Avaliação do site haskellforall.com
Haskell for all
Gerado a 24 de Março de 2026 14:09 PM
Estatísticas desatualizadas? ATUALIZE !
O resultado é de 54/100
Conteúdo SEO
Título
Haskell for all
Cumprimento : 15
Perfeito, o Título contém entre 10 e 70 caracteres.
Descrição
A blog about Haskell and functional programming
Cumprimento : 47
Idealmente, a Descrição META deve conter entre 70 e 160 caracteres (incluíndo espaços).
Palavras-chave
Mau. Não detetámos palavras-chave META na sua página.
Propriedades Og Meta
Boa! Esta página tira vantagens das propriedades Og.
| Propriedade | Conteúdo |
|---|---|
| title | Haskell for all |
| description | A blog about Haskell and functional programming |
| image | https://haskellforall.com/imgs/logo.jpg |
| image:alt | Haskell for all |
| type | article |
Cabeçalhos
| H1 | H2 | H3 | H4 | H5 | H6 |
| 1 | 199 | 0 | 0 | 0 | 199 |
- [H1] Haskell for all
- [H2] A sufficiently detailed spec is code
- [H2] Browse code by meaning
- [H2] Beyond agentic coding
- [H2] My experience with vibe coding
- [H2] Type-safe eval in Grace
- [H2] Chat is the least interesting interface to LLMs
- [H2] Prompting 101: Show, don’t tell
- [H2] Nix Steering Committee vote of no confidence
- [H2] Steering Committee Retrospective
- [H2] Datatype unification using Monoids
- [H2] Prompt chaining reimagined with type inference
- [H2] The Haskell inlining and specialization FAQ
- [H2] Firewall rules: not as secure as you think
- [H2] Software engineers are not (and should not be) technicians
- [H2] Quality and productivity are not necessarily mutually exclusive
- [H2] My spiciest take on tech hiring
- [H2] Prefer do notation over Applicative operators when assembling records
- [H2] All error messages are necessarily bad to some degree
- [H2] The siren song of domain-specific languages
- [H2] Unification-free ("keyword") type checking
- [H2] A GHC plugin for OpenTelemetry build metrics
- [H2] My views on NeoHaskell
- [H2] GHC plugin for HLint
- [H2] Ergonomic newtypes for Haskell strings and numbers
- [H2] The "open source native" principle for software design
- [H2] terraform-nixos-ng: Modern terraform support for NixOS
- [H2] Announcing nixos-rebuild: a "new" deployment tool for NixOS
- [H2] Nixpkgs support for Linux builders running on macOS
- [H2] Nixpkgs support for incremental Haskell builds
- [H2] How to correctly cache build-time dependencies using Nix
- [H2] What does "isomorphic" mean (in Haskell)
- [H2] nix-serve-ng: A faster, more reliable, drop-in replacement for nix-serve
- [H2] Stop calling everything "Nix"
- [H2] Incrementally package a Haskell program using Nix
- [H2] defaultable-map: An Applicative wrapper for Maps
- [H2] The appeal of bidirectional type-checking
- [H2] Generate web forms from pure functions
- [H2] The golden rule of software distributions
- [H2] Why does Haskell's take function accept insufficient elements?
- [H2] Introductory resources to type theory for language implementers
- [H2] Modeling PlusCal in Haskell using Cartesian products of NFAs
- [H2] The hard part of type-checking Nix
- [H2] Applicatives should usually implement Semigroup and Monoid
- [H2] What is a monad morphism (in Haskell)?
