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News
Testing email verification flows in Playwright without a mail server
2+ hour, 17+ min ago (682+ words) Most signup tests die at the same line. The form submits, the app renders "check your email", and the test has nowhere to go. You can assert the confirmation screen appeared, but everything after it — the code entry, the activated…...
Every model. One API key.
4+ hour, 57+ min ago (427+ words) Annual Sale!Get 30% offClaim Now→ Developer API · v1 live Generate with the Nano Banana family today; Veo 3.1 and Seedream 5 join the same endpoint next, then the rest of the Flux1 AI catalog. One request shape, billed with the credits you already have....
Never trust a payment webhook on its first word
2+ hour, 48+ min ago (459+ words) A payment webhook is, structurally, a stranger sending your server a POST that says "this person paid." If your handler believes it, anyone who can reach that URL can mark orders as paid. In Saturdays, where PhonePe settles real money…...
Scaling transactional email: which provider fits at each growth stage (0 -> 100K+ emails/month)
3+ hour, 48+ min ago (1794+ words) Picking a transactional email provider feels like a five-minute decision — add an API key, send your first signup confirmation, move on. It stays a five-minute decision until you scale, at which point the plan you casually picked can turn into…...
Send Transactional Email from a Verified Domain with an API or SMTP
6+ hour, 12+ min ago (245+ words) Password resets, login codes, receipts, and alerts are easier to operate when application email has its own delivery path. Here are the setup decisions that matter before sending. Use a domain you control, then add the DNS records shown by…...
HTTP Request Smuggling: The Complete Guide
16+ hour, 19+ min ago (1050+ words) Every Method, Technique, Bypass, and Defense You Need to Know HTTP Request Smuggling also known as HTTP Desync or HTTP Header Smuggling is one of the most …...
Custom Domain Onboarding: Show DNS Records, Copy or Write Them for Customers
23+ hour, 2+ min ago (674+ words) Short answer: show the exact SPF, DKIM, and DMARC records first, then let a customer explicitly authorize a write; this keeps onboarding honest when the DNS zone is customer-owned and prevents your intent from drifting away from what the internet…...
Why “Claimable” Doesn’t Always Mean “Exploitable”: A Subdomain Takeover That Wasn’t
18+ hour, 26+ min ago (150+ words) A dangling CNAME, a claimable Mailgun domain, and a rejection that taught me more than an acceptance would have. Subdomain takeover checklists all say some version of the same thing: find a CNAME pointing to a service, confirm the target…...
What I learned checking 65 client domains with RDAP instead of WHOIS
23+ hour, 50+ min ago (611+ words) I built a domain expiry monitor, and to test it against something other than my own domains I pointed it at the "our work" pages of 30 US web design agencies — the client sites they link to publicly — and checked every…...
Path-Based Routing with Reverse Proxy: Serving Multiple Websites from One Domain
1+ day, 8+ min ago (1696+ words) At some point in our development journey, we’ve all played around with domains, subdomains, routes, reverse proxies, and enough DNS records to make us question our life choices. But here’s an interesting problem: What if you want a completely different…...