CloudBrumDecision-Support Platform

The Cerebrum for Cloud Service Decisions

Traditional documentation shows you how to configure. CloudBrum helps architects and developers decide what to choose, why to use it, and what to watch for — security threats, cost, performance and carbon — across AWS, Azure and GCP, before writing a single line of IaC.

Search & Explore Services Knowledge Base Consult with our cloud architects

17-Point Decision Framework

Covered on every service page

Learn

2
  • 1Key Features (Summary)
  • 2Basic Concepts

Build

2
  • 3Create & Configure Steps
  • 4Common Issues After Setup

Decide

2
  • 5Use Cases
  • 6Pros

Evaluate

3
  • 7Threats, Vulnerabilities & Risks
  • 8Performance Optimization
  • 9Cost Optimization

Govern

3
  • 10Security Optimization
  • 11Governance & Compliance
  • 12Reduce Carbon Footprint

Explore

5
  • 13Pricing
  • 14Important Code References
  • 15Best Videos
  • 16Interview Questions
  • 17Alternatives on Other Clouds

One service, 17 lenses — evaluated before you deploy.

Search Any Cloud Service Across AWS, Azure & GCP

Instantly access 17 detailed decision sections including Security Risks, Cost Optimization, Code Examples & Interview Prep.

Popular Services: Amazon EC2 AWS Lambda Azure Cosmos DB Azure App Service Google Cloud Run GCP BigQuery

Browse by Cloud Provider

Pick a cloud, explore its service categories, then open any service for the full 17-point analysis.

Amazon Web Services

86 services
ComputeStorageDatabaseNetworkingSecurityAI / ML+ more
Popular: EC2 · S3 · Lambda · RDS
Explore AWS services

Microsoft Azure

78 services
ComputeStorageDatabasesNetworkingSecurityAI + ML+ more
Popular: Virtual Machines · Blob Storage · Cosmos DB
Explore Azure services

Google Cloud Platform

75 services
ComputeStorageDatabasesNetworkingSecurityAI / ML+ more
Popular: Compute Engine · Cloud Storage · BigQuery
Explore GCP services
Knowledge base coverage
239services listed across AWS, Azure & GCP, 59 full guides live so far
86AWS services
78Azure services
75GCP services
584Interview Q&As
17Decision points per guide
8Videos

Our Cloud Tools

Simple tools that help you pick the right cloud service, plan your move to the cloud and see how real systems are built.

Service SuggesterLive

Not sure which cloud service to use?

Type what you want to build in plain words, such as “host a website” or “send OTP messages”. The Service Suggester shows the matching AWS, Azure and Google Cloud service for each need, side by side.

  • Matching services on AWS, Azure and Google Cloud
  • Warnings when a service is closing or changing
  • A summary you can share with your team
Try
SMS, push notifications and OTP
AWSAWS End User Messaging
AzureAzure Communication Services
Google CloudFirebase Cloud Messaging
Mobile or web app back end
AWSAWS Amplify
AzureAzure Functions + Azure Cosmos DB
Google CloudFirebase
Customer sign-up and login
AWSAmazon Cognito
AzureMicrosoft Entra External ID
Google CloudIdentity Platform
Web app or API hosting
AWSAWS Elastic Beanstalk
AzureAzure App Service
Google CloudCloud Run
Publish and secure APIs
AWSAmazon API Gateway
AzureAzure API Management
Google CloudAPI Gateway
Relational database
AWSAmazon RDS
AzureAzure SQL Database
Google CloudCloud SQL
Chatbot or Q&A over your own documents
AWSAmazon Bedrock Knowledge Bases
AzureAzure AI Search + Azure OpenAI
Google CloudAgent Search
Object storage
AWSAmazon S3
AzureAzure Blob Storage
Google CloudCloud Storage
Generative AI models through an API
AWSAmazon Bedrock
AzureAzure OpenAI in Microsoft Foundry Models
Google CloudGemini Enterprise Agent Platform
Disaster recovery and failover
AWSAWS Elastic Disaster Recovery
AzureAzure Site Recovery
Google CloudBackup and DR Service
Backup and restore
AWSAWS Backup
AzureAzure Backup
Google CloudBackup and DR Service

Edit the sentence and press Suggest to get the answer for your own idea.

Use it when you are starting a project and do not know which cloud service fits, or you want the Azure or Google Cloud match for an AWS service.

Try the Service Suggester

Migration Readiness CheckerLive

Planning to move to the cloud?

Answer 27 simple questions about your servers, data, security, people and budget. You get a readiness score, the gaps to fix first and a sensible way to start your move.

  • A score from 0 to 100
  • The gaps to fix first, most important first
  • A rough way to start your move
50out of 100

Needs preparationSeveral important pieces are missing. A short assessment and planning phase will save time and money later.

Do you have an up-to-date list of every server, database and application you plan to move?

Do you have working backups, with a restore you have actually tested, for the systems you will move?

Do you have a rollback plan if a cutover goes wrong?

