SlideShare a Scribd company logo
Front End OptimizationFEO
Maxim Mazurok Full Stack Web Developer @ CS Odessa
What is FEO?
Reduce requests
Reduce bytes
Accelerate render
LOAD FASTER
How to reduce requests?
CSS JS IMAGES
Sprites
Embedded
Replace with CSS
Bundle
Don’t use 3rd parties
Don’t use duplicates
Use only what is really needed for particular page
How to reduce bytes?
CSS HTML IMAGES
Format and size
Use SVG when possible
Minify SVG
Minify
Lossless compression
Use only what is really needed for particular page
JS
How to accelerate render?
CSS HTML IMAGES
Use appropriate sizeMinify
Use only what is really needed for particular page
JS
First view ValidateLess code
Frontend render
Async load
Progressive JPEG
BONUS How to beat the Google?
BONUS How to beat the Google?
BONUS How to beat the Google?
BONUS How to beat the Google?

More Related Content

More from OdessaFrontend

OAuth2 и OpenID Connect простым языком | Odessa Frontend Meetup #17
OAuth2 и OpenID Connect простым языком | Odessa Frontend Meetup #17OAuth2 и OpenID Connect простым языком | Odessa Frontend Meetup #17
OAuth2 и OpenID Connect простым языком | Odessa Frontend Meetup #17OdessaFrontend
 
Объекты в ECMAScript | Odessa Frontend Meetup #16
Объекты в ECMAScript | Odessa Frontend Meetup #16Объекты в ECMAScript | Odessa Frontend Meetup #16
Объекты в ECMAScript | Odessa Frontend Meetup #16OdessaFrontend
 
Фриланс как профессиональная деградация | Odessa Frontend Meetup #16
Фриланс как профессиональная деградация | Odessa Frontend Meetup #16Фриланс как профессиональная деградация | Odessa Frontend Meetup #16
Фриланс как профессиональная деградация | Odessa Frontend Meetup #16OdessaFrontend
 
Cлайдер на CSS | Odessa Frontend Meetup #16
Cлайдер на CSS | Odessa Frontend Meetup #16Cлайдер на CSS | Odessa Frontend Meetup #16
Cлайдер на CSS | Odessa Frontend Meetup #16OdessaFrontend
 
Современный станок верстальщика
Современный станок верстальщикаСовременный станок верстальщика
Современный станок верстальщикаOdessaFrontend
 
Викторина | Odessa Frontend Meetup #15
Викторина | Odessa Frontend Meetup #15Викторина | Odessa Frontend Meetup #15
Викторина | Odessa Frontend Meetup #15OdessaFrontend
 
DRY’им Vuex | Odessa Frontend Meetup #15
DRY’им Vuex | Odessa Frontend Meetup #15DRY’им Vuex | Odessa Frontend Meetup #15
DRY’им Vuex | Odessa Frontend Meetup #15OdessaFrontend
 
А/Б тестирование: Что? Как? Зачем? | Odessa Frontend Meetup #15
А/Б тестирование: Что? Как? Зачем? | Odessa Frontend Meetup #15А/Б тестирование: Что? Как? Зачем? | Odessa Frontend Meetup #15
А/Б тестирование: Что? Как? Зачем? | Odessa Frontend Meetup #15OdessaFrontend
 
Пощупать 3д в браузере | Odessa Frontend Meetup #15
Пощупать 3д в браузере | Odessa Frontend Meetup #15Пощупать 3д в браузере | Odessa Frontend Meetup #15
Пощупать 3д в браузере | Odessa Frontend Meetup #15OdessaFrontend
 
Викторина | Odessa Frontend Meetup #14
Викторина | Odessa Frontend Meetup #14Викторина | Odessa Frontend Meetup #14
Викторина | Odessa Frontend Meetup #14OdessaFrontend
 
Викторина | Odessa Frontend Meetup #13
Викторина | Odessa Frontend Meetup #13Викторина | Odessa Frontend Meetup #13
Викторина | Odessa Frontend Meetup #13OdessaFrontend
 