- [H2] Nixpkgs overlays are monoids
- [H2] Funding isn't the problem with open source
- [H2] Co-Applicative programming style
- [H2] Advice for aspiring bloggers
- [H2] The "return a command" trick
- [H2] Fall-from-Grace: A ready-to-fork functional programming language
- [H2] Optics are monoids
- [H2] Forward and reverse proxies explained
- [H2] Naming function arguments in Dhall
- [H2] Namespaced De Bruijn indices
- [H2] Probability for Slay the Spire fanatics
- [H2] Module organization guidelines for Haskell projects
- [H2] The trick to avoid deeply-nested error-handling code
- [H2] The end of history for programming
- [H2] How to replace Proxy with AllowAmbiguousTypes
- [H2] Folds are constructor substitution
- [H2] Dynamic type errors lack relevance
- [H2] The visitor pattern is essentially the same thing as Church encoding
- [H2] Recruiting for diversity is not lowering the bar
- [H2] How to use NixOS for lightweight integration tests
- [H2] Pretty-print syntax trees with this one simple trick
- [H2] Why I prefer functional programming
- [H2] The golden rule of software quality
- [H2] Record constructors
- [H2] Blazing fast Fibonacci numbers using Monoids
- [H2] Dhall Survey Results (2019-2020)
- [H2] Why Dhall advertises the absence of Turing-completeness
- [H2] Dhall - Year in review (2019-2020)
- [H2] Prefer to use fail for IO exceptions
- [H2] The CAP theorem for software engineering
- [H2] Release early and often
- [H2] Dhall Survey Results (2018-2019)
- [H2] Haskell command-line utility using GHC generics
- [H2] Dhall - Year in review (2018-2019)
- [H2] Detailed walkthrough for a beginner Haskell program
- [H2] NixOS in production
- [H2] How I evaluate Haskell packages
- [H2] The wizard monoid
- [H2] Dhall Survey Results (2017-2018)
- [H2] Dhall - Year in review (2017-2018)
- [H2] Compare Nix derivations using nix-diff
- [H2] Semantic integrity checks are the next generation of semantic versioning
- [H2] Advice for Haskell beginners
- [H2] Why do our programs need to read input and write output?
- [H2] Type-driven strictness
- [H2] Demystifying Haskell assignment
- [H2] Dhall is now a template engine
- [H2] Translating a C++ parser to Haskell
- [H2] Use Dhall to configure Bash programs
- [H2] The Curry-Howard correspondence between programs and proofs
- [H2] Program JSON and YAML with Dhall
- [H2] Typed Nix programming using Dhall
- [H2] Dhall - A non-Turing-complete configuration language
- [H2] Electoral vote distributions are Monoids
- [H2] Auto-generate service API endpoints from records
- [H2] list-transformer - A beginner-friendly ListT
- [H2] A command-line benchmark tool
- [H2] Data is Code
- [H2] Worst practices should be hard
- [H2] LambdaConf should reconsider its policy
- [H2] Auto-generate a command line interface from a data type
- [H2] State of the Haskell Ecosystem - February 2016 Edition
- [H2] From mathematics to map-reduce
- [H2] Compile-time memory safety using Liquid Haskell
- [H2] How to contribute to the Haskell ecosystem
- [H2] Interactive and composable charts
- [H2] Haskell-native spreadsheets
- [H2] Explicit is better than implicit
- [H2] Basic Haskell Examples
- [H2] Polymorphism for dummies
- [H2] How to make your Haskell code more readable to non-Haskell programmers
- [H2] State of the Haskell ecosystem - August 2015
- [H2] break-1.0.0: A small library for breaking from loops
- [H2] optional-args-1.0.0: Optional function arguments
- [H2] The internet of code
- [H2] Haskell content spinner
- [H2] Mathematical APIs
- [H2] Algebraic side effects
- [H2] Use Haskell for shell scripting
- [H2] total-1.0.0: Exhaustive pattern matching using traversals, prisms, and lenses
- [H2] A very general API for relational joins
- [H2] How to build library-agnostic streaming sources
- [H2] How to desugar Haskell code
- [H2] Morte: an intermediate language for super-optimizing functional programs
- [H2] managed-1.0.0: A monad for managed resources
- [H2] Equational reasoning at scale
- [H2] Spreadsheet-like programming in Haskell
- [H2] Model-view-controller, Haskell-style
- [H2] How the continuation monad works
- [H2] Scalable program architectures
- [H2] Worst practices are viral for the wrong reasons
- [H2] Introductions to advanced Haskell topics
- [H2] How to model handles with pipes
- [H2] Reasoning about stream programming
- [H2] pipes-http-1.0: Streaming HTTP/HTTPS clients
- [H2] pipes-parse-3.0: Lens-based parsing
- [H2] Streaming logging
- [H2] Shortcut fusion for pipes
- [H2] Equational reasoning
- [H2] Lift error handling with lens-like syntax
- [H2] Test stream programming using Haskell's `QuickCheck`
- [H2] An all-atom protein search engine powered by Haskell
- [H2] How to reimplement the conduit parsing API in 50 lines of pipes code
- [H2] Manual proofs for the `pipes` laws
- [H2] Perfect streaming using `pipes-bytestring`
- [H2] pipes-4.0: Simpler types and API
- [H2] foldl-1.0.0: Composable, streaming, and efficient left folds
- [H2] Composable streaming folds
- [H2] Sometimes less is more in language design
- [H2] Statements vs Expressions
- [H2] The Resource Monad
- [H2] From zero to cooperative threads in 33 lines of Haskell code
- [H2] pipes-concurrency-1.2.0: Behaviors and broadcasts
- [H2] pipes-parse-1.0.0: Pushback, delimited parsers, resumable parsing, and lenses
- [H2] pipes-3.3.0: Folds and uniting ListT with Proxy
- [H2] Program imperatively using Haskell lenses
- [H2] pipes and io-streams
- [H2] pipes-concurrency-1.0.0: Reactive programming
- [H2] Defaults
- [H2] pipes-3.2: ListT, Codensity, ArrowChoice, and performance
- [H2] mmorph-1.0.0: Monad morphisms
- [H2] Comonads are objects
- [H2] Introduction to Haskell IO
- [H2] pipes-safe-1.0 - Resource management and exception handling for pipes
- [H2] The Continuation Monad
- [H2] pipes-3.0 - A simpler, unified API
- [H2] pipes-2.5: Faster and slimmer
- [H2] "Hello, core!"
