Search engines: the librarian trying to catalog the entire Internet
Agnieszka decided to check whether Greg and his colleague understood the difference between a search engine and a web browser. She was about to begin the longest library visit in Internet history. 🔎📚🤣
— Which search engine do you use? — asked Agnieszka.
— Google — Greg replied.
— I use Opera — said his colleague.
Silence. Agnieszka put down her mug.
— Opera is a BROWSER.
— What's the difference?
— The difference between a bus and the information desk that tells you which stop you need!
A browser is the vehicle; a search engine is the guide
Agnieszka unfolded a map of the city.
— A web browser is an application that opens and displays web pages. Chrome, Firefox, Opera, Edge and Safari are browsers.
— And Google?
— It depends which product you mean. Google Search is a search engine. Google Chrome is a browser. One company makes both.
— Microsoft?
— Bing is Microsoft's search engine. Edge is its browser.
— So I can use Google in Opera?
— Yes. Or Bing, DuckDuckGo or another supported search engine.
— Can I use Bing in Chrome?
— Of course, if I configure it that way.
A browser is the car you use to visit a web address. A search engine is the information desk that helps you find the address when you don't know it.
— So saying “I drive Google” answers the wrong question?
— If you mean Google Search, it's not even a car!
Why search if there's an address bar?
— Then why do I type “best dumpling recipe” into Opera and immediately get results? — asked Greg's colleague.
— Modern browsers combine address entry and search. When you enter a phrase instead of a known website address, the browser may send your query to the configured search provider.
— Opera isn't crawling the entire Internet for me?
— Typing a query into its address bar doesn't mean Opera itself runs an independent search engine. It can use a selected search service.
— And if I type https://xo.pl/?
— The browser tries to open that site directly; you don't need the search engine to locate it.
— I can know an address and never ask Google?
— Exactly.
— Then why search?
— When you don't know the address or need information spread across multiple sites.
— I've been asking the librarian questions while believing I was talking to the driver?
— Precisely.
The librarian doesn't read the whole Internet every second
Agnieszka took Greg into a huge library. Tiny robots rolled between the shelves carrying stamps.
— Oh! Robot vacuum cleaners! — Greg cheered.
— No. Those are web crawlers. They visit pages, discover links, retrieve information and pass it on for processing.
— Every time I ask something, they race around the whole planet?
— No. A search engine normally answers from an existing index, a massive catalogue of discovered resources. Crawlers keep updating it.
— The librarian doesn't read millions of books from scratch for every question?
— Exactly. There are records and a search system.
— What if a page appeared a second ago?
— It might not be discovered or indexed yet.
— And if somebody deleted a page?
— An old listing may remain for a while.
— So the librarian can lag behind?
— Yes. Please don't complain to the Clock Department.
A robot at the door and robots.txt
One crawler stopped outside a door marked “Do not enter”.
— What's that? — asked Greg.
— Site owners can publish instructions for crawlers, including a robots.txt file. Other mechanisms can also limit indexing.
— A sign on the door locks it completely?
— No. robots.txt is not a security barrier for confidential data. It gives rules to cooperative crawlers, not access control against every visitor.
— Where should secret documents go?
— Behind real authentication and authorization, not a polite note to a robot.
— Does every web page appear in search?
— No. Some are undiscovered, blocked, behind logins or simply excluded.
— So no result doesn't mean something doesn't exist?
— Right. Not finding your socks in the drawer doesn't prove you never bought them.
— Please don't start with the socks again.
Ranking: who gets the first shelf?
Greg asked for “the best pizza in town”. A thousand cards fell onto the desk.
— WHICH ONE SHOULD I READ?!
— A search engine tries to order results by predicted usefulness. Different systems consider many signals, such as content, relevance, quality and other factors.
— The first result must be the absolute truth?
— Definitely not. A top position doesn't guarantee truth or neutrality.
— Why does my neighbour get different results?
— Language, region, settings, history and other context can matter. Different engines may also have different indexes and ranking systems.
— There isn't one completely objective order for the whole Internet?
— No.
— What if I shout my query louder?
— You'll annoy everyone else in the library.
Advertising in a library?
Greg saw entries marked Sponsored at the top of the page.
