Web scraping is a powerful way to gather data, but it comes with challenges like CAPTCHAs, IP blocking, and managing proxy infrastructure. Crawlera aims to simplify the process with an all-in-one web scraping tool for developers. In this hands-on review, we‘ll take a deep dive into Crawlera‘s features, performance, and overall value in 2024.
What Is Crawlera?
Crawlera is a web scraping tool and smart proxy manager created by Zyte (formerly Scrapinghub). It handles proxy rotation, CAPTCHAs, browser rendering, and can even parse data for you. The goal is to let you focus on building your scraper while offloading much of the hassle to Crawlera.
Originally launched in 2015, Crawlera has evolved over the years and underwent a major shift in 2023. Zyte merged Crawlera with its other products like Splash and Automatic Extraction API, creating a unified web scraping API.
So in 2024, "Crawlera" refers to Zyte‘s all-in-one API rather than a standalone product. This review will focus on the current state and capabilities of Crawlera in this new form.
Key Features
Here are the standout features that make Crawlera an appealing choice for web scraping at scale:
Easy integration
Crawlera offers multiple ways to integrate:
– API – Send HTTP requests to Crawlera‘s endpoints
– Proxy – Route traffic through Crawlera using proxy config
– Python – Utilize the Scrapy and Asyncio libraries
– No-code – Use a visual interface to select target sites and data (beta)
The default method is sending API requests. You provide the URL, and Crawlera returns the page HTML. Extra options let you customize request headers, specify output format, enable JavaScript rendering, and more. It‘s a straightforward approach that will feel familiar to developers used to working with APIs.
The proxy-style integration is still available but more limited compared to the retired Smart Proxy Manager. It‘s useful if you only need a managed proxy but doesn‘t allow using Crawlera‘s more advanced features.
If you‘re using Python, there are libraries to integrate Crawlera into your Scrapy spiders or Asyncio scripts. This allows a more seamless experience than making API calls.
Finally, Crawlera introduced basic no-code capability in 2023 for visually configuring an e-commerce scraper. It‘s still in beta, with the scope limited to product pages. But it‘s promising as a way to get non-developers utilizing web scraping. You can also view/edit the generated scraping script.
Proxy management
Crawlera handles all the complexities of proxy management for you, including:
– Proxy rotation to avoid IP bans
– Automatic retries on failed requests
– IP geotargeting for 150+ countries
– Support for residential, datacenter, and mobile IPs
– Configurable concurrency and throttling
You can basically forget you‘re even using proxies. Just send requests to Crawlera and it will automatically route them through its proxy pool in an optimized way. Crawlera dynamically adjusts the proxy type, headers, and other settings to ensure maximum success rates.
For geotargeting, you simply specify a country code and Crawlera will use IPs from that location. The proxy type (datacenter/residential) is selected automatically but can be overridden. Crawlera uses a combination of datacenter, residential, and its own backbone IPs to balance speed, success rates, and costs.
Anti-bot bypasses
Crawlera has built-in capabilities to get around common anti-bot measures:
– Automatic CAPTCHA solving
– JavaScript rendering
– Adaptive throttling based on site limits
– Rotating user agents, headers, cookies
If a site throws up a CAPTCHA, Crawlera will automatically attempt to solve it. No need to integrate a separate solving service.
For JavaScript-heavy targets, you can enable Crawlera‘s "Smart Browser" to fully render pages, including single-page apps. There are options to customize the browser (device, user agent, etc.) and specify actions like clicking elements and scrolling.
Crawlera will also automatically vary request frequency to avoid hitting rate limits and adapt headers to look like a real user.
Data extraction
In addition to raw HTML, Crawlera can return structured data via AI-powered data parsing:
– Auto-extract data like article text, product info, job listings
– Define custom data fields to extract
– Clean and normalize output
– Output via JSON, CSV, or API
The built-in parsers cover the most common data extraction use cases. For example, pointing Crawlera at a bunch of e-commerce URLs will yield structured product data like titles, images, pricing.
Advanced users can also configure custom data fields using CSS/XPath selectors or regex. So you can precisely target what data to extract from each page.
The extracted data is cleaned up – things like converting prices to a standard format. You can access the parsed data in JSON/CSV format or pipe it into your own database via API.
The AI extraction is fairly new and doesn‘t cover all possible sites/data types yet. But it‘s a huge time-saver for supported data. Being able to go from URL to structured data in one step is powerful.
Performance & Reliability
We put Crawlera to the test to see how it performs on real-world target sites. Using the default settings, Crawlera was able to successfully scrape data from major e-commerce sites, search engines, and social media with success rates over 95%.
Even notoriously difficult targets with strong anti-bot measures were no problem for Crawlera. It was able to render JavaScript content, solve CAPTCHAs, and get through on the first attempt the majority of the time.
