There’s a sea of web scraping solutions to choose from.
Each with its own language, pricing models, and a (somewhat) unique set of features, making it easy to fall into decision paralysis. However, if you understand your project, the rest is just cutting through the noise and focusing on the most fundamental aspects of web scraping.
To simplify things, we’ll group the tools into two categories:
- Off-the-shelf tools – these are usually subscription-based and “cloud-run.” These done-for-you tools take care of the entire data extraction process (so you have to let go of control) and only require minimal input, like the target website and elements to scrape.
- Web scraping APIs – for the most part, these are subscription-based. Instead of taking complete control, they are designed to automatically handle web scraping complexities like proxy rotation, CAPTCHAs, etc. These tools are integrated into your scripts, giving you control over how data is filtered, extracted, and formatted.
There are also data collection tools built to take care of a specific problem, like proxy providers, but these, in our opinion, are not scraping solutions but services you can use to build your own tools.
Note: You don’t want to go on this road for many reasons, but the final decision is yours. Still, check our in-house vs. out-house breakdown before committing to fully custom-made. Now that we have a common language, let’s dive into the 10 factors to consider for your solution:
1. In-house Expertise
The first question you need to ask yourself is how tech-savvy your team is, as it will heavily influence what tools you’ll be able to use and to what degree. Every tool can be grouped into one of these:
- On one end, you’ll find off-the-shelf tools that automate the entire process without any input, so you won’t need any technical knowledge to use them.
- In the middle, we can find scraping APIs that take care of many of the most complex technical problems but still require some programming knowledge to build the scripts.
- While at the other end of the spectrum are scraping services like proxy providers and CAPTCHA handlers, which help you with certain aspects of your project, the rest is up to you. This means you will require a high level of programming skills to use.
Note: We’re just mentioning these last ones because they are part of the spectrum we’re talking about. For example, a done-for-you tool will be better for you if your team is primarily non-technical professionals like marketing folks or business analysts without programming skills.
Your team will just need to think about the data they need and target sites and learn how to use the software’s interface. Of course, these are usually more expensive and aren’t as customizable as other solutions; a worthwhile trade-off to make when you consider that:
- You require no technical knowledge
- Engineer costs and time are cut down
- You won’t have to worry about maintenance
- No need to constantly monitor the infrastructure
On the contrary, if your team has a mid to high programming skill level, an API will save you money and give you more control over your data. These tools are usually easy to integrate and take care of many complexities automatically (so you won’t need to configure a thing).
2. Tech Stack and Internal Processes
Now that you know which type of data collection solution you’ll need, it’s time to think about integrating the tool into your tech stack.
With Scraping APIs, start by thinking about what technologies you’re using. If you need to change your infrastructure or learn a new technology to make it work, it will add unnecessary pressure to the process. Instead, look for a solution that works right away.
With off-the-shelf solutions, on the other hand, have a particular way of doing things. For example, they have a specific way to take data out of them and available integrations. The solution you choose must be easy to connect to the rest of your processes and tools.
Always check if the tool can connect to your custom dashboards and whether or not it can integrate with the third-party tools you’re currently using. Otherwise, you’ll end up having to hire technical professionals to build these integrations.
At that point, it’s better to go with a web scraping API.
3. Scraping Frequency
Ask yourself how many times you’ll need to run your scraper and how often. Handling a one-time job is different from creating a monitoring system. The scraping frequency will affect many other factors, like scraping speed and price.
Suppose you need high-frequency scrapes (for example, every 5 – 10 minutes). In that case, you’ll want a solution with a high success rate and resilience to anti-scraping techniques, but that doesn’t eat too much of your budget for every request, or you’ll risk making your project unviable.
However, one-time jobs require less focus on scalability, so going for a more expensive but faster-to-implement solution would be better than a more affordable but more tech-heavy solution.
Even with the technical knowledge, sometimes an off-the-shelf solution is a better choice if you have the budget and the tool fits your needs, as this will save you a considerable amount of work.
