Cloudflare Durable Objects vs Google Cloud Pub/Sub
Discover how Cloudflare Durable Objects compares to Google Cloud Pub/Sub, and understand which is right for your use case, based on dimensions such as core features, pricing, reliability, and scalability.
What is Cloudflare Durable Objects ?
Cloudflare Durable Objects provides an easy way to manage stateful objects with low-latency access and real-time updates. It enables developers to create collaborative, real-time applications using WebSocket connections, ensuring data persistence and consistent performance across distributed clients.
What is Google Cloud Pub/Sub?
Google Cloud Pub/Sub is a real-time messaging service. Pub/Sub is used for asynchronous messaging between different systems, and services, within your applications. It enables developers to build robust and scalable real-time applications.
Compare Cloudflare Durable Objects and Google Cloud Pub/Sub
Let’s compare Cloudflare Durable Objects and Google Cloud Pub/Sub, looking at key dimensions such as their core features, pricing, integrations, QoS, performance, and security and compliance.
Disclaimer:This comparison was created based on documentation and resources freely available online about Cloudflare Durable Objects and Google Cloud Pub/Sub. The content was last updated on 10 Oct 2024 for Cloudflare Durable Objects and on 1 Aug 2024 for Google Cloud Pub/Sub. Be sure to double-check everything before you make any decisions. If you do find anything incorrect or out of date, then please contact us.
Core features | |||
Pub/Sub messaging | Reduces communication code complexity, simplifying the process of building highly functional and architecturally complex realtime apps. | Cloudflare Durable Objects Partial Cloudflare Durable Objects does not have built-in pub/sub. However, Cloudflare has an MQTT-powered pub/sub service in private beta which can be integrated with Durable Objects. Read more | Google Cloud Pub/Sub Yes |
Chat capabilities | Accelerates the time to implement rich chat experiences with features such as read receipts, typing indicators, and more. | Cloudflare Durable Objects Partial Cloudflare Durable Objects can implement some chat features, but some require additional Cloudflare services or custom development. File sharing would require integration with Cloudflare R2 for file storage. | Google Cloud Pub/Sub No Chat features such as group chat, emojis, and file sharing are not supported by Google Pub/Sub out of the box, which is intended to be used for service-to-service communication. |
Collaboration capabilities | Enables you to quickly integrate realtime collaborative features like live cursors, member location, avatar stacks, and component locking. | Cloudflare Durable Objects Partial Cloudflare Durable Objects can support collaboration capabilities, but require integration with storage services like Cloudflare Workers KV for features like avatar stacks and location data. | Google Cloud Pub/Sub No Google Pub/Sub recommends using other Google services like Firebase Realtime database to build applications that require functionalities like collaboration. Read more |
State sync capabilities | Enables realtime data synchronization across devices and users, ensuring a cohesive and up-to-date user experience. | Cloudflare Durable Objects Yes | Google Cloud Pub/Sub No Google Pub/Sub does not support a state sync feature out of the box, but this can be achieved in combination with a realtime database. |
Presence | Maintaining a view of which users are connected, and their associated metadata, enables their online status to be updated in realtime. | Cloudflare Durable Objects No Cloudflare Durable Objects does not natively support presence; it requires custom implementation. | Google Cloud Pub/Sub No |
Occupancy | High-level metrics about the clients currently connected to a channel make it simple to show things such as connected user count, or display which channels are the most popular. | Cloudflare Durable Objects No | Google Cloud Pub/Sub Yes Google Pub/Sub provides monitoring dashboards that can be used to monitor subscriptions. Subscriptions can also be monitored through the Cloud Monitoring API. Read more |
Message interactions | Enables interaction with previously-sent messages, facilitating the implementation of features like message reactions and threads. | Cloudflare Durable Objects No | Google Cloud Pub/Sub No |
Message history | Enables clients to catch up on missed messages when inactive, ensuring a user doesn’t miss any important messages. | Cloudflare Durable Objects No | Google Cloud Pub/Sub No Pub/Sub can't retrieve acknowledged messages. You can use the Seek feature to mark them as unacknowledged and redeliver them or delete unacknowledged messages. Read more |
Push notifications | Cross-platform push notifications make it possible to deliver important and timely messages to users even when they’re inactive. | Cloudflare Durable Objects No | Google Cloud Pub/Sub Yes You can create a push subscription workflow for push notifications using Google Pub/Sub. Read more |
Message delta compression | Minimizes bandwidth and can reduce latency, particularly in scenarios where continuous updates are sent. | Cloudflare Durable Objects No Cloudflare Durable Objects supports the Brotli and gzip compression algorithms for all responses, rather than delta compression. | Google Cloud Pub/Sub No |
