Genealogy Giants: Which Genealogy Website Should I Use?

Genealogy Giants quick reference guide cheat sheet Big 4

“Which genealogy records membership website should I use?” Gems editor Sunny Morton took on that ambitious family history question in her RootsTech 2017 live-streamed lecture, “The Big 4: Comparing Ancestry, FamilySearch, Findmypast and MyHeritage.” Watch it below, read reviews of the lecture, and learn about her BRAND NEW guide to understanding these four “Genealogy Giants.”

The big picture: Which Genealogy Giants website is best for me?

Each of the major genealogy records membership websites:


It has unique strengths. And it’s also true that each person’s family history research has unique and ever-changing needs. You may determine that one or two of these sites meets your needs now. But it’s critically important to learn all you can about each genealogy records website so you know your options when your needs or interests change.

For example, you may discover an Irish or Swedish ancestor whose records may be hosted on a different site than the one you’ve been using on a regular basis. Or, you may find that you need DNA connections to push further back in your family tree, but not all of the major websites have DNA tools.

All 4 Genealogy Giants websites offer:

  • Indexed and browse-only historical records
  • Powerful, flexible search interfaces
  • Automated record hinting (if you have a tree on the site)
  • Help/tutorials for site users
  • Free options for accessing core record content

But…it’s not easy to compare the Genealogy Giants

There are so many features on each site–and an apples-to-apples comparison isn’t easy.

Here’s one example: how many records are on each site? Some sites include DNA results and user-submitted family tree profiles in their total record count. Others don’t. One site has a universal family tree–ideally with one record per person who has ever lived–and the others host individual trees for each user, leading to lots of duplication. Does a birth record count as one record on all 4 of the Genealogy Giants? FamilySearch thinks so. But other sites may count a birth record as three records, because a baby, mom and dad are all named. So it’s not easy to compare historical record content across all the sites.

genealogy giants quick reference guide cheat sheet

Genealogy Giants: Comparing the 4 Major Genealogy Records Websites
Quick Reference Guide

That’s why we created this new guide. It helps you answer one of the most-asked questions in genealogy: “Which genealogy website should I use?”

Use this jammed-packed cheat sheet to quickly and easily compare all of the most important features of the four biggest international genealogy websites:,, and Then consult it every time your research budget, needs or goals change. Tables, bulleted lists and graphics make this guide as easy to use as it is informative.

This comprehensive quick reference guide explains:

  • How knowing about all four websites can improve your family history research
  • How the sites stack up when it comes to the numbers of historical records, names in trees, DNA profiles, site users, site languages and subscription costs
  • Unique strengths of each website and cautions for using each
  • What to keep in mind as you evaluate record content between sites
  • Geographic record strengths: A unique table has an at-a-glance comparison for 30+ countries
  • How to see what kinds of records are on each site without subscribing
  • How family trees are structured differently at these websites—and why it matters
  • Privacy, collaboration and security options at each site
  • How DNA testing features differ at the two websites that offer it
  • What you can do with free guest accounts at each website
  • Subscription and free access options

Get the print guide here, and the digital download guide here at our store.

Watch the “Big 4” lecture

Additional Genealogy Giants Website Resources

AncestryDNA quick reference


Reviews of “The Big 4” Lecture

“You may have asked, ‘Which is the best online genealogy service for me to use?’….I suspect this video [presentation by Sunny Morton at RootsTech 2017] will answer most of your questions. Topics covered include cost, record types, geographic coverage, genetic testing, DNA matching, search flexibility, languages supported, mobile-friendly, automated matching, and a lot more.

Sunny provides the most information about these four sites that I have ever seen in any other one document or video. This is a keeper! I have been using all four of these web sites for years and yet I learned several new facts about them, thanks to Sunny’s online video presentation. I suspect you will learn some things as well.”

Dick Eastman, Eastman’s Online Genealogy Newsletter

“We want to tell you how much we enjoyed the presentation about the comparison of the four major websites. [Sunny] did an excellent job and we were so thrilled with her presentation. She was so prepared and presented it in such a manner as to be understood. Give her our best.”

–Eldon and Dorothy Walker

“I am incredibly thankful for your Big 4 session. I’ve never had interest in Findmypast or MyHeritage as I felt FamilySearch and Ancestry had it all…and hadn’t heard of PERSI either. With newly found Irish roots (via DNA), I’m excited to extend some lines that have gone cold.”

–a FamilySearch employee

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