4. Scope and Scalability
Getting almost real-time data (high-frequency scrapes) from a couple of pages is not the same as getting the same data from thousands of URLs. When working with large websites, you might be more interested in the success rate (getting the data) than the speed of your solution. While for other projects, speed is crucial due to time constraints.
When thinking about the scope of your project, ask yourself:
- How much data will you need to scrape? – some scraping solutions could charge more based on the size (gigabytes) of the datasets – which is calculated by the file size of the pages you’re scraping – or might have a hard time processing large amounts of data. In other terms, there are times when it makes more sense to look for a solution that charges per request instead of data size and vice versa.
- How many requests will you send daily, weekly, and monthly? – there are two reasons for this question: retries and price. Tools with a low-success rate will need to send more requests to get you the data, adding delays to your project. If you want to send a high number of requests, every second matters, but maybe a few retries here and there might not be such a problem for a small project.
In terms of scalability, the tool should be able to handle an increasing number of requests and jobs without decreasing its success rate. This is because your data needs will most likely keep growing as your business grows, and you want a tool that can grow with you.
On that note, a very important factor to consider for scalability is concurrency – the ability to handle several requests simultaneously.
As your data needs keep growing, you’ll find that sending one request at a time won’t be enough to keep a smooth data stream. Instead, you’ll experience bottlenecks delaying your entire operation.
For large projects, the number of concurrent requests a tool can handle it’s crucial for scalability and speed. No matter how fast a tool can process a request, a tool that can successfully handle 100 to 400 concurrent requests will always be faster and more efficient.
If the tool can’t scale well, you’ll have to replace the entire infrastructure later on, which can translate into revenue loss and missing opportunities.
5. Data Control
How do you need data to be delivered to you? Do you need a specific format like JSON? Do you need this data fed to another system or stored in a database? These are essential questions to answer before committing to a solution. Especially when using a done-for-you approach.
In the case of web scraping APIs, you have control over how data is exported, and you’ll be the one integrating your scrapers into other systems like databases.
However, cloud-based scraping software usually manages your data for you and allows you to download it in several formats based on your needs. Wanted or not, your data will always be stored on your provider’s server before getting into your hands.
Some vendors also provide tools for analysis, which can be an advantage. Ultimately, it all comes down to how much control over the data you’re scraping you’re comfortable giving away, and the level of privacy you need for your project.
6. Site Complexity
For example, it’s much simpler to scrape static HTML websites than scrape single-page applications (SPAs) that require a layer of rendering for your scraper to access the data.
In that sense, you’ll need to consider what websites you’ll be scraping and ensure the solution you choose can handle it correctly.
For example, ScraperAPI uses a headless browser instance to fetch the page, render it (as your regular browser would), and sends the HTML data back without you having to do more than just add a render=true parameter in your request.
Note: It’s crucial to take this rendering aspect out of your local machine, so avoid using headless browsers yourself while scraping. This is because you put your IP and API keys at risk when your headless browser fetches the resources it needs for rendering the page.
You also need to think about how changing these pages are. If a website changes its HTML structure or CSS selectors, it can easily break your scripts or scraping job (in the case of off-shelf tools).
Some solutions provide done-for-you parsers, allowing you to skip the maintenance of the scraper and collect formatted data (usually JSON) consistently without worrying about changes in the target site.
A good example is ScraperAPI’s Google SERP parser. After constructing your search query URL, ScraperAPI will return all SERP information in JSON format, saving you time and money when collecting search data.
7. IP Blocking/Anti-Scraping Resilience
One of the main reasons to use a web scraping tool is to avoid getting your bots blocked by anti-scraping mechanisms (like CAPTCHAs, Honeypot traps, Browser fingerprinting, etc.) and putting your IP at risk of bans and blocklists.
You’ll want to use a tool that:
- Counts with a healthy, ever-expanding, and well-maintained proxy pool
- Has a mix of data center, residential and mobile proxies in over 50 locations across the globe to better fit your needs – although is best if you don’t have to worry about these and the solution shuffles this for you automatically
- Uses statistical analysis and machine learning to determine the best combination of headers and IP addresses to guarantee a successful request
- Rotates IPs between every request automatically when needed
- Bypasses captchas and other bot protection mechanisms
- Use dynamic retries to ensure a successful request
ScraperAPI has all of these features and more (check our documentation here), but self-promotion aside, you’ll want to have these features at your disposal to be able to scale your data collection.
