The Woman Who Named the Internet

Key Takeaways

• •Elizabeth 'Jake' Feinler ran the ARPANET's Network Information Center from 1972 to 1989, serving as the internet's directory, help desk, and address registry
• •She created the domain naming scheme (.com, .edu, .gov, .mil, .org, .net) that every website on earth still uses
• •Her team invented WHOIS in 1982, the protocol for looking up domain ownership, still in use over 40 years later
• •The ARPANET's 'phone book' literally shut down at 5 PM Pacific. If you needed a network address after hours, you waited until morning
• •She was inducted into the Internet Hall of Fame in 2012 at age 81. Most people have never heard her name

Timeline

Every website you have ever visited ends in .com, .org, .edu, or .net.

The person who created that system is named Elizabeth Feinler. Almost nobody knows who she is.

This is the story of how one woman, working from a small office at the Stanford Research Institute, became the person the entire early internet depended on. She didn't write code. She didn't build hardware. She organized information. And in doing so, she gave the internet the naming system it still uses today, four decades later.

Her friends called her Jake.

Elizabeth Jocelyn Feinler was born in 1931 in Wheeling, West Virginia. She studied chemistry at West Liberty State College, then earned a master's in biochemistry from Purdue University. In 1960, she joined the Stanford Research Institute (SRI) in Menlo Park, California, as an information scientist. Her job: organizing large databases of chemical and biological information.

It was not glamorous work. But it turned out to be the perfect training for what came next.

Before the internet had search engines, it had Jake Feinler. Her team at Stanford answered every question about the network by phone, and if you called after 5 PM Pacific time, you were out of luck. The entire internet's directory service shut down for the evening.

— Bryte, Behind the Byte

In 1969, the Advanced Research Projects Agency (ARPA) launched a computer network connecting four universities: UCLA, SRI, UC Santa Barbara, and the University of Utah. They called it the ARPANET. The entire network could be drawn on a napkin. Four nodes. A handful of researchers. A government experiment in connecting computers so they could share resources.

SRI was one of those four original nodes. And someone needed to keep track of who was on the network, what each computer was called, and how to reach it.

That job went to Jake Feinler.

In 1972, she was appointed principal investigator of the ARPANET Network Information Center, known simply as the NIC. If the ARPANET was the internet's ancestor, the NIC was its phone book, its help desk, and its post office. All in one. All run by Feinler's team.

Here is what the NIC actually did, day by day.

Researchers who wanted to connect to another computer on the ARPANET would call Feinler's office at SRI. Literally call, on the telephone. Her team would look up the host address in their records and read it back over the phone. They also maintained a printed directory, the ARPANET Directory, which listed every person and every computer on the network. They updated it by hand and mailed physical copies to every node.

If you called after 5:00 PM Pacific time, nobody answered. The internet's only directory service closed for the evening.

The fact that you type 'google.com' and not '142.250.80.46' is because a woman in a small office at the Stanford Research Institute decided in the 1980s that computers should have names people could remember. Every URL you have ever typed exists because of that decision.

— Bryte, Behind the Byte

This sounds absurd now. But in the early 1970s, the ARPANET had fewer than 100 hosts. A small team could manage it. The absurdity only becomes clear in hindsight, because we know what came next.

The network grew. By the late 1970s, the ARPANET had hundreds of hosts. By the early 1980s, it had thousands. The phone-call system was breaking down. The printed directory was out of date before it arrived in the mail.

Feinler's team needed a better way to organize the network.

The first major innovation was WHOIS. In 1982, Feinler's group developed a protocol that allowed anyone on the network to look up who was responsible for a particular host or domain. You typed a query, and the system returned contact information. Simple, practical, essential.

WHOIS is still in use today. If you have ever looked up who owns a website, you used a protocol that Jake Feinler's team created over forty years ago.

But the bigger contribution was the naming system.

In the early ARPANET, computers were identified by numeric addresses. Think of it like a phone system with only numbers and no names. If you wanted to reach a machine, you needed to know its number. Feinler's team maintained a single text file called HOSTS.TXT that mapped names to numbers. Every computer on the network would download this file to know how to find other computers.

As the network grew, maintaining one central text file became impossible. The file was getting bigger. Updates were constant. Conflicts in naming were increasing. Something had to change.