Структуры данных в JavaScript | Odessa Frontend Meetup #13
Структуры данных в JavaScript | Odessa Frontend Meetup #13Структуры данных в JavaScript | Odessa Frontend Meetup #13
Структуры данных в JavaScript | Odessa Frontend Meetup #13OdessaFrontend
 
Эффективность с большой буквы Э… или любой другой | Odessa Frontend Meetup #13
Эффективность с большой буквы Э… или любой другой | Odessa Frontend Meetup #13Эффективность с большой буквы Э… или любой другой | Odessa Frontend Meetup #13
Эффективность с большой буквы Э… или любой другой | Odessa Frontend Meetup #13OdessaFrontend
 
Как правильно делать анимацию и добиться 60fps на различных девайсах | Odessa...
Как правильно делать анимацию и добиться 60fps на различных девайсах | Odessa...Как правильно делать анимацию и добиться 60fps на различных девайсах | Odessa...
Как правильно делать анимацию и добиться 60fps на различных девайсах | Odessa...OdessaFrontend
 
Викторина | Odessa Frontend Meetup #12
Викторина | Odessa Frontend Meetup #12Викторина | Odessa Frontend Meetup #12
Викторина | Odessa Frontend Meetup #12OdessaFrontend
 
Как пройти собеседование по js? И зачем? vol. 2 | Odessa Frontend Meetup #12
Как пройти собеседование по js? И зачем? vol. 2 | Odessa Frontend Meetup #12Как пройти собеседование по js? И зачем? vol. 2 | Odessa Frontend Meetup #12
Как пройти собеседование по js? И зачем? vol. 2 | Odessa Frontend Meetup #12OdessaFrontend
 
Путь к WebGL через THREE.js | Odessa Frontend Meetup #12
Путь к WebGL через THREE.js | Odessa Frontend Meetup #12Путь к WebGL через THREE.js | Odessa Frontend Meetup #12
Путь к WebGL через THREE.js | Odessa Frontend Meetup #12OdessaFrontend
 
Машинное обучение на JS. С чего начать и куда идти | Odessa Frontend Meetup #12
Машинное обучение на JS. С чего начать и куда идти | Odessa Frontend Meetup #12Машинное обучение на JS. С чего начать и куда идти | Odessa Frontend Meetup #12
Машинное обучение на JS. С чего начать и куда идти | Odessa Frontend Meetup #12OdessaFrontend
 
Highway to FPS or true animations in Angular | Odessa Frontend Meetup #11
Highway to FPS or true animations in Angular | Odessa Frontend Meetup #11Highway to FPS or true animations in Angular | Odessa Frontend Meetup #11
Highway to FPS or true animations in Angular | Odessa Frontend Meetup #11OdessaFrontend
 
1000 и 1 блюдо из джаваскрипта | Odessa Frontend Meetup #11
1000 и 1 блюдо из джаваскрипта | Odessa Frontend Meetup #111000 и 1 блюдо из джаваскрипта | Odessa Frontend Meetup #11
1000 и 1 блюдо из джаваскрипта | Odessa Frontend Meetup #11OdessaFrontend
 

More from OdessaFrontend (20)

OAuth2 и OpenID Connect простым языком | Odessa Frontend Meetup #17
OAuth2 и OpenID Connect простым языком | Odessa Frontend Meetup #17OAuth2 и OpenID Connect простым языком | Odessa Frontend Meetup #17
OAuth2 и OpenID Connect простым языком | Odessa Frontend Meetup #17
 
Объекты в ECMAScript | Odessa Frontend Meetup #16
Объекты в ECMAScript | Odessa Frontend Meetup #16Объекты в ECMAScript | Odessa Frontend Meetup #16
Объекты в ECMAScript | Odessa Frontend Meetup #16
 
Фриланс как профессиональная деградация | Odessa Frontend Meetup #16
Фриланс как профессиональная деградация | Odessa Frontend Meetup #16Фриланс как профессиональная деградация | Odessa Frontend Meetup #16
Фриланс как профессиональная деградация | Odessa Frontend Meetup #16
 