- [H2] Parsing chemical substructures
- [H2] pipes-2.4: Proxy transformers, extra categories, utilities, and benchmarks
- [H2] The MonadTrans class is missing a method
- [H2] The functor design pattern
- [H2] Concurrency = Lists of Kleisli arrows
- [H2] pipes-2.3 - Bidirectional pipes
- [H2] The category design pattern
- [H2] Code Example #1
- [H2] Free monad transformers
- [H2] First-class modules without defaults
- [H2] Purify code using free monads
- [H2] Breaking from a loop
- [H2] errors-1.0: Simplified error handling
- [H2] pipes-2.1 and index-core-1.0 - Indexed types
- [H2] GADTs
- [H2] Why free monads matter
- [H2] Conduit bugs
- [H2] pipes 2.0 - Pipe Finalization
- [H2] Scrap your type classes
- [H2] Haskell for Purists - Pipe Finalization
- [H2] Haskell for Java Programmers - Serialization
- [H2] Haskell for Engineers - Unicode
- [H2] Lenses
- [H2] Haskell for Mainstream Programmers - State
- [H2] Haskell for Intermediate Programmers - Algebraic Data Types
- [H2] Haskell for C Programmers - For Loops
- [H2] Haskell for Mainstream Programmers - Code reuse
- [H6] Tuesday, March 17, 2026
- [H6] Monday, February 16, 2026
- [H6] Saturday, February 7, 2026
- [H6] Monday, February 2, 2026
- [H6] Tuesday, January 20, 2026
- [H6] Wednesday, January 14, 2026
- [H6] Friday, January 9, 2026
- [H6] Wednesday, October 1, 2025
- [H6] Wednesday, September 17, 2025
- [H6] Wednesday, August 13, 2025
- [H6] Friday, May 2, 2025
- [H6] Thursday, November 14, 2024
- [H6] Thursday, August 29, 2024
- [H6] Tuesday, July 23, 2024
- [H6] Wednesday, July 3, 2024
- [H6] Tuesday, June 25, 2024
- [H6] Monday, May 20, 2024
- [H6] Wednesday, May 8, 2024
- [H6] Thursday, February 29, 2024
- [H6] Thursday, February 22, 2024
- [H6] Wednesday, October 4, 2023
- [H6] Monday, October 2, 2023
- [H6] Friday, September 8, 2023
- [H6] Monday, April 3, 2023
- [H6] Monday, March 6, 2023
- [H6] Monday, January 30, 2023
- [H6] Monday, January 23, 2023
- [H6] Friday, December 30, 2022
- [H6] Monday, December 19, 2022
- [H6] Monday, October 24, 2022
- [H6] Thursday, October 20, 2022
- [H6] Wednesday, September 7, 2022
- [H6] Monday, August 29, 2022
- [H6] Sunday, August 28, 2022
- [H6] Sunday, June 26, 2022
- [H6] Friday, June 3, 2022
- [H6] Tuesday, May 31, 2022
- [H6] Monday, May 9, 2022
- [H6] Tuesday, May 3, 2022
- [H6] Sunday, May 1, 2022
- [H6] Tuesday, March 29, 2022
- [H6] Saturday, March 12, 2022
- [H6] Wednesday, March 2, 2022
- [H6] Sunday, February 27, 2022
- [H6] Wednesday, January 26, 2022
- [H6] Monday, December 13, 2021
- [H6] Thursday, October 21, 2021
- [H6] Thursday, October 14, 2021
- [H6] Wednesday, October 6, 2021
- [H6] Wednesday, September 29, 2021
- [H6] Thursday, September 9, 2021
- [H6] Wednesday, September 1, 2021
- [H6] Friday, August 27, 2021
- [H6] Friday, August 13, 2021
- [H6] Friday, June 4, 2021
- [H6] Wednesday, May 19, 2021
- [H6] Wednesday, May 5, 2021
- [H6] Wednesday, April 21, 2021
- [H6] Thursday, April 8, 2021
- [H6] Saturday, February 6, 2021
- [H6] Sunday, January 31, 2021
- [H6] Monday, January 4, 2021
- [H6] Friday, December 4, 2020
- [H6] Thursday, November 19, 2020
- [H6] Tuesday, November 10, 2020
- [H6] Friday, October 30, 2020
- [H6] Monday, July 27, 2020
- [H6] Monday, July 13, 2020
- [H6] Tuesday, April 21, 2020
- [H6] Monday, February 10, 2020
- [H6] Friday, January 17, 2020
- [H6] Sunday, January 5, 2020
- [H6] Thursday, December 12, 2019
- [H6] Sunday, June 16, 2019
- [H6] Tuesday, May 14, 2019
- [H6] Thursday, February 21, 2019
- [H6] Monday, February 11, 2019
- [H6] Wednesday, January 16, 2019
- [H6] Monday, October 8, 2018
- [H6] Thursday, August 16, 2018
- [H6] Monday, May 21, 2018
- [H6] Monday, February 5, 2018
- [H6] Sunday, January 28, 2018
