We love open-source software, and use the following in New Relic Synthetics. Thank you, open-source community, for making these fine tools! Some of these are listed under multiple software licenses, and in that case we have listed the license we've chosen to use.
Library  | Version  | License  | Copyright  | 
|---|---|---|---|
1.4.7  | Copyright © 2010-2015 Google, Inc.  | ||
1.4.7  | Copyright © 2010-2015 Google, Inc.  | ||
1.4.7  | Copyright © 2010-2015 Google, Inc.  | ||
1.10.1  | Copyright © 1999-2020 The Apache Software Foundation  | ||
2.0.3  | Copyright © 2012-2018 AJ ONeal  | ||
1.11.849  | Copyright © 2016-2021, Amazon Web Services, Inc.  | ||
1.11.849  | Copyright © 2014-2021, Amazon Web Services, Inc.  | ||
1.11.849  | Copyright © 2010-2021, Amazon Web Services, Inc.  | ||
1.11.849  | Copyright © 2010-2021, Amazon Web Services, Inc.  | ||
1.11.849  | Copyright © 2016-2021, Amazon Web Services, Inc.  | ||
1.11.849  | Copyright © 2016-2021, Amazon Web Services, Inc.  | ||
1.11.849  | Copyright © 2010-2021, Amazon Web Services, Inc.  | ||
1.11.849  | Copyright © 2011-2021, Amazon Web Services, Inc.  | ||
1.11.849  | Copyright © 2016-2021, Amazon Web Services, Inc.  | ||
2.465.0  | Copyright © 2012-2017 Amazon.com, Inc. or its affiliates.  | ||
0.0.20  | Copyright © 2015 inreachventures  | ||
4.6.2  | Copyright © 2019 Patrick Juchli  | ||
1.55  | Copyright © 2000 - 2021 The Legion of the Bouncy Castle Inc.  | ||
1.60  | Copyright © 2000 - 2020 The Legion of the Bouncy Castle Inc.  | ||
4.2.7  | Copyright © 2011-2020 thoughtbot, inc.  | ||
1.8.0  | Copyright © 2012 thoughtbot, inc.  | ||
1.1.2  | Copyright © 2012-2018 AJ ONeal  | ||
1.4  | Copyright © 2007–2015 MojoHaus. All rights reserved.  | ||
2.3.0  | Copyright © 2017 Chai.js Assertion Library  | ||
0.9.3  | Copyright © 2014 Good Eggs  | ||
0.1.13  | Copyright © 2015 John Agan  | ||
--  | Copyright © 2008 Tom Preston-Werner, © 2014 Yurk Shapkin.  | ||
1.1.2  | Original Library - Copyright © Marak Squires. Additional Functionality - Copyright © Sindre Sorhus. (sindresorhus.com)  | ||
3.2.2  | Copyright © 2001-2019 The Apache Software Foundation. All Rights Reserved.  | ||
1.19  | Copyright © 2020 The Apache Software Foundation. All Rights Reserved.  | ||
1.5  | Copyright © 2001-2018 The Apache Software Foundation. All Rights Reserved.  | ||
1.3  | Copyright © 2014 The Apache Software Foundation. All Rights Reserved.  | ||
2.6  | Copyright © 2002-2020 The Apache Software Foundation. All Rights Reserved.  | ||
3.7  | Copyright © 2001-2021 The Apache Software Foundation. All Rights Reserved.  | ||
3.6.1  | Copyright © 2003-2016 The Apache Software Foundation. All Rights Reserved.  | ||
3.6  | Copyright © 2001-2021 The Apache Software Foundation. All Rights Reserved.  | ||
2.4.1  | Copyright © 2001-2020 The Apache Software Foundation. All Rights Reserved.  | ||
1.2  | Copyright © 2014-2020 The Apache Software Foundation. All Rights Reserved.  | ||
1.6  | Copyright © 2002-2020 The Apache Software Foundation. All Rights Reserved.  | ||
1.0.3  | Copyright © 2009-2010 Ning, Inc.  | ||
1.4.1  | Copyright © 2021, Ivan De Marino. All rights reserved.  | ||
4.0.1  | Copyright © JS Foundation and other contributors  | ||
3.1.5  | Copyright © 2009-2013 Jeff Mott. Copyright © 2013-2016 Evan Vosberg  | ||
0.25.0  | Copyright © JS Foundation and other contributors  | ||