Cлайдер на CSS | Odessa Frontend Meetup #16
Cлайдер на CSS | Odessa Frontend Meetup #16Cлайдер на CSS | Odessa Frontend Meetup #16
Cлайдер на CSS | Odessa Frontend Meetup #16
 
Современный станок верстальщика
Современный станок верстальщикаСовременный станок верстальщика
Современный станок верстальщика
 
Викторина | Odessa Frontend Meetup #15
Викторина | Odessa Frontend Meetup #15Викторина | Odessa Frontend Meetup #15
Викторина | Odessa Frontend Meetup #15
 
DRY’им Vuex | Odessa Frontend Meetup #15
DRY’им Vuex | Odessa Frontend Meetup #15DRY’им Vuex | Odessa Frontend Meetup #15
DRY’им Vuex | Odessa Frontend Meetup #15
 
А/Б тестирование: Что? Как? Зачем? | Odessa Frontend Meetup #15
А/Б тестирование: Что? Как? Зачем? | Odessa Frontend Meetup #15А/Б тестирование: Что? Как? Зачем? | Odessa Frontend Meetup #15
А/Б тестирование: Что? Как? Зачем? | Odessa Frontend Meetup #15
 
Пощупать 3д в браузере | Odessa Frontend Meetup #15
Пощупать 3д в браузере | Odessa Frontend Meetup #15Пощупать 3д в браузере | Odessa Frontend Meetup #15
Пощупать 3д в браузере | Odessa Frontend Meetup #15
 
Викторина | Odessa Frontend Meetup #14
Викторина | Odessa Frontend Meetup #14Викторина | Odessa Frontend Meetup #14
Викторина | Odessa Frontend Meetup #14
 
Викторина | Odessa Frontend Meetup #13
Викторина | Odessa Frontend Meetup #13Викторина | Odessa Frontend Meetup #13
Викторина | Odessa Frontend Meetup #13
 
Структуры данных в JavaScript | Odessa Frontend Meetup #13
Структуры данных в JavaScript | Odessa Frontend Meetup #13Структуры данных в JavaScript | Odessa Frontend Meetup #13
Структуры данных в JavaScript | Odessa Frontend Meetup #13
 
Эффективность с большой буквы Э… или любой другой | Odessa Frontend Meetup #13
Эффективность с большой буквы Э… или любой другой | Odessa Frontend Meetup #13Эффективность с большой буквы Э… или любой другой | Odessa Frontend Meetup #13
Эффективность с большой буквы Э… или любой другой | Odessa Frontend Meetup #13
 
Как правильно делать анимацию и добиться 60fps на различных девайсах | Odessa...
Как правильно делать анимацию и добиться 60fps на различных девайсах | Odessa...Как правильно делать анимацию и добиться 60fps на различных девайсах | Odessa...
Как правильно делать анимацию и добиться 60fps на различных девайсах | Odessa...
 
Викторина | Odessa Frontend Meetup #12
Викторина | Odessa Frontend Meetup #12Викторина | Odessa Frontend Meetup #12
Викторина | Odessa Frontend Meetup #12
 
Как пройти собеседование по js? И зачем? vol. 2 | Odessa Frontend Meetup #12
Как пройти собеседование по js? И зачем? vol. 2 | Odessa Frontend Meetup #12Как пройти собеседование по js? И зачем? vol. 2 | Odessa Frontend Meetup #12
Как пройти собеседование по js? И зачем? vol. 2 | Odessa Frontend Meetup #12
 
Путь к WebGL через THREE.js | Odessa Frontend Meetup #12
Путь к WebGL через THREE.js | Odessa Frontend Meetup #12Путь к WebGL через THREE.js | Odessa Frontend Meetup #12
Путь к WebGL через THREE.js | Odessa Frontend Meetup #12
 
Машинное обучение на JS. С чего начать и куда идти | Odessa Frontend Meetup #12
Машинное обучение на JS. С чего начать и куда идти | Odessa Frontend Meetup #12Машинное обучение на JS. С чего начать и куда идти | Odessa Frontend Meetup #12
Машинное обучение на JS. С чего начать и куда идти | Odessa Frontend Meetup #12
 