8. Geo Targeting
Some websites serve different content based on your geographic location (e.g., eCommerce sites and search engines), while others can completely block you from accessing them. If your target websites fall into one of these two categories, then you’ll need to consider whether or not the tools you’re comparing count with the proxies you’ll need.
Let us explain it better.
When you use a proxy, your requests are not (necessarily) sent from an IP address from your country. Tools dynamically assign an IP address – in many cases, like ours, based on machine learning and statistical analysis – and the server will respond with the appropriate HTML document based on that IP geolocation.
Let’s say you send five requests to scrape the US version of an eCommerce category series. The web scraping tool will send each request with a different IP, and, for the sake of this example, imagine that it uses an IP from the US, Canada, the UK, Italy, and France.
If the server has a different version of the page for each of these countries, you’ll receive that page’s version instead of only the US version of all pages. So you’ll end up with one page in Italian, another in French, and three in English – but most likely with different content, pricing, and vocabulary. That’s what we mean by accurate data.
By using geo targeting, you can specify from where you want your requests to be sent and get data as if a user from that country is going to the website. On the other hand, it’s very common for certain websites to block traffic from certain locations (think of international media being banned by totalitarian regimes), so changing the IP location will allow you to access these geo-blocked pages and protect your identity from being spotted.
If your project requires you to get localized data or access geo-blocked pages, geo targeting is a must.
Note: It’s worth noting that some providers charge extra for this feature while others, like us, offer it for free.
9. Customer Support
This is more related to the provider and less about the tool itself, but more likely than not, you’ll run into challenges, and having a support team you can count on is crucial.
When considering a tool, think about the provider and their service. Some companies will help you set up your scrapers and help you optimize them where possible, while others might just answer your emails a couple of times a month.
It’s also important to understand how these providers offer their technical support. Sometimes, they just allow you to email them or submit a ticket. While in other cases, providers – like us – offer a dedicated slack support channel to respond in a more personalized and quick manner.
10. Pricing Structure and Transparency
Web scraping has gotten harder over the years, requiring new and better techniques to keep your pipelines running. This has also made pricing web scraping solutions a little bit trickier than before.
That being said, it’s important to understand how much you’re paying for how much data, which is not always very clear. Some tools charge by data collected size (in terms of bytes, gigabytes, etc.), while others charge a subscription for a total number of API credits.
To help you understand the pricing structure of most modern web scraping tools, we wrote a web scraping pricing guide, explaining every detail and the language necessary to avoid hidden fees.
However, here are a few things to keep in mind:
- Check the tool’s documentation to understand how they charge for data – Some off-the-shelf solutions like Octoparse say they charge per website, but they actually use something called “workflow” (an automation task), so if you have to scrape 20 times that same website, they’ll charge you for each workflow run.
- Pricing must be as transparent as possible, and every detail should be easy to find on the pricing page or in the documentation – that’s why we have a section dedicated to the cost of requests, breaking it down for each functionality.
- Many scraping solutions offer similar functionality but price them differently – for example, ScraperAPI offers free geo targeting in all its plans, while ScrapeIN charges 20 API credits.
We go into more detail on our pricing guide, linked above.
To summarize, make a list of all the requirements you’ve defined through the previous nine factors, and now look at how these influence the pricing of your options. You’ll quickly notice the best fit for you in functionality, scalability, and price.
Hopefully, we’ve given you a framework you can use for every project and consider every vital aspect to make a better buying decision.
If you want to give ScraperAPI a try, you can create a free account and enjoy 5000 free API credits with all our functionalities enabled – no credit card needed –, so you can see for yourself whether or not it’ll work for you.
You can also contact our sales team with your requirements. We’ll help you make the best choice for your case, and if ScraperAPI doesn’t make sense, we’ll be transparent about it.
Until next time, happy scraping!