 250K |
| Enterprise 100 | 100 | 1M |
| Enterprise 150 (formerly Medium) | 150 | 3M |
| Enterprise 200 | 200 | 4M |
| Enterprise 250 (formerly Large) | 250 | 5M |
| Enterprise 375 | 375 | 7.5M |
| Enterprise 500 | 500 | 10M |
| Enterprise 750 | 750 | 15M |
| Custom | Custom | Custom |
The SMB family is aimed at small sites, with databases of no more than 200 MB and file storage of no more than 500 MB per site. SMB 25 allows 25 websites with fewer than 80K Page Views per month, SMB 100 allows 100 websites with fewer than 800K, SMB 300 allows 300 with fewer than 1.2M, SMB 600 allows 600 with fewer than 1.6M and SMB 900 allows 900 with fewer than 4M.[1]
Every tier includes unlimited Acquia product support and unlimited Drupal support tickets, twelve advisory hours, and, for Enterprise tiers, a one-hour 24x7 critical response SLA. The guide also lists maximums of 850K search queries per month, a 2500 MB index and 250K documents per subscription.[1] An optional Elite add-on can upgrade any tier to unlimited tickets, sixteen advisory hours, a thirty-minute 24x7 critical response and larger search limits of 4200K queries, a 5000 MB index and 500K documents.[1]
Multi-Experience Operations tiers
The MEO guide states that the tier changes the support level only: all four tiers include one codebase, five sites, one production environment and two non-production environments per codebase.[2] Additional Views, Sites, Non-Production Environments and Storage are add-ons purchased at subscription level that can be used with whichever codebase the customer wishes.[2] The guide calls the table of base entitlements “proposed”, so Order Forms should be treated as authoritative.[2]
Metrics
Site Factory website
The Site Factory website is defined in a footnote to the tier table: a “website” or “site” is the combination of a distinct custom domain and the distinct content uniquely associated with that domain. The limit does not apply to secondary or “vanity” domains that redirect to, or render the exact same content as, the primary domain.[1] A Site Studio licence is required for each site so defined, and also where the production site is simply an HTML scrape of a staging site, for the staging URL.[1] The Subscription Usage page of the management console shows the number of websites with custom domains on the live and update environments, which are the websites that count against the maximum; a Factory Stack has those two environments so that sites stay up during code deployment.[3]
Page View and Dynamic Request
The guide notes that Page Views are commonly referred to as Dynamic Requests, and that where an Order Form mentions Page Views Acquia measures them using Dynamic Requests.[1] Dynamic Requests include all requests served by Drupal: successful page loads, redirections, image derivative generations, page not founds and failed page loads. They exclude requests served from Varnish cache or a CDN, and requests for images, files and other assets served without further processing. They include all requests on a production environment regardless of whether the traffic goes to live or update, with data available after up to a two-day delay, and can be downloaded as CSV or obtained from the Site Factory REST API.[3] For billing the guide says page views are calculated as requests to the customer’s application on the Site Factory servers as counted by industry standard means, such as logs, CDN-forwarded requests or trackers, “or as may otherwise be reasonably determined by Acquia.”[1]
The Page View definition therefore differs from the Cloud Platform View, which excludes redirects and errors and is counted at the Varnish layer including cached responses that bootstrapped Drupal.[4]
Codebase
MEO’s Codebase is defined in Acquia’s glossary as one set of Drupal code and files powering one or more websites.[5] In MEO, Views are the traffic measure: a View is a request made to the customer’s application, excluding static files, and only successful responses count; redirects, client errors, server errors and option requests are excluded.[2]
Search Query
Search limits attached to Site Factory use the glossary’s Search Query: a single Solr request made by Drupal to retrieve content from the customer’s index.[5]
Counting and floors
Factory Stacks
Additional Factory Stacks can be added to a subscription. Each stack carries its own Page Views per month, maximum number of sites and Drupal support tickets, and entitlements are not shared across stacks. If a stack in a multi-stack subscription grows larger than the main stack, it becomes the main stack and the price remains the same; the guide’s example is a customer that buys Stack 1 as the main stack for 100 sites and Stack 2 for 25 sites, and later moves 100 sites to Stack 2.[1]
Starter tiers
The guide states that an Enterprise 10 or Enterprise 25 subscription is for new Site Factory customers only and must be part of a multi-year subscription, and that after the first year it must increase to Enterprise 100 or greater. SMB 25 and SMB 50 follow the same restriction with SMB 100 as the target.[1] This is the Site Factory multi-year starter tiers program in the catalog.