Programmatic management | Enables the automation of provisioning, management, and testing of service resources, simplifying integration with existing development workflows such as CI. | Cloudflare Durable Objects Yes Programmatic management is possible through the Durable Objects REST API. | Google Cloud Pub/Sub Yes |
Pricing | |||
Free plan | With a free plan, you can test the service’s functionality and compatibility with your project before committing to a paid plan. | Cloudflare Durable Objects No | Google Cloud Pub/Sub No |
Pricing model | The pricing model should align with your project's expected load, usage patterns, and budget in order to be cost-effective and efficient. | Cloudflare Durable Objects Cloudflare Durable Objects is only available on a pay-as-you-go plan. The plan offers 1 million requests and then $0.15/million requests. Connections to Durable Objects are billed as one request. Read more | Google Cloud Pub/Sub Google Pub/Sub has usage-based pricing, based the number of published, delivered, and stored bytes. Read more |
Integrations & interoperability | |||
SDKs | Supporting multiple languages and platforms offers greater flexibility when building cross-platform realtime apps. | Cloudflare Durable Objects
| Google Cloud Pub/Sub
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Supported realtime protocols | Support for multiple protocols provides the flexibility to choose a protocol that best suits your project’s requirements. | Cloudflare Durable Objects
| Google Cloud Pub/Sub None. Google Pub/Sub does not natively support any real-time protocols. However, you can implement WebSockets using other Google services like Google's Compute Engine. |
Serverless functions | Enables integration with third-party cloud providers by facilitating the execution of custom code against messages to perform business logic like on-the-fly translation. | Cloudflare Durable Objects
| Google Cloud Pub/Sub
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Streaming & queueing | Provides a dependable method to reroute messages from the service to third-party streams and queues for further processing. | Cloudflare Durable Objects No Cloudflare Durable Objects itself doesn't directly support specific message brokers or streaming platforms. Instead, it provides a runtime environment where you can implement your own logic. | Google Cloud Pub/Sub Yes |
Observability services | Enables realtime monitoring and troubleshooting by offering insights into service behavior directly in your observability platform of choice. | Cloudflare Durable Objects Partial For observability, Cloudflare Durable Objects can be integrated with Baselime, or can be retrieved with Cloudflare's GraphQL Analytics API. Read more | Google Cloud Pub/Sub Yes The Google Monitoring, Alerting and Logging integration provides observability services. Read more |
CI/CD tools | Makes it possible to provision and configure service infrastructure as part of a CI or CD pipeline, enabling repeatable and reliable deployments. | Cloudflare Durable Objects Yes Supports:
| Google Cloud Pub/Sub Yes Supports:
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Quality of Service | |||
Scalability | Scalability is vital as it ensures the service can handle increased data load or users without compromising performance. | Cloudflare Durable Objects Durable Objects scale horizontally across many objects as needed. Each single object can handle up to 1,000 requests per second. Read more | Google Cloud Pub/Sub Google Pub/Sub is built to be scalable and reliable. Google uses the service for their products to send billions of messages per day. You can read more about their architecture and limitations in their documentation. |
Guaranteed message delivery | Ensures messages are never lost during transmission, even in the presence of network disruptions. | Cloudflare Durable Objects Partial Cloudflare Durable Objects requires integration with Cloudflare Queues to achieve guaranteed message delivery. Read more | Google Cloud Pub/Sub Yes |
Guaranteed message ordering | Maintains the sequence of messages as they were sent. This is particularly important in apps where the chronological order of messages is essential for meaningful communication. | Cloudflare Durable Objects Partial Cloudflare Durable Objects requires integration with Cloudflare Queues to achieve guaranteed message ordering. Read more | Google Cloud Pub/Sub No Google Pub/Sub supports message ordering, but cannot always guarantee it even when this is enabled - for example, when dead-letter topics are enabled on subscriptions. Read more |
Exactly-once message delivery | Guarantees that each message is processed exactly once, preventing data inconsistencies that can arise from duplicate processing or missing messages. | Cloudflare Durable Objects Partial Cloudflare Durable Objects requires integration with Cloudflare Queues to achieve exactly-once message delivery. Read more | Google Cloud Pub/Sub Yes Google Pub/Sub supports exactly-once delivery based on a Pub/Sub-defined unique message ID. Read more |
Performance & availability | |||
