Illusion of Expensive Monthly Subscription
When you first receive a quote for a web crawling subscription service, you'll likely have the same reaction as most people: "Isn't it more expensive than paying for development costs once?" That's correct. If you only look at the first month, individual billing almost always seems cheaper.
The issue is that the cost of web crawling doesn't end after the first month. Maintenance costs accrue throughout the data collection process, and every time a new site is added, development costs arise again. Therefore, when comparing billing methods, you should consider not just the initial quote but the Total Cost of Ownership (TCO) for one year. Fortunately, most companies budget on an annual basis, aligning the comparison criteria and budget cycle.
This article provides a framework for directly comparing these costs.
Breakdown of Costs for Two Methods
When you compare the actual costs incurred over one year side by side, it looks like this:
| Cost Item | Individual Billing | Subscription |
|---|---|---|
| Initial Development Cost | Incurred as one-time development cost per site | Included in the monthly fee |
| Site Additions | Development costs reoccur with each addition | Included in the monthly fee |
| Item Additions/Changes | Billed per item | Included in the monthly fee |
| Maintenance (Site Changes) | Billed per item or free depending on the vendor | Included in the monthly fee |
| Operating Costs (Servers, Proxies, etc.) | Billed monthly | Separate operating costs based on data collection volume |
| Early Downsizing/Termination | Varies by contract (common restrictions) | Adjustment/early termination possible |
The key is the left column. In individual billing, only the first line (initial development cost) and operating costs are typically shown on the initial quote, while the rest of the lines appear on invoices throughout the year. This is why the first month seems cheaper.
Framework for Calculating 1-Year TCO
When you put it into formulas, the comparison becomes simpler.
1-Year Total Cost for Individual Billing
1년 TCO = 초기 개발비
+ (사이트·항목 추가 횟수 × 건당 개발비)
+ (사이트 변경 대응 횟수 × 건당 유지보수비)
+ (월 운영비 × 12)
1-Year Total Cost for Subscription
1년 TCO = (월정액 × 12) + 규모에 따른 운영비
Two variables to pay attention to in the individual billing formula are number of additions and frequency of changes — both appear as 0 at the time of contract and are not included in the quote. However, as you use the data, you may want to expand the collection targets, and the structure of the target sites may change unexpectedly. As these two variables increase, the 1-year TCO for individual billing deviates from the initial quote.
On the other hand, the subscription formula essentially has only one variable (operating cost scale). Since the rest are constants, the budget set at the beginning of the year remains consistent until the end. This is the value of budget predictability that subscriptions offer, separate from total cost comparisons.
Turning Point: Where Subscriptions Become Cost-Effective
When you overlap the two formulas, three conditions emerge that determine the advantages and disadvantages.
- Number of Sites — The more collection targets, the more the initial development cost and maintenance costs increase with individual billing.
- Frequency of Changes — The more frequent additions or changes to sites/items during collection, especially for targets with frequent blocking or redesign (e.g., large e-commerce platforms, SNS), the larger the fluctuating items in individual billing.
- Duration — The longer you use it, the more the value of maintenance included in the subscription accumulates. If it's a one-time thing, this value is 0.
So, to be fair, it goes like this.
When Individual Billing is Advantageous: Few collection targets, confirmed items, and data that are received once or used briefly. In this scenario, you won't need the items included in the subscription, making individual billing cheaper.
When Subscriptions are Advantageous: Multiple collection targets or plans to expand, and continuous data collection is necessary. In fact, some Hashscraper customers have reported that the total cost was about 40-50% lower compared to individual billing methods.
Costs Beyond Quotes are Still TCO
Apart from the quantifiable items, there are two more costs that you will feel over a year of operation.
- Negotiation/Procurement Costs: With individual billing, there is a cycle of requesting quotes, internal approvals, and procurement each time a site is added. The gap between the time data is needed and when actual collection starts is also a cost.
- Data Gap Risk: If maintenance is negotiated per item, data interruptions occur during site changes and repair negotiations. It's often difficult to retroactively collect data for past periods, making data gaps an irreplaceable cost.
These two are not included in any quotes but are essential items not to overlook in a 1-year TCO comparison.
Self-Assessment: Which Side Are We On?
Count how many of the following items apply to you.
- You want to collect data from more than 3 sites (or plan to expand).
- You need to continue receiving data for more than 6 months.
- Collection items are not yet finalized, and adjustments are expected while using them.
- Sites with strong blocking or frequent redesigns (e.g., large e-commerce platforms, SNS) are included.
- Operating on an annual budget, and additional cost approvals midway are burdensome.
If 3 or more apply, there is a high likelihood that a subscription is more advantageous in terms of 1-year TCO. If 0-1 apply, starting with individual billing (or one-time collection) is more reasonable. If it's unclear, get quotes for both methods and plug them into the above formulas — even with conservative estimates for additions and changes, the direction will be clear.
Frequently Asked Questions
Q: What exactly is included in the monthly subscription fee?
It includes crawler development, maintenance, and additional development. Adding more sites or changing items does not incur additional development costs. Operating costs such as servers and proxies proportional to the data volume are reflected separately.
Q: Is it a 1-year commitment? What if I want to cancel midway?
You can adjust the scale or cancel midway if needed. The cancellation terms are a more critical variable in TCO comparisons than you might think, so be sure to confirm them before any contract, regardless of the method.
Q: I'm currently operating on individual billing. Can I switch to a subscription?
Yes, it's possible. If you provide the current data collection targets and items, we can compare the current expenditure structure with the 1-year TCO of a subscription for guidance.
Recommended Reads
- Why Do Web Crawling Quotes Vary by Vendor? — Cost structure and hidden costs
- How to Choose a Web Crawling Vendor — 7 things to check before outsourcing data collection
- Why Do Large Companies Give Up on Web Crawling?
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If you let us know your data collection targets and items, we will calculate the 1-year total costs for both individual billing and subscription methods side by side.
