Gulbahar Karatas
Gülbahar is an AIMultiple industry analyst focused on web data collection, applications of web data and application security.
Professional experience
She previously worked as a marketer in U.S. Commercial Service.
Research interests
She is a frequent user of the products that she researches. For example, she is part of AIMultiple's web data benchmark team that has been annually measuring the performance of top web data infrastructure providers.
Education
Gülbahar has a Bachelor's degree in Business Administration and Management in 9 Eylul University.
Latest Articles from Gulbahar
How to Bypass CAPTCHA (reCAPTCHA & hCaptcha)
Modern CAPTCHA and human-verification systems use a mix of challenge-response tests, browser signals, server-side token validation, and adaptive challenges. Attempting to bypass CAPTCHA on third-party websites can violate the terms of service or trigger account or IP blocks. The better approach is to use official APIs, reduce request rates, or implement a modern bot-management solution…
Best Free Proxy Services
If you need a proxy without paying, we cover two free routes: We rank options by how often IPs refresh, protocol support (HTTP, HTTPS, SOCKS5), and access limits: If free proxies aren’t reliable enough, the cheapest paid options start at $6 for 10 GB of datacenter traffic. If you’re willing to create an account, several…
Best Facebook Proxies for Account Management
Scraping Facebook at scale is tough due to strong anti-bot protections. We tested the top proxy providers like Bright Data, Zyte, and Decodo. We checked how well they worked with Facebook profile pages, video descriptions, and post content. Here are our picks for the best Facebook proxy servers. * The smallest monthly subscription package for…
Best Python Web Scraping Libraries
Based on my over a decade of software development experience, including my role as CTO at AIMultiple, where I led data collection from ~80,000 web domains, I have selected the top Python web scraping libraries. BeautifulSoup is a Python library for parsing HTML and XML and extracting data from web pages. It sits on top…
Proxy Server Types: Explained & Compared
Proxy servers are grouped by six criteria: traffic flow, IP source, anonymity level, protocol, rotation, and cost. The choice that matters most for web scraping and privacy is the IP source, with residential, datacenter, mobile, and ISP proxies differing in speed and price. The origin of the IP address determines how easily a website can…
Best Chrome Proxy Extensions: Free & Premium
Choosing the best proxy for the Chrome browser is necessary for accessing restricted sites. However, not all extensions work the same way, and two things have changed in the last year: Oxylabs, Webshare, Bright Data, and Decodo include proxies. The rest are managers; you supply the proxy server. Most free claims in this category conflate…
Playwright vs Selenium: When to Use Each
Playwright is a browser automation framework released by Microsoft in 2020. Selenium is an open-source project, active since 2004, that supports a wide range of browsers and languages. Playwright offers fine-grained control for scraping dynamic sources, including single-page applications that load content through AJAX, and supports request interception. Selenium is also used for data collection,…
Oxylabs vs Bright Data: Pricing & Benchmark Comparison
Oxylabs and Bright Data are two of the largest proxy providers used for large-scale web scraping and automation. To better understand how these providers perform, we conducted benchmark tests comparing success rates and response times across three proxy types: Residential proxies showed similar success rates between Oxylabs and Bright Data, with both providers fluctuating between…
Best Social Media Scrapers: 75K Requests Tested
We executed 75,000+ test requests across X, Instagram, LinkedIn, and Facebook to find the most reliable social media scraping API. Whether you need social media data scraping for business information extraction or a high-scale social media scraping solution, our benchmark reveals the top performers. Use the tool below to estimate your monthly budget based on…
Shared Proxies: Benchmark Results & Providers
Shared proxies are the entry point for most scraping operations; they’re cheap enough to test with and abundant enough to scale. That trade-off plays out differently depending on which proxy type you’re buying. In our benchmark across residential, datacenter, and mobile shared proxy networks, the performance spread between providers was wide in some categories and…
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