Highway to FPS or true animations in Angular | Odessa Frontend Meetup #11
Highway to FPS or true animations in Angular | Odessa Frontend Meetup #11Highway to FPS or true animations in Angular | Odessa Frontend Meetup #11
Highway to FPS or true animations in Angular | Odessa Frontend Meetup #11
 
1000 и 1 блюдо из джаваскрипта | Odessa Frontend Meetup #11
1000 и 1 блюдо из джаваскрипта | Odessa Frontend Meetup #111000 и 1 блюдо из джаваскрипта | Odessa Frontend Meetup #11
1000 и 1 блюдо из джаваскрипта | Odessa Frontend Meetup #11
 

Recently uploaded

Measures in SQL (a talk at SF Distributed Systems meetup, 2024-05-22)
Measures in SQL (a talk at SF Distributed Systems meetup, 2024-05-22)Measures in SQL (a talk at SF Distributed Systems meetup, 2024-05-22)
Measures in SQL (a talk at SF Distributed Systems meetup, 2024-05-22)Julian Hyde
 
"Impact of front-end architecture on development cost", Viktor Turskyi
"Impact of front-end architecture on development cost", Viktor Turskyi"Impact of front-end architecture on development cost", Viktor Turskyi
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
 
Exploring UiPath Orchestrator API: updates and limits in 2024 🚀
Exploring UiPath Orchestrator API: updates and limits in 2024 🚀Exploring UiPath Orchestrator API: updates and limits in 2024 🚀
Exploring UiPath Orchestrator API: updates and limits in 2024 🚀DianaGray10
 
IESVE for Early Stage Design and Planning
IESVE for Early Stage Design and PlanningIESVE for Early Stage Design and Planning
IESVE for Early Stage Design and PlanningIES VE
 
Speed Wins: From Kafka to APIs in Minutes
Speed Wins: From Kafka to APIs in MinutesSpeed Wins: From Kafka to APIs in Minutes
Speed Wins: From Kafka to APIs in Minutesconfluent
 
What's New in Teams Calling, Meetings and Devices April 2024
What's New in Teams Calling, Meetings and Devices April 2024What's New in Teams Calling, Meetings and Devices April 2024
What's New in Teams Calling, Meetings and Devices April 2024Stephanie Beckett
 
To Graph or Not to Graph Knowledge Graph Architectures and LLMs
To Graph or Not to Graph Knowledge Graph Architectures and LLMsTo Graph or Not to Graph Knowledge Graph Architectures and LLMs
To Graph or Not to Graph Knowledge Graph Architectures and LLMsPaul Groth
 
Behind the Scenes From the Manager's Chair: Decoding the Secrets of Successfu...
Behind the Scenes From the Manager's Chair: Decoding the Secrets of Successfu...Behind the Scenes From the Manager's Chair: Decoding the Secrets of Successfu...
Behind the Scenes From the Manager's Chair: Decoding the Secrets of Successfu...CzechDreamin
 
PLAI - Acceleration Program for Generative A.I. Startups
PLAI - Acceleration Program for Generative A.I. StartupsPLAI - Acceleration Program for Generative A.I. Startups
PLAI - Acceleration Program for Generative A.I. StartupsStefano
 
UiPath Test Automation using UiPath Test Suite series, part 2
UiPath Test Automation using UiPath Test Suite series, part 2UiPath Test Automation using UiPath Test Suite series, part 2
UiPath Test Automation using UiPath Test Suite series, part 2DianaGray10
 
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptx
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptxUnpacking Value Delivery - Agile Oxford Meetup - May 2024.pptx
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptxDavid Michel
 
JMeter webinar - integration with InfluxDB and Grafana
JMeter webinar - integration with InfluxDB and GrafanaJMeter webinar - integration with InfluxDB and Grafana
JMeter webinar - integration with InfluxDB and GrafanaRTTS
 