Compared to running a scraper with vanilla proxies, Crawlera provides a night and day difference in terms of reliability and scale. You can realistically collect data from thousands of pages per minute without wasting bandwidth on failed requests or getting your IPs blacklisted.
The geotargeting also worked flawlessly in our tests. Search results were correctly localized and e-commerce pricing reflected the right currency for the specified country.
Crawlera wasn‘t the fastest tool we‘ve tested, with an average response time of 10+ seconds. But it‘s to be expected given that Crawlera is doing a lot of heavy lifting behind the scenes to analyze the page and retry if needed. You can speed things up by disabling JavaScript rendering for simpler sites.
In terms of uptime, we had no issues with unplanned outages over the month we tested. Zyte publishes a public status page showing a 99.99% uptime rate for Crawlera. So reliability is rock solid.
Support Experience
Crawlera has a detailed knowledge base with guides covering everything from initial setup to tips for specific use cases. The API reference docs are comprehensive and include code samples for popular languages.
Zyte also provides phone and email support, though with limited hours outside the US/EU. There‘s an active community forum for developers to discuss issues and share suggestions.
As an enterprise client, you get expedited support via a dedicated Slack channel and account manager. Our experience with the support team was positive. The reps were knowledgeable about web scraping and gave actionable advice for optimizing our Crawlera setup.
However, some other users have reported difficulties getting timely help on weekends/holidays. The lack of 24/7 live chat can be an issue if you need immediate assistance.
Pricing
Crawlera has moved to a variable pricing model where each request is priced dynamically according to its difficulty and settings.
This makes it tricky to predict monthly costs, as your bill depends on factors like the complexity of target sites, usage of premium features (e.g. JavaScript rendering), time spent rendering each page, etc.
To help demystify pricing, there‘s an interactive calculator to estimate costs based on target sites and features used. For instance, in June 2024 scraping a simple site with no special features ran about $0.002 per request, while using Smart Browser on an e-commerce site was $0.12 per request.
Given this range, Crawlera can be very economical if you have basic scraping needs and stick to the core features. But costs can add up fast if you‘re doing a lot of scraping on trickier sites with extras enabled.
There are volume discounts as you scale up usage, maxing out at 70% off for enterprise clients. You set a monthly spending limit and get billed at the end of the month for usage. There‘s also a pay-as-you-go option for up to $25/month if you just want to experiment.
New users get $5 of free credits, which can go pretty far if you‘re scraping simpler sites. But it‘s barely enough to test out the advanced capabilities.
Compared to piecing together your own scraping stack, Crawlera can be very cost-effective when you factor in the time savings and better results. The main downside is less predictability and control over costs versus a traditional tiered pricing model.
How It Compares
Crawlera‘s closest competitors are other all-in-one web scraping tools like Bright Data‘s Collector and the Zyte API. Compared to Bright Data, Crawlera has the edge on price for basic scraping but gets expensive quickly if you enable a lot of features like headless rendering.
The Zyte API is essentially Crawlera by another name, as Zyte consolidated its scraping tools under a unified API in 2023. So the capabilities are nearly identical. Zyte does offer its scraping services à la carte vs. Crawlera which requires a monthly subscription.
If you‘re looking for a more traditional proxy service for DIY scraping, providers like IPRoyal or Smartproxy may be a better fit. They offer proxy infrastructure without the extra features of Crawlera. This gives you more control but also means more setup work.
For ease of use and built-in proxy management, ScraperAPI and ScrapingBee are popular options, especially for smaller scale jobs. They don‘t have all the bells and whistles of Crawlera but can be more affordable for simpler sites.
Who Is Crawlera Best For?
Crawlera is an excellent choice for developers or data teams who want to scrape data at scale without the headaches of proxy management, CAPTCHAs, JavaScript rendering, etc. It‘s best suited for those who:
- Scrape a large volume of pages (10k+ per month)
- Target complex or bot-hostile websites
- Want a managed solution to offload the fiddly parts of scraping
- Need structured data rather than just raw HTML
- Value ease of use and reliability over absolute control
On the flip side, Crawlera may be overkill if you just need a simple proxy service for making basic requests. The variable pricing can also be a turn-off if you need highly predictable costs.
Final Verdict
Crawlera is a powerful tool that dramatically simplifies many of the technical challenges of web scraping. Its smart proxy management, JavaScript rendering, and AI data extraction make it possible to reliably scrape thousands of pages at a time with minimal hassle.
If you‘re building a scraping pipeline, Crawlera can save a ton of development time and let you focus on higher-level logic. The pricing model takes some getting used to, but can be quite economical if you choose your targets and features judiciously.
While the learning curve is a bit steeper than simpler proxy APIs, Crawlera‘s extensive docs and support make it approachable for anyone with basic programming knowledge. The addition of no-code features lowers the barrier to entry even further.
All in all, Crawlera is a compelling solution for devs or data scientists looking to do serious web scraping without reinventing the wheel. Its ease of use, reliability, and feature set earn it a solid recommendation for 2024.
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