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Postio.co.uk VS Hashnode

Compare Postio.co.uk VS Hashnode and see what are their differences

Postio.co.uk

Fast UK address, email & phone validation APIs for developers. Official Royal Mail PAF data. Pay as you go, 100 free lookups.

Rating
0 reviews
Pricing
Paid Free trial £0.02 (Address 2.2p (searching is free), Email & Phone 1p)
Alternatives Is it good?
Hashnode

A friendly and inclusive Q&A network for coders

Rating
0 reviews
Alternatives Is it good?
Boostero
Boostero is an SMM panel for fast, reliable social media growth across 23+ platforms. Real engagement, 24/7 support, trusted by customers in 125+ countries since 2020. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Hashnode seems to be more popular. It has been mentioned 136 times since March 2021.

social mentions
0 vs 136
Postcode API popularity
100% vs 0%
alternatives listed
11 vs 240+

Base details

Website, pricing, platforms and company facts side by side.

Postio.co.uk
Hashnode
Website postio.co.uk hashnode.com
Pricing
Paid Free trial £0.02 (Address 2.2p (searching is free), Email & Phone 1p) Official pricing
—
Platforms
REST API Web JavaScript Node JS Python Go PHP Ruby .Net Wordpress Zapier +8
—
Company Startup from the United Kingdom · 1 - 9 employees Startup from India
Listed in
Address Finder Address Verification API Postcode API Email Verification API Phone Number Validation +2
Web App Social Media Tools Software Engineering CMS Open Source +2

About Postio.co.uk and Hashnode

In their own words, as submitted to SaaSHub.

Postio.co.uk
Hashnode

Postio (postio.co.uk) is a developer-focused data validation platform providing real-time UK address lookup, email verification, and phone validation via plain REST APIs and drop-in SDKs. As an official Royal Mail PAF Solutions Provider, Postio synchronises 30M+ UK addresses daily for accurate...

Read more about Postio.co.uk

No description of Hashnode yet.

Features and specs

What each product offers, as listed by its team.

Postio.co.uk 9 features
Hashnode 6 features
  • Address search
    UK address typeahead over Royal Mail PAF data, held under a direct licence
  • Postcode lookup
    Every PAF delivery point at a given postcode
  • UDPRN lookup
    Full address record by Royal Mail Unique Delivery Point Reference Number
  • Email validation
    Syntax, typo correction, MX, SMTP check and deliverability classification
  • Phone validation
    Parse and validate, plus live HLR lookup for carrier, ported status and reachability
  • Pricing model
    Pay per request — 2.2p per address, 1p per email, 1p per phone. No tiers, no contracts
  • Free tier
    100 lookups, no card required
  • API design
    All endpoints are GET and return the same JSON envelope. Public OpenAPI spec, CORS enabled
  • SDKs and integrations
    Official SDKs for JavaScript/Node, Python, Go, PHP, Ruby and .NET. Drop-in browser widget (~4 KB gzipped), MCP server for AI agentsOfficial SDKs for JavaScript/Node, Python, Go, PHP, Ruby and .NET. Drop-in browser widget (~4 KB gzipped), MCP server for AI agents
  • Developer-Focused Community
    Hashnode is tailored specifically for developers, fostering a specialized community where you can share technical content and engage with like-minded individuals.
  • Free Custom Domain
    Hashnode allows you to link a custom domain to your blog for free, enabling you to build a personal brand without additional costs.
  • SEO Optimization
    The platform is designed to be SEO-friendly, which helps your posts rank better on search engines, increasing visibility and reach.
  • Markdown Support
    Hashnode supports Markdown, making it easy for developers to write and format their content efficiently.
  • Analytics
    The platform provides built-in analytics, allowing you to track the performance of your posts and understand your audience better.
  • Community Engagement
    Hashnode has features like comments and reactions to facilitate interaction with readers and other community members.

Possible disadvantages

  • Limited Customization
    While you can link a custom domain, the customization options for the blog's appearance and functionality are limited compared to self-hosted solutions.
  • Developer Niche
    The focus on a developer community can be a double-edged sword if your content appeals to a broader audience, as the reach might be limited.
  • Dependency on Platform
    Relying on a third-party platform means you are subject to their policies, rules, and potential changes in service.
  • Content Export
    If you decide to move your blog to another platform, exporting your content can be less straightforward compared to self-hosted solutions.
  • Feature Limitations
    While Hashnode offers various features, it may not provide the extensive range of functionalities available with other blogging platforms or custom-built websites.

