--- title: Trusted URLs Via Cryptographic Signatures | daily.dev description: Certisfy introduces a feature that lets users embed URLs within cryptographically signed claims, enabling link authenticity verification. URLs can be... canonical: https://daily.dev/posts/trusted-urls-via-cryptographic-signatures-1uu8tndzm twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Trusted URLs Via Cryptographic Signatures | daily.dev og:description: Certisfy introduces a feature that lets users embed URLs within cryptographically signed claims, enabling link authenticity verification. URLs can be... og:url: https://daily.dev/posts/trusted-urls-via-cryptographic-signatures-1uu8tndzm og:image: https://api.daily.dev/og/posts/1uU8tNdZm.png og:image:alt: Trusted URLs Via Cryptographic Signatures og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Trusted URLs Via Cryptographic Signatures **[Hacker News](https://daily.dev/sources/hn)** · 1 min read · 0 upvotes · 0 comments ## Summary Certisfy introduces a feature that lets users embed URLs within cryptographically signed claims, enabling link authenticity verification. URLs can be restricted to specific referrer sources to prevent fraudulent reposting. The approach aims to create a 'verified web' where creators, journalists, and others can signal trust for shared links, particularly valuable in an AI-saturated online environment where authenticity signals are scarce. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Presigned URLs are technically a security vuln](https://daily.dev/posts/presigned-urls-are-technically-a-security-vuln-k55xo6puc) · Tigris · 56 upvotes · 1 comments - [Fireside Chat: PKI has carried digital trust through every tech advance—now comes the hardest one](https://daily.dev/posts/fireside-chat-pki-has-carried-digital-trust-through-every-tech-advance-now-comes-the-hardest-one-ysyuuu3ar) · Security Boulevard · 0 upvotes · 0 comments - [Verifiable Bookmarklets](https://daily.dev/posts/verifiable-bookmarklets-qwfvcnuy3) · ITNEXT · 1 upvotes · 0 comments - [Designing quality signals when AI makes everything look credible](https://daily.dev/posts/designing-quality-signals-when-ai-makes-everything-look-credible-78yhnx2yb) · LogRocket · 0 upvotes · 0 comments - [Leading Open Source Author Calls for Verification over Trust in Software Supply Chains](https://daily.dev/posts/leading-open-source-author-calls-for-verification-over-trust-in-software-supply-chains-xli4eiofk) · InfoQ · 4 upvotes · 1 comments --- Tags: [#security](https://daily.dev/tags/security) [View this post on daily.dev](https://daily.dev/posts/trusted-urls-via-cryptographic-signatures-1uu8tndzm) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Trusted URLs Via Cryptographic Signatures","url":"https://daily.dev/posts/trusted-urls-via-cryptographic-signatures-1uu8tndzm","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/trusted-urls-via-cryptographic-signatures-1uu8tndzm"},"datePublished":"2026-07-30T17:43:59.831Z","dateModified":"2026-07-30T18:07:03.973Z","description":"Certisfy introduces a feature that lets users embed URLs within cryptographically signed claims, enabling link authenticity verification. 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