Web Request / Network Traffic Expert (Browser & HTTP Analysis)
3000 USDI am looking for a highly skilled developer who understands how to inspect, capture, and analyze web requests made by websites (HTTP/HTTPS), even when I do not own the site. The main goal is to identify and document all network calls a specific website makes (API calls, form submissions, headers, payloads, cookies, etc.) so that these requests can be understood and potentially replicated in a separate application or script (for legal, compliant use). Responsibilities Inspect and capture all network requests made by a target website using browser dev tools and/or proxy tools. Identify key API endpoints, request methods (GET/POST/etc.), headers, cookies, query params, and body payloads. Document request/response structures in a clear, developer-friendly format (e.g., JSON examples, parameter lists). Explain any authentication or session mechanisms used (tokens, cookies, headers, etc.). Provide guidance on how to reproduce these requests programmatically (e.g., using Node.js, Python, or similar). Ensure all work respects legal boundaries, public data access rules, and the website’s terms of service. Requirements Strong experience with browser developer tools (Chrome DevTools, Firefox Developer Tools, etc.). Solid understanding of HTTP/HTTPS, headers, cookies, sessions, and common web security mechanisms. Hands-on experience using traffic/proxy tools (e.g., Fiddler, Charles Proxy, Burp Suite, mitmproxy, etc.). Experience with at least one backend language for scripting requests (Node.js, Python, or similar). Ability to analyze obfuscated or minified frontend code to understand how requests are built. Clear written communication skills to document findings in detail. Nice to Have Experience with web scraping (respecting robots.txt / ToS and legal constraints). Experience with automation tools like Puppeteer / Playwright / Selenium. Familiarity with common API patterns (REST, GraphQL, JSON-based APIs).
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8 days3000 USD
3286 23 1 2 8 days3000 USDCurious about harnessing web traffic for insight and opportunity? I specialize in dissecting complex web requests, ensuring each traffic call is mapped and utilized effectively. With advanced experience in Chrome DevTools and traffic analysis, I transform intricate API interactions into actionable data. I've successfully demystified obfuscated code to replicate requests programmatically across various platforms. Let's collaborate to safely and legally leverage network insights, turning them into a powerful tool for your project's success.
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10 days3000 USD
297 10 days3000 USDHello! I fully understand the task. I have experience inspecting web requests, analyzing network traffic, working with DevTools, Burp Suite, Fiddler, proxies, and sniffers. I specialize in detailed analysis of API calls, headers, tokens, cookies, session IDs, forms, and payloads. I work with Node.js and Python. I can reproduce the network behavior of target websites in headless modes with automatic logging and parsing. I document call chains with explanations for technical specialists. I have experience in protection against anti-bot systems. I am ready to discuss the details and get started.
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10 days3000 USD
384 4 0 10 days3000 USDHello!
I'm interested in your proposal to create a website for food product exports.
I'm ready to build a B2B platform on WordPress with responsive design, strong CTAs, and integrations
Message me — let's discuss the details!
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30 days3000 USD
1003 2 0 30 days3000 USDGood afternoon, I am ready to take this project for development, I have extensive experience of over 15 years in the development and support of websites and mobile applications.
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14 days3000 USD
5659 12 0 14 days3000 USDHello,
I specialize in deep traffic analysis, reverse-engineering client-side requests, and fully reconstructing API logic based on frontend behavior.
I have extensive hands-on experience: over the past years, I’ve analyzed the network architecture of 40+ bookmakers, including those with intentionally hidden requests, obfuscation layers, dynamically generated tokens, crypto-based signatures, or non-standard protocols. In many cases, I had to reconstruct requests literally byte by byte when standard tools were no longer enough.
I’ve also dissected Telegram Web / mini-apps, their auth flows, signatures, and internal request structure — essentially breaking them down to understand every detail.
What I can do for your project:
… 🔍 Full inspection of network traffic:
— Capture all HTTP/HTTPS calls
— Identify hidden calls, preflight behavior, lazy-loaded endpoints
— Decode dynamic parameters, tokens, signatures
— Analyze authentication: cookies, JWT, PKCE, session binding, custom headers
🧩 Reverse-engineer request logic:
— Read and understand minified/obfuscated JavaScript
— Reconstruct functions that build or sign network requests
— Map the exact frontend → API flow
📄 Clear, developer-focused documentation:
— Exact request/response examples
— Full parameter, header, cookie descriptions
— Explanation of the authentication mechanism
— Step-by-step instructions for reproducing requests (Python / Node.js / curl)
🔧 Programmatic replication:
— I can replicate requests so the server treats them as authentic
— I can build scripts/modules for automation
🛡 Legal & compliant approach:
I strictly respect Terms of Service, robots.txt, and only work with publicly accessible data.
