How to Scrape Websites Without Getting Blocked in 2026
Getting banned while web scraping? This guide covers the 9 proven techniques to avoid blocks, CAPTCHAs, and IP bans -from proxy rotation to browser fingerprinting -so you can scrape at scale without interruption.
Web scraping in 2026 is harder than ever. Websites deploy multi-layered anti-bot systems that analyze your IP, browser fingerprint, behavior patterns, and request timing -all in real time. One wrong move and you are hit with CAPTCHAs, soft bans, or permanent IP blocks. But scraping is still entirely possible when you know the right techniques. This guide breaks down the 9 most effective methods to scrape websites without getting blocked.
Why Websites Block Scrapers
Before diving into solutions, it helps to understand what you are up against. Modern anti-bot systems like Akamai, Cloudflare, DataDome, and PerimeterX use a layered detection approach:
- Layer 1 -IP reputation: Is this IP from a datacenter, VPN, or real ISP? Has it been flagged before? How many requests has it made recently?
- Layer 2 -TLS fingerprint: Does the TLS handshake match a real browser, or does it look like a Python script or headless browser?
- Layer 3 -Browser fingerprint: Does the JavaScript environment match a real device? Are the screen size, fonts, WebGL renderer, and navigator properties consistent?
- Layer 4 -Behavioral analysis: Is the user scrolling, moving the mouse, clicking? Or just firing HTTP requests at machine speed?
Getting blocked usually means you failed one or more of these layers. The good news: each layer can be handled with the right approach.
1. Use the Right Proxy Type
Your IP address is the first thing any anti-bot system checks, and it is the single biggest factor in whether you get blocked or not. In 2026, the proxy landscape breaks down like this:
- Datacenter proxies: over 90% block rate on protected sites. Anti-bot systems maintain databases of every datacenter IP range and flag them instantly. Only viable for unprotected targets.
- Residential proxies: the best option for large-scale scraping. These are real household IPs from actual ISPs, making them nearly impossible to distinguish from normal users. Pools of 25M+ IPs let you rotate at scale across 190+ countries.
- ISP proxies: ideal for targeted, high-speed scraping where you need session persistence. They combine real ISP trust with datacenter speed and unlimited bandwidth.
For most scraping operations, residential proxies are the go-to because you need massive IP rotation. For focused scraping where session consistency matters (logged-in scraping, multi-page flows), ISP proxies are the better choice.
2. Rotate IPs Intelligently
Simply having good proxies is not enough -you need to rotate them smartly. The goal is to make each IP look like a normal user, not a scraper hitting the same site thousands of times.
- Rotate per request for catalog pages and search results where session does not matter. Each request comes from a different IP.
- Use sticky sessions (same IP for 5-30 minutes) when you need to maintain a logged-in state, navigate multi-page flows, or appear as a returning visitor.
- Geo-match your proxies to the target. If you are scraping a French e-commerce site, use French IPs. Mismatched locations raise red flags.
- Avoid hammering from one subnet. If your provider gives you 50 IPs and they all share the same /24 range, the site will spot the pattern. Subnet diversity matters.
3. Respect Rate Limits
The fastest way to get blocked is to scrape too fast. Even with perfect proxies, blasting 100 requests per second to the same domain will trigger rate limiters. The key principles:
- Add random delays between requests -not a fixed 2-second pause (which looks robotic), but a random interval between 1-5 seconds that mimics human browsing patterns.
- Throttle per domain, not globally. You can scrape 10 different sites aggressively, but hitting one site hard will get you blocked on that site.
- Back off on errors. If you start getting 429 (Too Many Requests) or 503 responses, slow down immediately. Continuing to hammer the server will escalate from a soft block to a permanent IP ban.
- Scrape during off-peak hours when the site has more capacity and your traffic blends in better with lower overall volumes.
4. Set Realistic Browser Headers
Every HTTP request includes headers that tell the server about your browser. Anti-bot systems compare these headers against known browser signatures, and mismatches are an instant red flag.
- User-Agent: rotate through a list of current, real User-Agent strings. Do not use a single static UA, and definitely do not use the default UA from your HTTP library (like
python-requests/2.31). - Accept, Accept-Language, Accept-Encoding: these must match what a real browser sends. Chrome, Firefox, and Safari each have different default values.
- Referer: include a realistic referer. If you are scraping a product page, the referer should be the category page or a search engine, not empty.
- Sec-Ch-Ua headers: modern Chrome sends Client Hints headers that reveal the browser brand and version. If your UA says Chrome 124 but your Sec-Ch-Ua says Chrome 110, that is an instant flag.