Agentic RAG What it is its types applications and implementation.pdf
Agentic RAG What it is its types applications and implementation.pdfAgentic RAG What it is its types applications and implementation.pdf
Agentic RAG What it is its types applications and implementation.pdfChristopherTHyatt
 
Free and Effective: Making Flows Publicly Accessible, Yumi Ibrahimzade
Free and Effective: Making Flows Publicly Accessible, Yumi IbrahimzadeFree and Effective: Making Flows Publicly Accessible, Yumi Ibrahimzade
Free and Effective: Making Flows Publicly Accessible, Yumi IbrahimzadeCzechDreamin
 
AI revolution and Salesforce, Jiří Karpíšek
AI revolution and Salesforce, Jiří KarpíšekAI revolution and Salesforce, Jiří Karpíšek
AI revolution and Salesforce, Jiří KarpíšekCzechDreamin
 
Powerful Start- the Key to Project Success, Barbara Laskowska
Powerful Start- the Key to Project Success, Barbara LaskowskaPowerful Start- the Key to Project Success, Barbara Laskowska
Powerful Start- the Key to Project Success, Barbara LaskowskaCzechDreamin
 
Knowledge engineering: from people to machines and back
Knowledge engineering: from people to machines and backKnowledge engineering: from people to machines and back
Knowledge engineering: from people to machines and backElena Simperl
 
UiPath Test Automation using UiPath Test Suite series, part 1
UiPath Test Automation using UiPath Test Suite series, part 1UiPath Test Automation using UiPath Test Suite series, part 1
UiPath Test Automation using UiPath Test Suite series, part 1DianaGray10
 
Demystifying gRPC in .Net by John Staveley
Demystifying gRPC in .Net by John StaveleyDemystifying gRPC in .Net by John Staveley
Demystifying gRPC in .Net by John StaveleyJohn Staveley
 
A Business-Centric Approach to Design System Strategy
A Business-Centric Approach to Design System StrategyA Business-Centric Approach to Design System Strategy
A Business-Centric Approach to Design System StrategyUXDXConf
 

Recently uploaded (20)

Measures in SQL (a talk at SF Distributed Systems meetup, 2024-05-22)
Measures in SQL (a talk at SF Distributed Systems meetup, 2024-05-22)Measures in SQL (a talk at SF Distributed Systems meetup, 2024-05-22)
Measures in SQL (a talk at SF Distributed Systems meetup, 2024-05-22)
 
"Impact of front-end architecture on development cost", Viktor Turskyi
"Impact of front-end architecture on development cost", Viktor Turskyi"Impact of front-end architecture on development cost", Viktor Turskyi
"Impact of front-end architecture on development cost", Viktor Turskyi
 
Exploring UiPath Orchestrator API: updates and limits in 2024 🚀
Exploring UiPath Orchestrator API: updates and limits in 2024 🚀Exploring UiPath Orchestrator API: updates and limits in 2024 🚀
Exploring UiPath Orchestrator API: updates and limits in 2024 🚀
 
IESVE for Early Stage Design and Planning
IESVE for Early Stage Design and PlanningIESVE for Early Stage Design and Planning
IESVE for Early Stage Design and Planning
 
Speed Wins: From Kafka to APIs in Minutes
Speed Wins: From Kafka to APIs in MinutesSpeed Wins: From Kafka to APIs in Minutes
Speed Wins: From Kafka to APIs in Minutes
 
What's New in Teams Calling, Meetings and Devices April 2024
What's New in Teams Calling, Meetings and Devices April 2024What's New in Teams Calling, Meetings and Devices April 2024
What's New in Teams Calling, Meetings and Devices April 2024
 
To Graph or Not to Graph Knowledge Graph Architectures and LLMs
To Graph or Not to Graph Knowledge Graph Architectures and LLMsTo Graph or Not to Graph Knowledge Graph Architectures and LLMs
To Graph or Not to Graph Knowledge Graph Architectures and LLMs
 
Behind the Scenes From the Manager's Chair: Decoding the Secrets of Successfu...
Behind the Scenes From the Manager's Chair: Decoding the Secrets of Successfu...Behind the Scenes From the Manager's Chair: Decoding the Secrets of Successfu...
Behind the Scenes From the Manager's Chair: Decoding the Secrets of Successfu...
 