— The librarian recommends those?
— Some entries are advertisements, placed under the search provider's advertising rules. They should be distinguished from regular search results.
— Someone paid to appear in the advertising area?
— Yes. That's not the same as organic ranking.
— And SEO?
— SEO, search engine optimization, includes creating useful, technically accessible content that crawlers can understand. It doesn't mean automatically buying the number-one position.
— If I repeat PIZZA a thousand times, will I become the pizza king?
— You'll become the king of irritating text.
— If an ad promotes a miracle cure, is that proof it works?
— No. Evaluate search results and ads critically, especially for health, money and safety.
— Search finds information, but it doesn't think for me?
— Finally, we're making progress.
Google, Bing, Yahoo and the other libraries
Several signs hung above the entrance.
— Google Search, Microsoft Bing, Yahoo Search, DuckDuckGo, Brave Search, Ecosia… — Greg read aloud.
— That many libraries?
— Different search services. They may present results differently, have different privacy practices, and use their own indexes or results from partners.
— Yahoo is still around?
— Yes, as a search service. Not everything you remember from the early Internet has disappeared.
— Is DuckDuckGo a browser or a search engine?
— The company offers a search engine and also a browser. A company name doesn't always describe just one type of product.
— Brave?
— Same idea: Brave Browser is a browser, Brave Search is a search engine.
— Ecosia?
— A search service that can use results from various providers. Not everyone has to index the whole Internet independently.
— So I need the PRODUCT name, not just the company?
— Exactly. Google isn't synonymous with Chrome, and Bing isn't Edge.
— Shame. I liked keeping everything in one drawer.
Privacy: who sees my questions?
Greg leaned towards the librarian and whispered, “Why does my cat look at me like my manager?”
— Remember that search queries you submit reach the search provider. What gets stored and personalized depends on the service and your settings.
— What if I turn on incognito mode?
— Private browsing isn't the same as being anonymous online. It generally limits local history saved for the session, but it doesn't make your searches invisible to the search engine, the sites you visit or your network.
— A tiny hat icon won't make me disappear?
— Not like that.
— Can I change the default search engine?
— In most mainstream browsers, yes. Check the settings and your preferred provider's privacy policy.
— Does the cat really run my life?
— The search engine can't settle that. Ask the cat.
AI and answers that aren't always right
The librarian opened a new counter labeled “Instant Answers”.
— Now I don't have to open websites at all! — Greg cheered.
— Some search providers show short answers, excerpts or AI-generated summaries — explained Agnieszka.
— So I don't have to check sources?
— Quite the opposite. A summary may omit context or contain mistakes. Verify important claims against trustworthy sources.
— Are a search engine and an AI assistant the same thing?
— No. Their capabilities can overlap, but finding documents and generating answers are different tasks. A service may combine them.
— The librarian sometimes tells a story about the books?
— Yes, but make sure it's about the correct books.
— I'm starting to think reading is an important skill in a library.
— Beautiful conclusion.
Greg's final exam: Opera versus Google
Agnieszka closed the catalogue and handed Greg a quiz sheet.
— What's the difference between a browser and a search engine?
— A browser opens web pages. A search engine helps me find them.
— Examples?
— Browsers: Opera, Firefox, Chrome, Edge, Safari. Search engines: Google Search, Bing, Yahoo Search, DuckDuckGo.
— Can Firefox use Google Search?
— Yes!
— Can Chrome use Bing?
— Yes!
— And if I know the address?
— I can enter it directly without asking the search engine for directions.
— Very good.
— So Opera is the car, Google Search the signpost, and the Internet the roads?
— In our simplified model, exactly.
— I'll tell my friend he mustn't search with Opera anymore.
— He can use a search engine inside Opera. Please don't start another argument about words.
— Too late. I sent him a forty-slide presentation.
Management of the Entire Internet Library reports: the crawlers have returned, the index is still incomplete, and the Advertising Department is not the Department of Absolute Truth. Greg passed the browser-versus-search-engine test. Unfortunately, five minutes later he asked Agnieszka which Internet she uses: “The Chrome one or the Google one?” The librarian closed the building for emergency maintenance. 🔎📚🤣❤️