4.2.0  | Copyright © 2019 The Apache Software Foundation  | ||
2.1.8  | Copyright © 1998-2011, Brian Wellington.  | ||
8.15.3  | Copyright © 2016 Spotify AB  | ||
1.3.23  | Copyright © 2010-2013 Coda Hale and Yammer, Inc., © 2014-2020 Dropwizard Team  | ||
1.3.23  | Copyright © 2010-2013 Coda Hale and Yammer, Inc., © 2014-2020 Dropwizard Team  | ||
1.3.23  | Copyright © 2010-2013 Coda Hale and Yammer, Inc., © 2014-2020 Dropwizard Team  | ||
1.3.23  | Copyright © 2010-2013 Coda Hale and Yammer, Inc., © 2014-2020 Dropwizard Team  | ||
1.3.23  | Copyright © 2010-2013 Coda Hale and Yammer, Inc., © 2014-2020 Dropwizard Team  | ||
1.3.23  | Copyright © 2010-2013 Coda Hale and Yammer, Inc., © 2014-2020 Dropwizard Team  | ||
6.8.4  | Copyright © Elasticsearch B.V.  | ||
1.0.1  | Copyright © JS Foundation and other contributors  | ||
3.0.1  | Copyright © 2020 Marak Squires  | ||
0.9.0  | Copyright © JS Foundation and other contributors  | ||
3.0.3  | Copyright © 2005–2018 MojoHaus. All rights reserved.  | ||
0.2.1  | Copyright © 2013-2014 Santiago M. Mola  | ||
5.0.15  | Copyright © Isaac Z. Schlueter and Contributors  | ||
11.8.3  | Copyright © Sindre Sorhus  | ||
2.4.3  | Copyright © 2003-2020 the Apache Groovy project.  | ||
21.0  | Copyright © 2010 The Guava Authors  | ||
2.0.0  | Copyright © 2012-2015 Ray Holder  | ||
4.2.2  | Copyright © 2006 Google Inc.  | ||
4.2.2  | Copyright © 2006 Google Inc.  | ||
4.2.2  | Copyright © 2006 Google Inc.  | ||
1.4.193  | |||
5.4.9.Final  | Copyright © 1991, 1999 Free Software Foundation, Inc.  | ||
2.6.1  | Copyright © 2013 Brett Wooldridge  | ||
6.0  | Copyright © 2014 Kevin Sawicki.  | ||
4.1.3  | Copyright © 2005–2021 The Apache Software Foundation  | ||
${httpcomponents.httpclient.version}  | Copyright © 2005–2021 The Apache Software Foundation  | ||
4.4.4  | Copyright © 2005–2021 The Apache Software Foundation  | ||
4.4.12  | Copyright © 2019 The Apache Software Foundation  | ||
4.5.5  | Copyright © 2019 The Apache Software Foundation  | ||
2.10.1  | Copyright © 2019 The Apache Software Foundation  | ||
2.10.1  | |||
1.11.0  | |||
0.0.3  | Copyright © 2013 Scott Beck  | ||
0.8.0  | Copyright © 2012-2015 Tobias Koppers @sokra. Copyright © 2016 Tiancheng "Timothy" Gu.  | ||
1.14.5  | Copyright © 2018-present Christopher J. Brody and other contributors. Copyright © 2010 Adam Abrons and Misko Hevery.  | ||
6.6.1  | Copyright © 2012-2020, Sideway Inc, and project contributors. Copyright © 2012-2014, Walmart. All rights reserved.  | ||
2.1.3  | Copyright © JS Foundation and other contributors  | ||
1.1.1  | Copyright © 2019 The Apache Software Foundation  | ||
3.0.1  | |||
4.12  | Copyright © 2002-2020 JUnit. All Rights Reserved.  | ||
5.6.2  | Copyright © 2020 The JUnit Team  | ||
5.6.2  | Copyright © 2020 The JUnit Team  | ||
4.10.2  | Copyright © 2015 Red Hat, Inc.  | ||
4.10.2  | Copyright © 2015 Red Hat, Inc.  | ||
4.3.3  | Modified Work Copyright © 2013 Vesa Poikajärvi. Original Work Copyright © 2011 Trent Mick.  | ||
0.2.4  | Copyright © 2012 by Nick Ewing  | ||
3.1.1  | Copyright © 2019 The Apache Software Foundation  | ||
3.0  | Copyright © 2019 The Apache Software Foundation  | ||
1.2.1-NewRelic-20141105.092905-1  | Copyright © 2009 Last Bamboo LLC  | ||
2.4.2  | Copyright © JS Foundation and other contributors  | ||