PLAI - Acceleration Program for Generative A.I. Startups
PLAI - Acceleration Program for Generative A.I. StartupsPLAI - Acceleration Program for Generative A.I. Startups
PLAI - Acceleration Program for Generative A.I. Startups
 
UiPath Test Automation using UiPath Test Suite series, part 2
UiPath Test Automation using UiPath Test Suite series, part 2UiPath Test Automation using UiPath Test Suite series, part 2
UiPath Test Automation using UiPath Test Suite series, part 2
 
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptx
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptxUnpacking Value Delivery - Agile Oxford Meetup - May 2024.pptx
Unpacking Value Delivery - Agile Oxford Meetup - May 2024.pptx
 
JMeter webinar - integration with InfluxDB and Grafana
JMeter webinar - integration with InfluxDB and GrafanaJMeter webinar - integration with InfluxDB and Grafana
JMeter webinar - integration with InfluxDB and Grafana
 
Agentic RAG What it is its types applications and implementation.pdf
Agentic RAG What it is its types applications and implementation.pdfAgentic RAG What it is its types applications and implementation.pdf
Agentic RAG What it is its types applications and implementation.pdf
 
Free and Effective: Making Flows Publicly Accessible, Yumi Ibrahimzade
Free and Effective: Making Flows Publicly Accessible, Yumi IbrahimzadeFree and Effective: Making Flows Publicly Accessible, Yumi Ibrahimzade
Free and Effective: Making Flows Publicly Accessible, Yumi Ibrahimzade
 
AI revolution and Salesforce, Jiří Karpíšek
AI revolution and Salesforce, Jiří KarpíšekAI revolution and Salesforce, Jiří Karpíšek
AI revolution and Salesforce, Jiří Karpíšek
 
Powerful Start- the Key to Project Success, Barbara Laskowska
Powerful Start- the Key to Project Success, Barbara LaskowskaPowerful Start- the Key to Project Success, Barbara Laskowska
Powerful Start- the Key to Project Success, Barbara Laskowska
 
Knowledge engineering: from people to machines and back
Knowledge engineering: from people to machines and backKnowledge engineering: from people to machines and back
Knowledge engineering: from people to machines and back
 
UiPath Test Automation using UiPath Test Suite series, part 1
UiPath Test Automation using UiPath Test Suite series, part 1UiPath Test Automation using UiPath Test Suite series, part 1
UiPath Test Automation using UiPath Test Suite series, part 1
 
Demystifying gRPC in .Net by John Staveley
Demystifying gRPC in .Net by John StaveleyDemystifying gRPC in .Net by John Staveley
Demystifying gRPC in .Net by John Staveley
 
A Business-Centric Approach to Design System Strategy
A Business-Centric Approach to Design System StrategyA Business-Centric Approach to Design System Strategy
A Business-Centric Approach to Design System Strategy
 

Front-End оптимизация круче, чем у гугла | Odessa Fronted Meetup #4

  • 1. Front End OptimizationFEO Maxim Mazurok Full Stack Web Developer @ CS Odessa
  • 2. What is FEO? Reduce requests Reduce bytes Accelerate render LOAD FASTER
  • 3. How to reduce requests? CSS JS IMAGES Sprites Embedded Replace with CSS Bundle Don’t use 3rd parties Don’t use duplicates Use only what is really needed for particular page
  • 4. How to reduce bytes? CSS HTML IMAGES Format and size Use SVG when possible Minify SVG Minify Lossless compression Use only what is really needed for particular page JS
  • 5. How to accelerate render? CSS HTML IMAGES Use appropriate sizeMinify Use only what is really needed for particular page JS First view ValidateLess code Frontend render Async load Progressive JPEG
  • 6. BONUS How to beat the Google?
  • 7. BONUS How to beat the Google?
  • 8. BONUS How to beat the Google?
  • 9. BONUS How to beat the Google?