
KeyCDN
CloudFlare
Amazon CloudFront
CDN77
Akamai
Fastly
Microsoft Azure CDN
StackPath
IsValid.dev
Abstract APIs
Numverify
mailboxlayer API
IBAN.com
VAT-calc.net
Melissa Data Quality
MailValidation.io
IsValid is a validation API service for developers who need to quickly verify data formats without building their own validators. It offers 40+ endpoints covering financial identifiers (IBAN, BIC, ISIN, CUSIP), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes), regional codes (PESEL, REGON, VAT), and more.
The service works on a freemium model โ 100 free API calls per day, no credit card required. Users manage API keys through a dashboard with usage analytics showing daily call volume and per-endpoint breakdowns.
KeyCDN
IsValid.devKeyCDN is recommended for small to medium-sized businesses, e-commerce sites, bloggers, and web developers who need an efficient and cost-effective CDN solution. Its simplicity and robust support make it an excellent choice for those who want a straightforward setup without sacrificing performance.
No IsValid.dev videos yet. You could help us improve this page by suggesting one.
IsValid.dev's answer:
IsValid offers 70+ validators in a single API โ covering financial identifiers (IBAN, BIC, ISIN, LEI), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes), tax numbers (VAT, REGON, PESEL), credit cards, phone numbers, and more. No need to integrate multiple services for different data types.
IsValid.dev's answer:
Most validation APIs focus on one category (email or phone). IsValid covers financial, regional, and technical formats all in one place with a consistent REST API. The free tier with 100 calls/day requires no credit card, and integration takes minutes.
IsValid.dev's answer:
Developers and software teams building applications that handle user input, financial data, or international identifiers โ particularly in fintech, e-commerce, and SaaS products.
IsValid.dev's answer:
IsValid was built out of frustration with piecing together multiple validation libraries and services. The goal was a single, reliable API that handles the full range of data validation needs developers encounter in real-world applications.
IsValid.dev's answer:
Next.js, Fastify, PostgreSQL, Docker
KeyCDN is refreshing because it doesnโt overcomplicate things. Itโs easy to set up, the interface actually makes sense, and youโre not buried in confusing options or enterprise-only features. The pricing is just as straightforward โ clear, affordable, and predictable, without hidden fees or surprise costs. It feels built for real people and real teams who just want a fast, reliable CDN without the hassle.
Based on our record, KeyCDN seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Migrate to a good host like Krystal.uk. The difference is night and day. Then, host the file with a CDN like https://bunny.net or https://keycdn.com. Source: about 4 years ago
Use any hosting on the sidebar, and a CDN like bunny or key. Otherwise you'd get banned from a web hosting plan, either from DMCA or auto file uploads. CDNs are designed for constant file uploads and usually warn you if anything illegal is uploaded, or forcefully deletes it. Source: about 4 years ago
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.
Abstract APIs - Simple, powerful APIs for everyday dev tasks
Amazon CloudFront - Amazon CloudFront is a content delivery web service.
Numverify - Global phone number validation and lookup API
CDN77 - Content Delivery Network - website speed acceleration with CDN77. 28+ PoPs, Pay-as-you-go prices, no commitments.
mailboxlayer API - Mailboxlayer is a free, simple and powerful JSON API offering instant email address validation & verification via syntax checks, typo and spelling checks, SMTP checks, free and disposable provider filtering, and much more.