- [H6] Tuesday, January 2, 2018
- [H6] Monday, November 27, 2017
- [H6] Friday, November 3, 2017
- [H6] Monday, October 16, 2017
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- [H6] Tuesday, September 26, 2017
- [H6] Sunday, July 16, 2017
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- [H6] Saturday, June 10, 2017
- [H6] Thursday, April 13, 2017
- [H6] Monday, February 20, 2017
- [H6] Sunday, February 5, 2017
- [H6] Saturday, January 28, 2017
- [H6] Monday, December 5, 2016
- [H6] Thursday, October 27, 2016
- [H6] Monday, July 4, 2016
- [H6] Sunday, July 3, 2016
- [H6] Saturday, May 21, 2016
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- [H6] Sunday, April 10, 2016
- [H6] Sunday, April 3, 2016
- [H6] Saturday, February 27, 2016
- [H6] Sunday, February 21, 2016
- [H6] Wednesday, February 3, 2016
- [H6] Wednesday, December 30, 2015
- [H6] Wednesday, December 9, 2015
- [H6] Wednesday, November 18, 2015
- [H6] Wednesday, November 11, 2015
- [H6] Sunday, October 18, 2015
- [H6] Wednesday, October 7, 2015
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- [H6] Thursday, September 17, 2015
- [H6] Monday, August 31, 2015
- [H6] Monday, June 15, 2015
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- [H6] Friday, March 27, 2015
- [H6] Thursday, January 29, 2015
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- [H6] Saturday, December 6, 2014
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- [H6] Friday, September 12, 2014
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- [H6] Saturday, April 19, 2014
- [H6] Friday, April 4, 2014
- [H6] Tuesday, April 1, 2014
- [H6] Tuesday, March 25, 2014
- [H6] Monday, March 3, 2014
- [H6] Saturday, February 22, 2014
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- [H6] Wednesday, February 5, 2014
- [H6] Sunday, February 2, 2014
- [H6] Sunday, January 19, 2014
- [H6] Wednesday, December 25, 2013
- [H6] Thursday, December 19, 2013
- [H6] Friday, November 1, 2013
- [H6] Saturday, October 12, 2013
- [H6] Wednesday, October 9, 2013
- [H6] Sunday, October 6, 2013
- [H6] Friday, September 20, 2013
- [H6] Saturday, September 7, 2013
- [H6] Saturday, August 10, 2013
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- [H6] Saturday, July 13, 2013
- [H6] Friday, June 28, 2013
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- [H6] Thursday, June 6, 2013
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- [H6] Saturday, May 4, 2013
- [H6] Sunday, April 21, 2013
- [H6] Sunday, April 14, 2013
- [H6] Wednesday, April 10, 2013
- [H6] Thursday, March 21, 2013
- [H6] Saturday, March 16, 2013
- [H6] Thursday, February 14, 2013
- [H6] Monday, January 21, 2013
- [H6] Monday, January 14, 2013
- [H6] Sunday, December 30, 2012
- [H6] Wednesday, December 12, 2012
- [H6] Wednesday, October 31, 2012
- [H6] Saturday, October 20, 2012
- [H6] Monday, October 15, 2012
- [H6] Saturday, October 6, 2012
- [H6] Wednesday, September 19, 2012
- [H6] Saturday, September 15, 2012
- [H6] Friday, September 7, 2012
- [H6] Wednesday, September 5, 2012
- [H6] Saturday, August 18, 2012
- [H6] Friday, August 10, 2012
- [H6] Tuesday, July 31, 2012
- [H6] Thursday, July 19, 2012
- [H6] Wednesday, July 18, 2012
- [H6] Wednesday, July 11, 2012
- [H6] Sunday, July 8, 2012
- [H6] Sunday, July 1, 2012
- [H6] Saturday, June 16, 2012
- [H6] Saturday, June 9, 2012
- [H6] Sunday, May 27, 2012
- [H6] Monday, May 21, 2012
- [H6] Wednesday, May 2, 2012
- [H6] Thursday, March 29, 2012
- [H6] Saturday, February 11, 2012
- [H6] Sunday, January 29, 2012
- [H6] Saturday, January 28, 2012
- [H6] Wednesday, January 4, 2012
- [H6] Tuesday, January 3, 2012
- [H6] Sunday, January 1, 2012
- [H6] Saturday, December 31, 2011
Imagens
Encontrámos 1 imagens nesta página.