Feinler proposed a hierarchical naming scheme. Instead of every computer having a flat name (like "SRI-NIC" or "MIT-AI"), she suggested organizing them by type. Commercial entities would end in .com. Educational institutions would end in .edu. Government agencies would end in .gov. Military sites would end in .mil. Organizations would end in .org. Network infrastructure would end in .net.

This proposal, refined and implemented as the Domain Name System (DNS) by Paul Mockapetris in 1983, became the backbone of internet addressing. Every URL you have ever typed, every website you have ever visited, every email you have ever sent uses the naming structure that Feinler designed.

Google.com. Harvard.edu. Whitehouse.gov. Wikipedia.org.

All of them trace back to a classification scheme created by an information scientist in Menlo Park who started her career organizing chemical databases.

Feinler retired from SRI in 1989 after running the NIC for seventeen years. That same year, Tim Berners-Lee invented the World Wide Web at CERN. The internet that Feinler had spent nearly two decades organizing was about to become the defining technology of the modern world.

She watched it happen from the outside.

In 2012, at age 81, Elizabeth Feinler was inducted into the Internet Hall of Fame by the Internet Society. In 2013, she received the Jonathan B. Postel Service Award for her contributions to the early development and administration of the internet. In 2025, ICANN published a tribute calling her "The Woman Behind WHOIS."

These recognitions came late. Ask most people who invented the internet and they will name Vint Cerf, Bob Kahn, or Tim Berners-Lee. All of those answers are partially correct. But none of them explain why you type ".com" at the end of a web address.

That part is Jake's.

Feinler is not the only woman whose contributions to the internet have been overlooked. Radia Perlman invented the Spanning Tree Protocol in the 1980s, which made it possible for Ethernet networks to scale from hundreds of nodes to hundreds of thousands. Without her work, local area networks as we know them would not function. She has been called the "Mother of the Internet," a title she politely rejects, noting that no single person invented it.

Karen Sparck Jones, a British computer scientist, developed the concept of inverse document frequency (IDF) in 1972. Her work became the mathematical foundation for how search engines rank results. Every Google search you have ever run uses a descendant of her algorithm. She published her foundational paper in a journal so obscure that it took decades for the field to catch up.

And then there is Hedy Lamarr. Yes, the actress. In 1942, Lamarr and composer George Antheil patented a frequency-hopping communication system designed to prevent radio-controlled torpedoes from being jammed during World War II. The military ignored their patent. Decades later, their concept became the basis for spread-spectrum technology used in WiFi, Bluetooth, and GPS.

Lamarr received no recognition during her lifetime. Her patent expired before the technology became commercially valuable. She died in 2000.

These are not footnotes. These are foundations. The domain names, the network protocols, the search algorithms, the wireless communication standards that billions of people rely on every day trace back to women whose names most people have never heard.

Why?

The answer is not complicated. The history of technology has been told primarily by and about men. Not because women weren't there. They were there from the beginning. Ada Lovelace wrote the first computer program in the 1840s. Grace Hopper invented the first compiler and pioneered COBOL. The women of ENIAC programmed the first general-purpose electronic computer during World War II. At every stage of computing history, women did foundational work that was attributed to their male colleagues, their institutions, or simply forgotten.

Feinler's case is particularly striking because her contribution is visible every single day to every single internet user. The .com at the end of a URL is not hidden infrastructure. It is right there, in the address bar, every time you open a browser. And yet the woman who created that naming convention is not in any standard computer science textbook.

There is a lesson here, and it is not just about credit.

The work of organizing information, of creating systems that help people find things, of maintaining directories and answering questions, has historically been classified as "support work." It is not the flashy work of building processors or writing algorithms. It is the quiet, essential work of making a complex system usable by human beings.

Feinler did not invent the internet. She made it navigable. She took a network of numbered machines and gave it a structure that humans could understand and remember. She turned an engineering experiment into something ordinary people could use.

That is not a small thing. That is arguably the thing that mattered most.

The next time you type a web address, take one second to notice the .com at the end. Or the .org. Or the .edu.

That was Jake.

(Sources: Internet Hall of Fame, ICANN Tribute to Elizabeth Feinler, Computer History Museum, Internet Society, SRI International Archives, New York Historical Society, Invention and Technology Magazine)

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