Analysis

An editorial look at what each product does well and who it suits.

Postio.co.uk
Hashnode

No analysis of Postio.co.uk yet.

Overall verdict

  • Hashnode is generally considered a good option for developers who want to share their knowledge and experiences through blogging. Its focus on the tech community and tools tailored for developers make it a valuable platform.

Why this product is good

  • Hashnode is a platform specifically designed for developers and tech enthusiasts to publish blogs and articles. It offers features like SEO optimization, the ability to map custom domains, and integration with GitHub, making it easy for users to write and share technical content. The community is active and supportive, providing a rich environment for feedback and engagement.

Recommended for

  • Developers looking to build an audience through technical blogging.
  • Tech enthusiasts who want to share and discuss innovative ideas.
  • Individuals seeking a community of like-minded tech professionals.
  • Anyone interested in reading up-to-date content on software development and technology.

Videos

Walkthroughs and reviews on video.

Postio.co.uk 0 videos + Add
Hashnode 3 videos + Add

No Postio.co.uk videos yet. You could help us improve this page by suggesting one.

Take Your Online Presence to the Next Level with Hashnode

More videos

  • - Hashnode: giving voice to people with a blogging platform for Developers - with Sandeep Panda
  • - How To Use Custom CSS To Make Your Hashnode Blog Awesome

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Postio.co.uk
Hashnode
100% 100%
Postcode API
0% 0%
0% 0%
CMS
100% 100%
100% 100%
Address Verification API
0% 0%
0% 0%
Blogging
100% 100%

Questions & Answers

As answered by people managing Postio.co.uk and Hashnode.

What makes your product unique?

Postio.co.uk's answer

Postio charges only when a lookup returns a result — searching is free. Address, email and phone validation sit behind one API with a single JSON response envelope, so you integrate once rather than stitching three vendors together. Address data comes from Royal Mail's Postcode Address File under a direct licence, not scraped or resold sources. There are no tiers, contracts or minimum spend, and the first 100 lookups need no card.

Which are the primary technologies used for building your product?

Postio.co.uk's answer

A REST API served from edge locations, with official SDKs for JavaScript/Node, Python, Go, PHP, Ruby and .NET, all open source on GitHub. The API is documented by a public OpenAPI specification.

Why should a person choose your product over its competitors?

Postio.co.uk's answer

Pricing is published and pay-as-you-go: 2.2p per address, 1p per email, 1p per phone, billed only on a result. No sales call, no annual contract, no minimum commitment. You can be live in a few minutes with 100 free lookups and no card, and the same API covers all three validation types. For UK addresses specifically, the data is licensed directly from Royal Mail rather than obtained second-hand — which matters after the 2025 High Court ruling on database rights in this market.

How would you describe the primary audience of your product?

Postio.co.uk's answer

Developers and technical teams building UK-facing forms — ecommerce checkouts, signup flows, CRM and logistics systems. Typically small to mid-sized product teams, agencies building for UK clients, and software vendors embedding address lookup in their own product. It suits anyone who wants a UK-accurate API without an enterprise procurement process.

What's the story behind your product?

Postio.co.uk's answer

Postio is a trading name of Onno Group Limited, registered in England & Wales (company no. 08622799). It was built to make Royal Mail PAF-accurate UK validation available on straightforward pay-as-you-go pricing, rather than the contracts and minimum commitments that have been standard in this market. Address, email and phone validation were brought together behind one consistent API so a team can solve all three at once.

Who are some of the biggest customers of your product?

Postio.co.uk's answer

Serving a huge range of customers across the world looking for a blazing fast UK Address AIP product. From bootsrapped entrepreuners to FTSE 250 companies. We serve them all.

User comments

Share your experience with using Postio.co.uk and Hashnode. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Postio.co.uk no reviews yet
Hashnode no reviews yet

We have no reviews of Postio.co.uk yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Postio.co.uk 0 mentions
Hashnode 136 mentions

Tracking Postio.co.uk since Aug 2026.

View more

Alternatives to Postio.co.uk and Hashnode

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