1 atributos ALT estão vazios ou em falta. É recomendado adicionar texto alternativo de modo a que os motores de busca identifiquem melhor o conteúdo das suas imagens.
Rácio Texto/HTML
Rácio : 19%
Bom! O rácio de texto para código HTML desta página é maior que 15, mas menor que 25 porcento.
Flash
Perfeito, não foi encontrado conteúdo Flash nesta página.
Iframe
Excelente, não foram detetadas Iframes nesta página.
Ligações SEO
Reescrita de URL
Perfeito. As ligações aparentam ser limpas!
Underscores (traços inferiores) nas URLs
Detetámos 'underscores' (traços inferiores) nas suas URLs. O uso hífens é mais eficiente em termos de otimização SEO.
Ligações para a própria página
Encontrámos um total de 201 ligações incluindo 0 ligações a ficheiros
Palavras-chave SEO
Núvem de palavras-chave
sunday dhall monday how using post announcement wednesday saturday haskell
Consistência das Palavras-chave
| Palavra-chave | Conteúdo | Título | Palavras-chave | Descrição | Cabeçalhos |
|---|---|---|---|---|---|
| haskell | 70 |  |
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| post | 64 | |
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| announcement | 45 | |
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| monday | 37 | |
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| wednesday | 36 | |
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Usabilidade
Url
Domínio : haskellforall.com
Cumprimento : 17
Favicon
Ótimo, o site tem um favicon.
Facilidade de Impressão
Não encontrámos CSS apropriado para impressão.
Língua
Otimo! A língua declarada deste site é en.
Dublin Core
Esta página não tira vantagens do Dublin Core.
Documento
Tipo de Documento
HTML 5
Codificação
Perfeito. O conjunto de caracteres UTF-8 está declarado.
Validação W3C
Erros : 0
Avisos : 0
Privacidade do Email
Aviso! No mínimo, foi encontrado um endereço de email sob a forma de texto. Isto é um convite para que spammers entupam a caixa de correio deste endereço.
HTML obsoleto
Fantástico! Não detetámos etiquetas HTML obsoletas.
Dicas de Velocidade
|
Excelente, este site não usa tablelas dentro de tabelas. |
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Perfeito. Não foram detetados estilos CSS nas etiquetas HTML! |
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Boa, o site usa poucos ficheiros CSS. |
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Oh, não! O site utiliza demasiados ficheiros JavaScript (mais que 6). |
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Perfeito, o site tira vantagens da compressão gzip. |
Dispositivos Móveis
Otimização para dispositivos móveis
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Icon Apple |
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Meta Viewport Tag |
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Conteúdo Flash |
Otimização
XML Sitemap
Em falta
O site não tem um mapa XML do site (sitemap) - isto pode ser problemático.
Um mapa do site identifica todas as URLs que estão disponíveis para rastreio, incluindo informação acerca de atualizações, frequência de alterações ou a importancia de cada URL. Isto contribui para uma maior inteligência e eficiência do rastreio.
Robots.txt
https://haskellforall.com/robots.txt
Perfeito, o seu site tem um ficheiro robots.txt.
Analytics
Em falta
Não detetámos nenhuma ferramenta analítica de análise de atividade.
Este tipo de ferramentas (como por exemplo o Google Analytics) permite perceber o comportamento dos visitantes e o tipo de atividade que fazem. No mínimo, uma ferramenta deve estar instalada, sendo que em algumas situações mais do que uma pode ser útil.
PageSpeed Insights
Dispositivo
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