Do this first: For each cutover, write the exact steps and the deadline for going back, and keep the old system until the new one is proven.

Tap an answer to see how the score changes. This is 3 of the 27 questions in the full checklist.

Use it when you want to know if your team is ready before you spend time and money on a migration.

Check my readiness

Usecases & Cloud Architectural BlueprintsLive

Want to see how a real system is built?

Pick a use case, such as a web app, an API or an AI chatbot. See the building blocks, how they connect, and the AWS, Azure and Google Cloud service for each block.

  • Step by step: how a request flows through the system
  • What to keep in mind, and common variations
  • Answers to common questions
UserOpens your site in a browserOpens your site in a browserOpens your site in a browserOpens your site in a browser
CDNDelivers files near the userAmazon CloudFrontAzure Front DoorCloud CDN
App platformRuns your application codeAWS Elastic BeanstalkAzure App ServiceCloud Run
DatabaseKeeps customer and order dataAmazon RDSAzure SQL DatabaseCloud SQL
Also in this blueprintDomain namePoints your address at the siteAmazon Route 53Azure DNSCloud DNSFile storageUploads and downloadsAmazon S3Azure Blob StorageCloud StorageSign-inRegisters and signs in usersAmazon CognitoMicrosoft Entra External IDIdentity Platform
ClientA web app, mobile app or partner systemA web app, mobile app or partner systemA web app, mobile app or partner systemA web app, mobile app or partner system
API front doorChecks, limits and routes callsAmazon API GatewayAzure API ManagementAPI Gateway
API platformRuns your API codeAWS Elastic BeanstalkAzure App ServiceCloud Run
DatabaseKeeps the dataAmazon RDSAzure SQL DatabaseCloud SQL
Also in this blueprintSign-inIssues and checks user tokensAmazon CognitoMicrosoft Entra External IDIdentity PlatformSecretsStores keys and passwordsAWS Secrets ManagerAzure Key VaultSecret Manager
Mobile appYour iOS or Android appYour iOS or Android appYour iOS or Android appYour iOS or Android app
API front doorChecks and limits callsAmazon API GatewayAzure API ManagementAPI Gateway
Mobile back endApp logic and APIsAWS AmplifyAzure Functions + Azure Cosmos DBFirebase
App databaseDocuments and settingsAmazon DynamoDBAzure Cosmos DBFirestore
Also in this blueprintPush and SMSSends alerts and one-time codesAWS End User MessagingAzure Communication ServicesFirebase Cloud MessagingSign-inRegisters and signs in usersAmazon CognitoMicrosoft Entra External IDIdentity PlatformFile storagePhotos and documentsAmazon S3Azure Blob StorageCloud Storage
Your app or APIChecks who is askingChecks who is askingChecks who is askingChecks who is asking
RetrieveFinds the closest passages this user may seeAmazon OpenSearch ServiceAzure AI SearchVector Search
Language modelWrites the answer from those passagesAmazon BedrockAzure OpenAI in Microsoft Foundry ModelsGemini Enterprise Agent Platform
Safety checksFilters unsafe or attacked input and outputAmazon Bedrock GuardrailsAzure AI Content SafetyModel Armor
Also in this blueprintDocumentsYour PDFs, pages and filesAmazon S3Azure Blob StorageCloud StorageEmbedding modelSplit into passages, turn each into numbersAmazon BedrockAzure OpenAI in Microsoft Foundry ModelsGemini Enterprise Agent PlatformVector indexPassages stored by meaningAmazon OpenSearch ServiceAzure AI SearchVector Search

Same design, any cloud: pick a cloud to see its service in every box.

See the full Web app blueprint

Use it when you need a starting design for your project, or you want to explain a design to your team or manager.

Explore the blueprints

Cloud DetoxComing soon

Paying for cloud things nobody uses?

Cloud Detox will look through your cloud accounts for forgotten items, such as servers nobody uses and storage nobody opens, and help your team switch them off to bring the bill down.

  • Looks for unused servers, disks and storage
  • Lists what could be switched off
  • Asks the owner of each item to clean it up

Scanning your cloud account

  • A server nobody has used for 45 daysIdle
  • A disk not attached to any serverUnused
  • An old test databaseForgotten
  • Files nobody has opened in a yearUnused

4 things you could switch off

An illustration of the planned tool. Cloud Detox is not available yet.

Use it when your cloud bill keeps growing and you do not know why.

Coming soonNeed help with cloud costs now? Ask an expert

How CloudBrum Solves Real Cloud Challenges

Proactive architectural decision-making before deployment — eliminating costly mistakes later.

Threat Remediation

01
Challenge

Cloud services often harbor hidden risks discovered only after production security breaches.

CloudBrum Solution

Surfaces known threats, vulnerabilities, and hardening rules prior to configuration.

Security Optimization

02
Challenge

Permissive IAM policies, exposed public storage, and unencrypted parameters create attack vectors.

CloudBrum Solution

Delivers step-by-step IAM least-privilege guides and network hardening checklists.