Traffic overages in Site Factory
If actual usage exceeds the capacity entitlement on the Order Form, Acquia can invoice overage fees from its then-current commercial price book, billed monthly in arrears. A single month under 20% over the limit is forgiven if usage then falls below the limit, but exceeding the limit by any amount for two consecutive months makes overages applicable at the stated rate and the customer also pays the backdated amount. Acquia reserves the right to invoice at the end of each month if the customer is over 20% and has not responded to communications.[1] The initial three-month Overage Forgiveness Period applies unless inaccurate information was provided to Acquia for sizing.[1]
Best practices as conditions
The Site Factory guide treats certain practices as customer responsibilities: a PHP memory limit no greater than 256 MB for each website, no more than 1000 files per filesystem directory with an average of no more than 5 GB of file storage per website, and PHP response times of no more than one second.[1] Consistently reaching capacity or deviating significantly from best practices may lead Acquia to restrict use of the platform and support, and the customer must keep the Site Factory Connector module no more than three versions behind the latest stable version.[1]
MEO traffic overages and resource limits
MEO adopts the Cloud Platform traffic tolerance: a 30% capacity buffer, mandatory upgrade at renewal where the entitlement was exceeded in four or more of the last twelve months, and a three-month Overage Forgiveness Period from the beginning of production traffic.[2] The MEO guide carries the same Views, CCU and bandwidth table as Cloud Platform (for example 100,000 Views at 10 CCU and 2 TB, and 10,000,000 Views at 55 CCU and 10 TB), with CCU limits stated on Order Forms above 20 million Views.[2] Resource Limit breaches not visible in the user interface carry a 60-day window after notice, and Acquia may unilaterally increase limits or allocate a Performance Boost at its then-current rates.[2]
MEO storage follows the four-bucket structure of Cloud Next: filesystem and database, each for production and for a shared non-production pool in which only the highest-usage non-production environment counts. The guide notes that MEO storage metrics are available at subscription and environment level and that per-codebase and per-site breakdowns are not available in the current release.[2]
Virtualization and partitioning
Both products are hosted. Site Factory separates a stack into live and update environments, and a “website” is counted by custom domain and content, not by database or server instance.[3][1] In MEO the unit of code deployment is the codebase, and sites share it, so a subscription with many sites per codebase does not need more codebases.[2]
Cloud and BYOL
Site Factory leverages the Cloud Platform Enterprise platform and runs in major regions and availability zones with replicated architecture; hourly disaster recovery snapshots are retained on a diminishing schedule for three months, and backups older than 365 days may be deleted.[1] MEO’s network isolation, private SSH, VPN egress and VPC peering features are described in its Enterprise Security Package section, with network isolation supporting up to one hundred environments, and with Platform CDN limited to 200 GB, ten domains and ten certificates per subscription.[2] Neither product allows customers to bring their own licence; the Subscription and Services Agreement treats Drupal and customer code as Customer Applications that the customer owns or licenses directly from a third party.[6]
Programs
Site Factory and MEO have no partner or volume program in the guides reviewed. The tolerance and forgiveness constructs are described above. Site Factory and MEO each may include a one-site Site Studio licence, which Acquia provisions on request after the customer supplies the subscription and environment name.[1][2] The Site Factory, Cloud Platform and MEO guides also describe included New Relic APM, subject to limits and overage rules: MEO subscriptions are capped at 100 GB of data ingest and 100,000 APM Pro events per month, and Site Factory at 250 GB and five million events with 9000 Synthetics checks.[2][1]
Out of scope
This article does not cover single-site Cloud Platform subscriptions, Acquia Site Studio as a product, Acquia Search pricing or Drupal itself. The Site Factory guide was last updated on 2025-05-20 and some figures may have changed since; the MEO guide refers to base entitlements as proposed. Order Forms control.