--- title: "What Are HTTP Cookies And Web Storage? How Do They Affect My Scraping?" slug: cookies-scraping date: 2019-07-15T10:14:22+00:00 modified: 2025-06-11T09:36:39+00:00 permalink: https://brightdata.com/blog/proxy-101/cookies-scraping type: blog --- [ Blog ](https://brightdata.com/blog "Blog") / [Proxy 101](https://brightdata.com/blog/proxy-101) [Proxy 101](https://brightdata.com/blog/proxy-101) # What Are HTTP Cookies And Web Storage? How Do They Affect My Scraping? Learn about the different types of web storage and how it affects your scraping in this blog post! 2 min read [ ](https://brightdata.com/blog/authors/rachel-hollander) [Rachel Hollander ](https://brightdata.com/blog/authors/rachel-hollander) ![Browser window with a cookie icon.](https://media.brightdata.com/2019/07/blog_cookies.png) When accessing many sites, a small pop-up appears asking ‘Do you accept the site’s cookies?” Sites take into account your IP, [user-agent](/video/random_user_agent) (Video Link), previously accepted cookies, and other personal data upon entering their domain. This data is used to determine what language to display information in, what size to show images, and how to make your experience on their website more personalized. ## What are HTTP Cookies and Web Storage? An HTTP cookie is a form of web storage in your browser. Their purpose is to store data received from the server in one request and send it back to the server in subsequent requests. Cookies are convenient when you are shopping online and want the site to recall what is in your cart. Web storage is a mechanism for JavaScript to store data within the browser. Like cookies, web storage is separate for each origin. Web storage is entirely invisible to the server, and it offers much higher storage capacity than cookies. There are two types of web storage: **Local storage**: visible across all tabs of all windows and continues even after the browser is closed. **Session storage**: only visible within the tab where it was created, and it disappears when that tab is closed. Different Types of Local Web storage: **IndexedDB**: used for storing large amounts of data in the browser and can store structured data that’s unrelated to any data on the server. **Evercookies**: utilizes multiple storage areas. These storage areas are less transparent to the user, more challenging to clear and make it easier to see the devices unique user ID. **Zombie cookies**: are HTTP cookies that recreate after deletion. These cookies can collect browser history, and are commonly respawning. When taking part in web scraping operations, understanding how cookies and web storage work can help you to overcome many conventional blocking techniques. By using the right combination of cookies, you can imitate an utterly different user on every request you make. The one thing that cannot be coded is your IP address. By using **[the right proxy network,](/proxy-types)** you can [**easily overcome conventional IP blocking** ](/products/web-unlocker)techniques. To learn more about mastering blocking techniques, contact your Bright Data [Sales Representative](/cdn-cgi/l/email-protection#d6a5b7bab3a596b4a4bfb1bea2b2b7a2b7f8b5b9bb) today! Start free trial[Start free with Google](# "Start free with Google") Rachel Hollander [ View all articles ](https://brightdata.com/blog/authors/rachel-hollander) Table of Contents 400M+ Residential Proxies **Get 50% off** on residential proxies for 6 months! Use code **RESIGB50**. [See pricing](/pricing/proxy-network/residential-proxies "See pricing") 1.3M+ Datacenter Proxies Pay only for the IP, starting from $0.90. [See pricing](/pricing/proxy-network/datacenter-proxies "See pricing") [ ](https://news.ycombinator.com/submitlink?t=What+Are+HTTP+Cookies+And+Web+Storage%3F+How+Do+They+Affect+My+Scraping%3F&u=https://brightdata.com/blog/proxy-101/cookies-scraping) [ ](https://www.linkedin.com/shareArticle?mini=true&title=What+Are+HTTP+Cookies+And+Web+Storage%3F+How+Do+They+Affect+My+Scraping%3F&url=https://brightdata.com/blog/proxy-101/cookies-scraping) [ ](http://www.reddit.com/submit?title=What+Are+HTTP+Cookies+And+Web+Storage%3F+How+Do+They+Affect+My+Scraping%3F&url=https://brightdata.com/blog/proxy-101/cookies-scraping) ## You might also be interested in [ ](https://brightdata.com/blog/ai/openhuman-with-bright-data "Production-Ready Web Access in OpenHuman Through the Bright Data CLI") [AI Antonello Zanini Technical Writer ### Production-Ready Web Access in OpenHuman Through the Bright Data CLI Integrate Bright Data CLI with OpenHuman to enable production-ready web access and data collection for AI agents. 09-Sep-2026 12 min read ](https://brightdata.com/blog/ai/openhuman-with-bright-data) [ ](https://brightdata.com/blog/ai/minimax-m3-with-bright-data "Giving self-hosted MiniMax M3 agents live web access with Bright Data") [AI Satyam Tripathi Technical Writer ### Giving self-hosted MiniMax M3 agents live web access with Bright Data Self-hosted MiniMax M3 agents get live web access using Bright Data’s search and scraping tools. Bypass blocks and CAPTCHAs. 09-Sep-2026 54 min read ](https://brightdata.com/blog/ai/minimax-m3-with-bright-data) [ ](https://brightdata.com/blog/web-data/multimodal-web-scraping-with-minimax "Multimodal Web Scraping with MiniMax") [Web Data Antonello Zanini Technical Writer ### Multimodal Web Scraping with MiniMax Pair Bright Data Web Unlocker with MiniMax M3 vision to extract structured data from images and web page screenshots. 09-Sep-2026 4 min read ](https://brightdata.com/blog/web-data/multimodal-web-scraping-with-minimax)