No harmful actions, no exploitation — strictly compliant analysis.
Why me?
Because I don’t just look at DevTools — I go far beyond what typical tools can show:
— Deep JS obfuscation, Webpack bundles, eval-chains
— Dynamic tokens, crypto-based signatures
— Complex auth schemes
— Multi-step request flows
I have years of experience “taking websites apart” to fully understand and document internal APIs that have no public specification.
If you truly need someone who can break down any web request flow to its atomic level - I’m the right person.
I’m ready to start immediately and can provide examples or do a short test task.
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15 days3000 USD
172 1 1 15 days3000 USDGood day! I am ready to complete this project. Extensive experience in developing various applications.
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28 days2990 USD
15075 32 0 1 28 days2990 USDGood day!
I am Valentin from Arctic Web. We are engaged in IT consulting and full-cycle development: from UX/UI design to web and mobile development and integrations. We are ready to take your project into work and share examples of similar cases in personal messages.
Sincerely,
Arctic Web Team
Freelancehunt
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20 days3000 USD
307 20 days3000 USDHello.
Your project requires a developer who can deeply analyze a website’s network activity and accurately document every HTTP/HTTPS request it makes, including headers, cookies, authentication flows, and payload structures. I will inspect all traffic using DevTools and professional proxy tools, reverse-engineer how the frontend constructs each request, and clearly document every endpoint with example payloads and reproduction steps. Any authentication logic—tokens, cookies, sessions—will be fully explained, along with guidance on how to recreate the requests programmatically in Node.js or Python. I will ensure all work follows legal and compliance standards while delivering clear, actionable technical documentation you can immediately use.
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24 days3000 USD
4097 5 1 24 days3000 USDHello
Thank you for considering my proposal.
I am a senior full-stack developer and web-protocol analyst with extensive experience in inspecting, capturing, reverse-engineering, and documenting complex web request flows always within legal, ethical, and terms-of-service compliant boundaries. I specialize in analyzing front-end/browser initiated traffic, understanding API behavior, and translating network interactions into reproducible, well-structured programmatic workflows.
Technical Approach & Proposed Solution
1. Initial Traffic Inspection & Capture
I will begin by analyzing the target website’s network activity using a combination of:
… Chrome DevTools / Firefox DevTools
Proxy tools such as Charles Proxy, Fiddler, mitmproxy, or Burp Suite (passive mode)
HAR extraction for session replay and request/response diagnostics
This phase focuses on identifying all relevant traffic:
API calls (REST, GraphQL, XHR, fetch, WebSocket upgrades)
Form submissions
Cookie- & token-based session flows
Preflight/OPTIONS requests
Dynamic request-generation logic inside the front-end code
2. Detailed Documentation of Every Network Request
For each unique request pattern, I will provide:
Endpoint URL
Method (GET/POST/etc.)
Headers & required tokens
Query parameters
Request body (JSON/form-data/XML/etc.)
Authentication/session dependencies
Sample request/response blocks (clean, formatted JSON)
This ensures full clarity on how the client interacts with the server.
3. Authentication & Session Analysis
I will identify and clearly explain any mechanisms the site uses, such as:
Cookie-based auth (session cookies, CSRF tokens)
Bearer/Access/JWT tokens
Request signing or hashing workflows (if present)
Rate limiting or anti-automation measures
If necessary, I will also inspect minified/obfuscated JavaScript to uncover how client-side logic constructs dynamic parameters.
4. Reproducible Programmatic Implementation
Once analysis is complete, I will deliver a working guide with code snippets, demonstrating how to reproduce the requests in a backend environment such as:
Node.js (Axios, Fetch, or native HTTPS module)
Python (requests, httpx, aiohttp)
This includes:
Initialization of cookies and tokens
Reuse of session/state
Required headers and payload formatting
Handling redirects, CORS, or signing logic
Error handling and response parsing
I would be happy to discuss details
Thank you for your time and consideration.
I look forward to contributing to your project.
Best regards
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