Today we cover another important topic: search engine development, the process of how to develop a search engine like Google, and how much such a project really costs.
At Azati, we develop and deliver commercial search engines. These engines are completely different from regular ones like Google search engine, Yahoo, Bing, Baidu, and others. Many facts about professional search engine development remain unobvious and are hard to understand without a strong technical background.
Key Steps and Technologies in Search Engine Development
In this article, we provide detailed information on the main types of commercial search engines and the key factors that determine the total search engine development cost.
The Four Core Steps to Create a Search Engine
To find the data in the document that is related to the user query we should:
- Determine the pattern: Identify what the user is searching for;
- Download the page from the database: Retrieve relevant documents;
- Analyze the page (in search of the pattern): Process and match content;
- Build a Search Engine Result Page (also known as SERP): Display results.
⚠️ Performance Bottlenecks:
There are two bottlenecks here, and both are related to the page size:
- It might take some time to download the page (document);
- It usually takes much time to find the pattern, if you are using the standard search approaches.
Real-World Processing Speed Examples
Typically, it requires 2 ms to process a document (HTML page) of a WordPress website (written in PHP). For instance we have about 200 pages. They are processed within 400 ms or half a second. It seems fast enough.
But now imagine that we deal with an e-book library, where millions (!) of books with hundreds of pages are stored. Surprisingly, it takes little time to process it as we do not need to download a single page from the database, we download the whole e-book at once.
The Challenge of Unprocessable Content
So, when you know this, here's another fact: there are many documents that a search engine cannot quickly process – images, videos, encrypted formats, etc.
📊 Content Processing Difficulty:
| Content Type | Processing Speed | Indexing Difficulty |
|---|---|---|
| Text/HTML | Fast (2ms/page) | Low |
| PDF Documents | Medium (5-10ms) | Medium |
| Images | Slow (requires OCR) | High |
| Videos | Very Slow | Very High |
| Encrypted Files | N/A | Cannot Process |
Lessons from Google Search Engine Development and Modern Algorithms
You might have thought: "Why can't Google search engine show us everything we want? Can i make a search engine that finds relevant information better?"
Yes, it can, actually. Every year, the Google search algorithm becomes more accurate and advanced. Although the search quality improves, there are still many files that cannot be processed even today. Therefore, both public and commercial search engines require careful engineering of indexing algorithms, crawler technology, and database optimization to find relevant data.
Beyond the Price Tag: Factors That Influence Search Engine Development Cost
From our point of view, the search engine development cost is not the only factor customers should care about when planning a project. There is another aspect that must be considered - long-term maintenance and scalability.
Understanding Search Hub Infrastructure
If we look at the big brother, Google search engine, we can see that there are many servers (hundreds of thousands, probably) processing data in real time and, what is more, simultaneously.
In this way, Google processes the same data over and over again to make SERP fit the user query. It is the best and the most effective way to monitor changes, mainly if there are sextillions of pages available.
The "Footprint" Approach: How Modern Search Engines Work
Large search engine developers use complex algorithms to look for "footprints" in the document. For example, we do not need to collect all the data about the book when we can spot the key thesis in its summary.
This way, we recognize the footprint that contains the necessary data: author, titles, summary, brief description, keywords, publication data, etc., and add this footprint to a separate database.
When the user instructs Google search engine to find something, the system looks for the pattern in the footprint database first. If it doesn't find a matching answer, it performs a deep search. If this is the case, the pages are generated at a slower pace.
Cost Breakdown: How Much Does It Cost to Build a Search Engine?
If there are hundreds of thousands of servers needed to perform a search, so how much does it cost to develop a search engine like Google?
Well, nobody knows the exact estimates. The only thing we know for sure – a lot.
Google is now setting up new powerful servers to process data in a quicker, more accurate and secure way. Thus, even the most complicated and in-depth queries will be performed in an instant and generate precise results.
Two Proven Approaches for Commercial Search Engines
We discovered how Google works. Now let’s see how commercial search engines process data.
We can use two approaches:
Approach 1: High-Performance Search Engine
Develop a lightning-fast search engine powered by solid mathematical knowledge, modern databases, SSD drive and coded with the fast programming language like C++
Approach 2: Footprint Database
Develop a "footprint" database for optimized pattern matching
These two approaches affect search engine development costs. Customers usually prefer the first one as it is more accurate but slightly more expensive.
Average Budgets and Price Ranges for Custom Search Engine Development
Search Engine Pricing Breakdown
Option 1: DIY - Create Your Own Search Engine from Scratch
If you want to build a search engine from scratch in Python or PHP, for example, you can do it for free after completing some courses at Udemy, Mindvalley, EDX. It requires some programming skills though. In case of paid courses, it will cost you up to $100.
Best For: Learning purposes, small personal projects, developers wanting to understand search fundamentals.
Option 2: Google-Scale Search Engine
If you want to build a search engine like Google (with a decent search quality), we would say it might cost you about $100M (for the prototype) – including costs for servers, bandwidth, colocation, electricity and so on. Maintenance costs for the existing cluster may go up to $25M per year.
Best For: Large corporations, tech giants, global search platforms.
Option 3: Commercial Business Search Engine ⭐ Most Popular
If you want to create a search engine for your business – be it the insurance, bioinformatics, healthcare, e-commerce, or other company – the search engine development costs may range from $10,000 to $60,000, with a low maintenance fee.
Best For: Medium to large businesses, e-commerce platforms, enterprise databases, specialized industries.
Search Engine Use Cases by Industry
Search Engine Use Case Examples:
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E-commerce: Product search with filters, autocomplete, and recommendations;
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Healthcare: Medical records search, drug information databases;
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Legal: Case law research, document discovery systems;
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Real Estate: Property search with multiple criteria;
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Education: Course catalogs, research paper databases;
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HR/Recruiting: Resume search, talent acquisition platforms;
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Media: Content libraries, video archives;
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Enterprise: Internal knowledge bases, document management.
Comparison: Google vs Commercial Search Engines
Feature
Google-Scale
Commercial Business
Initial Cost
$100M+
$10,000-$60,000
Annual Maintenance
$25M+
$2,000-$10,000
Data Scale
Billions of pages
Thousands to millions
Infrastructure
Massive server farms
Cloud or dedicated servers
Development Time
Years
3-6 months
Customization
Limited
Fully customizable
Best For
Global public search
Specific business needs
Final Thoughts: Planning Your Search Engine Development Project
| Feature | Google-Scale | Commercial Business |
|---|---|---|
| Initial Cost | $100M+ | $10,000-$60,000 |
| Annual Maintenance | $25M+ | $2,000-$10,000 |
| Data Scale | Billions of pages | Thousands to millions |
| Infrastructure | Massive server farms | Cloud or dedicated servers |
| Development Time | Years | 3-6 months |
| Customization | Limited | Fully customizable |
| Best For | Global public search | Specific business needs |
As you can see, building a search engine has several aspects you should consider besides cost.
The answer to the question "how to develop a search engine like Google" covers different nuances which fully depend on your needs, budget and the main objective: whether you want to create your own search engine or compete with global leaders.
Quick Decision Framework:
Choose DIY Learning ($0-$100) if:
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You want to learn programming;
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Building for personal projects;
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Have 3-6 months to dedicate.
Choose Commercial Development ($10K-$60K) if:
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You have specific business needs;
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Need professional support;
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Want to create a search engine for your database;
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Require customization and scalability.
Choose Enterprise/Google-Scale ($100M+) if:
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Targeting global market;
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Processing billions of documents;
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Competing with major search engines.
Need a custom search engine tailored to your business goals? Get in touch with Azati and let's build a solution that works for your data and users.