The key rule: every header in your request should be internally consistent and match what a real browser of that type would send.
5. Handle TLS Fingerprinting
TLS fingerprinting is one of the most effective anti-bot techniques in 2026, and most scrapers do not even know it is happening. When your client establishes an HTTPS connection, the TLS handshake reveals a unique fingerprint based on the cipher suites, extensions, and elliptic curves your client supports.
Standard HTTP libraries (Python requests, Node axios, Go net/http) have TLS fingerprints that look nothing like real browsers. Anti-bot systems maintain databases of these fingerprints and block non-browser clients instantly.
Solutions:
- Use a TLS-spoofing library like curl_cffi (Python), got-scraping (Node.js), or utls (Go) that can mimic real browser TLS fingerprints.
- Use a real browser via Playwright or Puppeteer -the TLS fingerprint will naturally match because it is a real browser engine.
- Keep fingerprints updated. Browser versions change their TLS signatures with each release. Using a Chrome 110 fingerprint when Chrome 124 is current is suspicious.
6. Use Headless Browsers When Needed
For JavaScript-heavy sites that render content client-side, or sites that require browser-level interaction (clicking, scrolling, form submission), you need a real browser engine. The main options in 2026:
- Playwright: the current industry standard. Supports Chromium, Firefox, and WebKit. Better stealth capabilities than Puppeteer out of the box.
- Puppeteer: still widely used for Chrome/Chromium automation. Requires additional stealth plugins to avoid detection.
- Camoufox: a purpose-built anti-detect Firefox browser designed specifically for scraping. Handles fingerprint masking automatically.
Important: headless browsers are 10-50x slower than HTTP-based scraping. Only use them when the target requires JavaScript rendering or browser interaction. For API endpoints and server-rendered pages, stick to HTTP requests -they are faster and use less resources.
7. Solve CAPTCHAs Efficiently
Even with perfect proxies and browser emulation, some sites will serve CAPTCHAs. In 2026, the main CAPTCHA types you will encounter are:
- Cloudflare Turnstile: now the most common. It runs invisible challenges in the background and issues a token. Can often be bypassed with proper TLS fingerprinting and residential IPs.
- reCAPTCHA v3: scores your "humanness" from 0 to 1 based on behavior. High-quality residential proxies with realistic browser fingerprints consistently score above the blocking threshold.
- hCaptcha: image-based challenges. When you cannot avoid them, use a CAPTCHA-solving service (2Captcha, CapMonster, or AI-based solvers) to handle them in your pipeline.
The best strategy is to avoid CAPTCHAs entirely by using quality proxies and realistic fingerprints. Solving them should be a fallback, not your primary approach -it adds latency and cost to every request.
8. Monitor and Adapt
Anti-bot systems evolve constantly. What works today might fail next month. Build monitoring into your scraping pipeline:
- Track your success rate per target site. If it drops below 95%, something has changed -investigate before scaling up.
- Log block types. Are you getting 403s (IP blocked), CAPTCHAs (fingerprint suspicious), or empty pages (JavaScript challenge failed)? Each requires a different fix.
- Rotate strategies, not just proxies. If a site starts blocking your approach, switching from HTTP requests to a headless browser (or vice versa) can restore access.
- A/B test configurations. Try different proxy types, rotation speeds, and delay patterns on the same target to find the optimal setup.
9. Use the Right Proxy Provider
All of the techniques above depend on one foundation: the quality of your proxy infrastructure. The difference between a premium proxy provider and a cheap one is the difference between 99% success rates and constant blocks. Here is what to look for:
- Real ISP-registered IPs -not re-labeled datacenter IPs marketed as "residential"
- Large, diverse IP pools -millions of IPs across many subnets and ASNs
- Geo-targeting -country and city-level targeting for accurate local scraping
- Fresh IPs -regularly refreshed pools with IPs that have not been burned on your target sites
- Reliable infrastructure -99.9%+ uptime with consistent low latency
At Murphy, we provide both residential proxies (25M+ IPs across 190+ countries with city-level targeting) for large-scale rotation and ISP proxies (static, unlimited bandwidth, real ISP trust) for session-based scraping. Our IPs are sourced directly from tier-1 ISPs, tested before deployment, and engineered to deliver 99%+ success rates against the toughest anti-bot systems in 2026.
The sites you are scraping will keep upgrading their defenses. Make sure your proxy infrastructure is built to keep up.