Cost Optimization

03
Challenge

Unpredictable cloud bills caused by overprovisioning, orphan resources, and incorrect pricing tiers.

CloudBrum Solution

Provides concrete monthly cost-saving tactics, reserved instance guidance, and rightsizing tips.

Performance Optimization

04
Challenge

Slow response times, throttling, and bottlenecks caused by wrong instance types, missing caching, and unplanned scaling limits.

CloudBrum Solution

Shares performance tuning checklists, benchmarking tips, caching and autoscaling patterns for each service.

Reliability & Downtime

05
Challenge

Outages caused by single-region deployments, missing failover configurations, and inadequate backups.

CloudBrum Solution

Offers proven multi-AZ/multi-region design blueprints and troubleshooting strategies for common errors.

Governance & Compliance

06
Challenge

Inconsistent tagging, lack of enterprise standards, and compliance audit failures (GDPR, SOC2, HIPAA).

CloudBrum Solution

Maps each service directly to organizational policy guardrails and compliance controls.

Carbon Footprint

07
Challenge

High energy consumption from inefficient region choices and unoptimized instance lifecycles.

CloudBrum Solution

Guides teams toward green region choices and sustainable architecture practices.

Lack of Expertise

08
Challenge

Teams and developers often lack deep cloud experience, so issues drag on and wrong decisions slip into production.

CloudBrum Solution

Gives you access to veteran cloud experts for guidance, reviews, and help with any issue or situation, backed by curated interview Q&As and real-world fixes.

Why CloudBrum is Different

Comparing traditional documentation with decision-grade intelligence

Standard Approach

Traditional Cloud Docs

  • Primary Focus How to build & API syntax only
  • Threats & Security Minimal or scattered vulnerability guidance
  • Cost & FinOps Basic pricing tables without reduction strategy
  • Cross-Cloud Mappings Single vendor lock-in mindset
  • Career & Skill Building No interview Q&As or scenario tests
Decision Engine

CloudBrum Platform

  • Decision Support What, why, & when to choose each service
  • Dedicated Threat Analysis Proactive risk identification & hardening
  • Actionable FinOps Concrete monthly savings & sizing steps
  • Direct Multi-Cloud Mapping Equivalent mappings for AWS, Azure & GCP
  • Interactive Career Hub Interview Q&As and code samples in every guide

Who Is CloudBrum For?

Whether you decide, design, build, secure or interview for cloud roles, there is a lens made for you.

Decision-makers & Leaders

Technical, management or executive: decide which cloud to use, and whether and when to move, with cost, risk and rules in view.

  • Free tier, cost & FinOps checks
  • Security, governance & compliance
  • Migration readiness & patterns

Cloud Architects

Choose the right service with confidence before the design is locked.

  • Use cases & pros
  • Cross-cloud alternatives
  • Pricing & governance

Developers

Set up services correctly and fix the usual issues faster.

  • Step-by-step configuration
  • Common issues after setup
  • Important code references

DevOps, Security & FinOps

Harden, optimise and keep cloud spend and risk under control.

  • Threats & security optimisation
  • Cost & performance tips
  • Compliance & carbon

Learners & Interviewees

Understand the concepts and prepare for real interview questions.

  • Basic concepts
  • Interview questions
  • Best videos to explore

Latest Additions & Updates

Fresh service pages and recently refreshed analyses.

Get Articles in Your Inbox

Subscribe to receive new and updated service articles as a PDF, straight to your email.

  • PDF of each article
  • New service alerts
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Ask the Experts

Stuck on a design, cost or security decision? Our veteran cloud experts can help.

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Frequently Asked Questions

Quick answers about CloudBrum.

What is CloudBrum, and how is it different from official cloud docs?

CloudBrum is a cloud decision-support knowledge base. Official docs mostly explain how to build; CloudBrum also helps you decide whether, when and how to use a service by covering threats, cost, performance, governance and carbon in one place.

What are the 17 decision points on every service page?

Each service page covers key features, basic concepts, how to create and configure it, common issues after setup, use cases, pros, threats and risks, performance, cost, security, governance, carbon footprint, pricing, code references, best videos, interview questions and alternatives on other clouds.

Which cloud providers and services are covered?

AWS, Microsoft Azure and Google Cloud Platform. Start from the provider pages to browse services by category, or use search to jump straight to a service.

Can I compare the same service across AWS, Azure and GCP?

Yes. Every service page ends with similar or alternative services from the other providers, so you can compare options side by side.

Are the CloudBrum tools free to use?

The Service Suggester, the Migration Readiness Checker and the Usecases & Cloud Architectural Blueprints are all free, with no sign-up. The Suggester and the Readiness Checker run in your browser, and what you type is not sent anywhere unless you choose to contact us. A fourth tool, Cloud Detox, is coming soon.

Can I get an article as a PDF?

Yes. Service pages offer a way to receive the article as a PDF in your inbox, and you can subscribe above to get new articles automatically.

I found an error or want a topic added. What should I do?

Use the feedback or “report an issue” option on any page, or send a question through Ask the Experts. We review every report.