Uptime Guarantee | An uptime guarantee instills confidence in the reliability of the service and protects your business from the negative impacts of downtime. | Cloudflare Durable Objects Cloudflare offers Business customers a 100% uptime SLA with service credits for any failures, while Enterprise customers have separate agreements. Read more | Google Cloud Pub/Sub 99.95% Read more |
Global edge network | By bringing servers (Points of Presence, or PoP) geographically closer to the devices of end users, and routing requests to the nearest PoP, global latency is reduced to a minimum. | Cloudflare Durable Objects No | Google Cloud Pub/Sub Yes |
Multi-region data replication (message durability) | By replicating data across multiple regions, the risk of data loss or downtime is greatly mitigated since if data is lost or a server fails in one region, the information can be retrieved from another. | Cloudflare Durable Objects Yes Read more | Google Cloud Pub/Sub Yes Google Pub/Sub supports synchronous data replication across three zones. |
No single point of failure or congestion | Having no single point of failure means a system is resilient and can continue to operate even if one part fails. Avoiding a single point of congestion ensures messages flow efficiently across the system and avoids bottlenecks that could lead to performance issues under load. | Cloudflare Durable Objects Yes | Google Cloud Pub/Sub Yes |
Latency | Low latency is crucial for realtime apps as it ensures swift and efficient data transmissions, providing a smoother and more responsive user experience. | Cloudflare Durable Objects Unknown. | Google Cloud Pub/Sub 100ms round trip |
Security & compliance | |||
API key authentication | Simplifies the authentication code on trusted servers compared to requesting, managing, and refreshing tokens. | Cloudflare Durable Objects Yes | Google Cloud Pub/Sub No Google Pub/Sub only supports gcloud CLI credential and Application Default Credentials (ADC). Read more |
Token-based authentication | Provides a means to securely authenticate user devices against your user management system. | Cloudflare Durable Objects No | Google Cloud Pub/Sub Yes |
Single Sign-On (SSO) authentication | SSO streamlines login processes, boosts security by minimizing password use, and meets compliance needs for secure data access management. | Cloudflare Durable Objects No | Google Cloud Pub/Sub Yes SSO authentication in Pub/Sub is supported through Google Cloud IAM, OAuth 2.0, and Workforce Identity Federation, allowing integration with external identity providers like Azure AD or Okta. Read more |
Rules for permissions and operations | Provides control over which users can subscribe and publish to certain channels. | Cloudflare Durable Objects No | Google Cloud Pub/Sub Yes Rules for permissions and operation can be configured using Identity and Access Management (IAM). Read more |
End-to-end encryption | Ensures that the data transmitted between the client and the API server remains confidential and secure while in transit. | Cloudflare Durable Objects Yes Data in transit is encrypted via TLS/SSL. | Google Cloud Pub/Sub Yes |
Encryption at rest | Ensures data stored by the service is secure and compliant, while also mitigating the risks of a data breach. | Cloudflare Durable Objects Yes Cloudflare encrypts all users' data at rest using the AES-256 standard. | Google Cloud Pub/Sub Yes |
Compliance | Compliance with regulations can impact your ability to meet legal obligations in your industry. | Cloudflare Durable Objects
| Google Cloud Pub/Sub
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Alternatives to Cloudflare Durable Objects and Google Cloud Pub/Sub
While both Cloudflare Durable Objects and Google Cloud Pub/Sub are worth considering as options for realtime experiences, they aren’t without their limitations. We suggest evaluating them against the following alternatives to make sure you find the right solution for your needs.
Alternatives to Cloudflare Durable Objects
Amazon API Gateway is a service for building, deploying, and managing APIs.
AWS AppSync enables developers to seamlessly handle and synchronize mobile app data in real-time across multiple devices and users.
Socket.IO is a library that provides realtime, bi-directional communication between clients and servers. It allows the management of connections, sending and receiving messages, and more.
Alternatives to Google Cloud Pub/Sub
AWS SQS is a message queuing solution for decoupling apps, services & architectures.
Apache Kafka is an open-source realtime data streaming platform.
Azure Service Bus is a fully managed message service with message queues and Pub/Sub topics.
Discover how Cloudflare Durable Objects and Google Cloud Pub/Sub stack up against Ably
Ably is the definitive realtime experience platform of the internet. See how we compare to Cloudflare Durable Objects and Google Cloud Pub/Sub on key dimensions such as core features, pricing, integrations, QoS, performance, and security and compliance.
Try Ably for free to discover the benefits for yourself
Ably has built reliable realtime infrastructure so you don’t have to. On our free plan you benefit from:
- 6M monthly messages
- 200 concurrent channels
- 200 concurrent connections