# idna vs rand_core

**Leader by Vioscale score:** idna

| Attribute | idna | rand_core |
|---|---|---|
| **Vioscale score** | 84.2 (40% (low)) | 43.5 (17% (low)) |
| activity.commits_last_30d | 58 | 2 |
| adoption.dependent_repos | 408,607 | 73,473 |
| adoption.github_stars | 291 | 13 |
| adoption.package_downloads_weekly | 442,973,541 | - |
| content.faq | `[{"answer":"idna is a Python library for processing and validating internationalized domain names—domain names containing characters from multiple languages and writing systems. It's used in applications to reliably handle encoding, decoding, and validation of these domain names.","source":"https://pypi.org/project/idna/","question":"What is idna used for?","confidence":0.95},{"answer":"idna supersedes Python's standard library IDNA implementation by offering broader script coverage and including security vulnerability filtering. This makes it a more comprehensive option for applications requiring robust international domain name handling.","source":"https://pypi.org/project/idna/","question":"How does idna compare to Python's standard library?","confidence":0.9},{"answer":"Yes, idna is open source software with no licensing fees or usage charges. You can use it freely in any Python project.","source":"https://pypi.org/project/idna/","question":"Is idna free to use?","confidence":0.95},{"answer":"An internationalized domain name (IDN) is a web address containing characters from non-Latin writing systems—such as Chinese, Arabic, Cyrillic, Greek, or other scripts—allowing users to register and access domains in their native languages.","source":"https://pypi.org/project/idna/","question":"What is an internationalized domain name?","confidence":0.85},{"answer":"Yes, idna includes security vulnerability filtering as part of its domain name processing. This helps protect applications from security issues that can arise from improper handling of Unicode and international domain names.","source":"https://pypi.org/project/idna/","question":"Does idna include security features?","confidence":0.8},{"answer":"idna is a Python library distributed via the Python Package Index (PyPI). It integrates into Python projects on any platform that supports Python.","source":"https://pypi.org/project/idna/","question":"What platforms does idna support?","confidence":0.9},{"answer":"Developers building Python applications that work with international domain names should consider idna. It is particularly relevant for services with global audiences or those managing domain operations across multiple languages and regions.","source":"https://pypi.org/project/idna/","question":"Who should use idna?","confidence":0.75}]` | `[{"answer":"rand_core is a Rust library that provides core traits and tools for implementing random number generation functionality. It serves as a foundation for developers who are building their own randomness solutions and libraries within the Rust ecosystem.","source":"https://rust-random.github.io/book","question":"What is rand_core?","confidence":0.95},{"answer":"rand_core is open-source software available at no cost. There are no subscription fees, licensing charges, or usage restrictions for using the library.","source":"https://rust-random.github.io/book","question":"What is the cost and licensing model?","confidence":1},{"answer":"rand_core is designed for Rust developers who need to implement random number generation capabilities in their projects or libraries. It provides the essential traits and foundational tools required to build such implementations.","source":"https://rust-random.github.io/book","question":"Who should use rand_core?","confidence":0.9},{"answer":"The project includes a quick start guide, an overview of available features, and contributor documentation. These resources support both users getting started with the library and developers interested in contributing.","source":"https://rust-random.github.io/book","question":"What documentation is provided?","confidence":0.95},{"answer":"Yes, rand_core welcomes community contributions. The project provides dedicated contributor documentation to guide developers interested in participating in its development.","source":"https://rust-random.github.io/book","question":"Can developers contribute to the project?","confidence":0.9},{"answer":"rand_core is built specifically for the Rust programming language. It integrates with Rust's type system and ecosystem to provide traits and tools for random number generation implementations.","source":"https://rust-random.github.io/book","question":"What programming language does rand_core target?","confidence":0.85}]` |
| description.long | A Python package implementing the IDNA specification for handling internationalized domain names in applications. It converts Unicode domain names to ASCII-compatible format and back, with support for Unicode normalization and validation that exceeds the standard library. | An open-source Rust library providing foundational traits for implementing random number generation algorithms. It supplies the core interfaces that RNG implementations build on, along with helper utilities for algorithm development. |
| language.primary | Python | Rust |
| license.spdx | BSD-3-Clause | Apache-2.0 |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true}` | - |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://pypi.org/project/idna/","retrievedAt":"2026-08-14T11:09:14.342Z"}` | `{"type":"open_source","sourceUrl":"https://rust-random.github.io/book","retrievedAt":"2026-08-14T11:10:14.361Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | - |
| release.cadence_days | 14 | 71 |
| release.history | `[{"url":"https://github.com/kjd/idna/releases/tag/v3.19","date":"2026-08-18T05:14:47Z","type":"stable","version":"v3.19"},{"url":"https://github.com/kjd/idna/releases/tag/v3.18","date":"2026-06-02T14:34:28Z","type":"stable","version":"v3.18"},{"url":"https://github.com/kjd/idna/releases/tag/v3.17","date":"2026-05-28T14:33:03Z","type":"stable","version":"v3.17"},{"url":"https://github.com/kjd/idna/releases/tag/v3.16","date":"2026-05-22T00:16:45Z","type":"stable","version":"v3.16"},{"url":"https://github.com/kjd/idna/releases/tag/v3.15","date":"2026-05-12T22:46:21Z","type":"stable","version":"v3.15"},{"url":"https://github.com/kjd/idna/releases/tag/v3.14","date":"2026-05-10T20:32:37Z","type":"stable","version":"v3.14"},{"url":"https://github.com/kjd/idna/releases/tag/v3.13","date":"2026-04-22T16:43:03Z","type":"stable","version":"v3.13"},{"url":"https://github.com/kjd/idna/releases/tag/v3.12","date":"2026-04-21T13:33:14Z","type":"stable","version":"v3.12"},{"url":"https://github.com/kjd/idna/releases/tag/v3.11","date":"2025-10-12T14:55:53Z","type":"stable","version":"v3.11"},{"url":"https://github.com/kjd/idna/releases/tag/v3.10","date":"2024-09-15T18:08:06Z","type":"stable","version":"v3.10"},{"url":"https://github.com/kjd/idna/releases/tag/v3.9","date":"2024-09-14T02:58:56Z","type":"stable","version":"v3.9"},{"url":"https://github.com/kjd/idna/releases/tag/v3.8","date":"2024-08-23T16:05:35Z","type":"stable","version":"v3.8"},{"url":"https://github.com/kjd/idna/releases/tag/v3.7","date":"2024-04-11T03:45:28Z","type":"stable","version":"v3.7"}]` | `[{"url":"https://github.com/rust-random/rand_core/releases/tag/v0.10.1","date":"2026-04-13T15:37:40Z","type":"stable","version":"v0.10.1"},{"url":"https://github.com/rust-random/rand_core/releases/tag/v0.10.0","date":"2026-02-01T09:09:36Z","type":"stable","version":"v0.10.0"}]` |
| reliability.status_page | - | yes |
| security.disclosure_policy | yes | - |
| security.scorecard | 8.8 | - |
| security.vulnerabilities | - | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=cargo&package_name=rand_core&per_page=100","last_12m":0,"max_severity":"CRITICAL"}` |

*Source: Vioscale. Generated 2026-09-01T14:46:00.729Z. "-" = undocumented, not absent.*