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From the first alert through containment, eradication, forensics, and post-incident review — a structured playbook for handling web app breaches.
SSRF chains, deserialization, prototype pollution, CSPP, race conditions, and the subtle bugs that get past automated scanners. With Django-specific exploitation and defense.
A deep technical tour of the actual surface attackers probe in modern web apps — protocol quirks, header semantics, cookie behaviors, and the bugs they enable.
Who actually attacks web applications, what they're after, and the threat models that matter for SaaS, e-commerce, and B2B platforms in 2026.
Move Django file storage off local disk: django-storages with S3-compatible object storage, private files via signed URLs, direct browser uploads with presigned POST, streaming large files, async image pipelines, and CDN + security pitfalls.
When Postgres full-text search isn't enough: integrating Elasticsearch/OpenSearch with Django — modelling documents, keeping the index in sync, tuning relevance with boosts and fuzziness, facets, and zero-downtime reindexing with aliases.
A production guide to Stripe in Django: the object model, Checkout vs PaymentIntents, subscription lifecycles, why webhooks are the source of truth, idempotency keys, and Strong Customer Authentication — without card data touching your server.
Async Django done right: the ASGI model, async views and the async ORM, safely mixing sync and async with sync_to_async, serving under Uvicorn, and the decision of when concurrency actually pays off.
Stop guessing why your app is slow. Profile a live Django process without restarting it using py-spy, trace per-request queries and timings with django-silk, read flame graphs, and turn findings into concrete fixes.
Move from a slow, brittle test suite to a fast, trustworthy one. Master pytest-django fixtures, generate data with factory_boy, find edge cases automatically with property-based testing, and measure real coverage with mutation testing.
Lock down server-to-server and public APIs. Layer per-client rate limiting, verify request integrity with HMAC signatures, defeat replay attacks with nonces and timestamps, and authenticate machines with mutual TLS.
Kill the password. Implement WebAuthn/passkeys in Django end to end — registration and authentication ceremonies, public-key credential storage, the security model that makes passkeys phishing-resistant, and a sane fallback strategy.
Ship to production continuously without big-bang risk. Build a feature-flag layer in Django, roll features out to a percentage of users, run A/B experiments, and add instant kill switches for when something goes wrong.
Decouple your Django services with events instead of synchronous calls. Choose between Redis Streams and Kafka, guarantee delivery with the transactional outbox pattern, and build idempotent consumers that survive retries.
When one PostgreSQL box stops keeping up, scale reads horizontally. Add streaming replicas, route reads with a Django database router, pool connections through PgBouncer, and handle replication lag without serving stale data.
Serve many customers from one Django codebase without leaking data between them. Compare shared-schema, schema-per-tenant, and database-per-tenant; implement tenant routing middleware; and lock down the query layer.
These tutorials are written from real production work, and the best ideas come from readers. Got a suggestion, a correction, or a subject you keep searching for and never find properly explained? Tell us — we read every message, and requested topics move to the front of the queue.
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