2.12.1  | Copyright © 1999-2021 The Apache Software Foundation. All Rights Reserved.  | ||
1.2.3  | Copyright © 2019 QOS.ch. All rights reserved.  | ||
1.2.3  | Copyright © 2019 QOS.ch. All rights reserved.  | ||
3.1.0  | Copyright © 2001–2018 The Apache Software Foundation. All rights reserved.  | ||
3.6.1  | Copyright © 2001–2019 The Apache Software Foundation. All rights reserved.  | ||
2.10  | Copyright © 2002–2020 The Apache Software Foundation. All rights reserved.  | ||
1.4.1  | Copyright © 2007–2019 The Apache Software Foundation. All rights reserved.  | ||
2.20  | Copyright © 2019 The Apache Software Foundation  | ||
2.6  | Copyright ©2002–2019 The Apache Software Foundation. All rights reserved.  | ||
3.0.2  | Copyright ©2001–2020 The Apache Software Foundation. All rights reserved.  | ||
3.1.1  | Copyright ©2002–2020 The Apache Software Foundation. All rights reserved.  | ||
2.20  | Copyright © 2019 The Apache Software Foundation  | ||
2.20  | Copyright © 2019 The Apache Software Foundation  | ||
1.1.3  | |||
3.1.0  | Copyright © 2007 Mockito contributors  | ||
0.1.8  | Copyright © 2015 Red Hat, Inc.  | ||
2.15.1  | Copyright © JS Foundation and other contributors  | ||
--  | Copyright © 2013 MultiBit  | ||
1.0.2  | Copyright © 2016 Sleepless Software Inc. All rights reserved.  | ||
1.1.12  | Copyright © 2018 NoSpaceships Ltd. Copyright © 2013 Stephen Vickers.  | ||
1.1.14  | Copyright © 2020 Mark Abrahams. Copyright © 2018 NoSpaceships Ltd. Copyright © 2013 Stephen Vickers.  | ||
3.8.0  | Copyright © 2013-2016 Andrew Nesbitt  | ||
1.4.3  | Copyright © 2010-2016 Robert Kieffer and other contributors  | ||
1.1.1  | Copyright © 2016 Zulhilmi Mohamed Zainuddin  | ||
6.4.13  | Copyright © 2011-2019 Andris Reinman  | ||
3.14.4  | Copyright © 2019 Square, Inc.  | ||
3.4.3  | Copyright © 2010–2021 oshi. All rights reserved.  | ||
20160413.1  | Copyright © 2015, Mike Samuel  | ||
42.2.5  | Copyright © 1997, PostgreSQL Global Development Group. All rights reserved.  | ||
3.1.6  | Copyright © 2008 Google Inc. All rights reserved.  | ||
1.4.1  | Copyright © 2009–2017 Kristopher Michael Kowal. All rights reserved.  | ||
1.6.4  | Copyright © 2018 NoSpaceships Ltd. Copyright © 2013 Stephen Vickers.  | ||
3.11.6  | COPYRIGHT © 2021 Nikita Koksharov  | ||
2.60.0  | Copyright © OpenJS Foundation and other contributors  | ||
1.6.0  | |||
2.6.3  | Copyright © Isaac Z. Schlueter and Contributors  | ||
4.0.2  | Copyright © JS Foundation and other contributors  | ||
4.1.0  | Copyright © 2019 Software Freedom Conservancy (SFC)  | ||
7.0.3  | Copyright © 2010-2013 TJ Holowaychuk. Copyright © 2013-2017 Denis Bardadym.  | ||
5.3.1  | Copyright © 2020 Tim Cross  | ||
2.0.5  | Copyright © 8008 Dyaa Eldin Moustafa  | ||
0.6.4  | Copyright © 2019 The Apache Software Foundation  | ||
0.9.2  | Copyright © 2007 Thomas Porschberg  | ||
2.0.0  | Copyright © 2015, Salesforce.com, Inc.  | ||
1.8.3  | Copyright © 2009-2018 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors  | ||
0.5.7  | Copyright © JS Foundation and other contributors  | ||
1.1.9  | Copyright © 2015 Unshift.io, Arnout Kazemier, the Contributors.  | ||
2.3.11  | Copyright © 2011 - 2014 fengmk2 and other contributors. Copyright © 2015 - present node-modules and other contributors.  | ||
1.1.4  | Copyright © 2014 dead_horse  | ||
1.20  | Copyright © 2013, Harald Walker  | ||
3.1.0  | Copyright © 2010-2020 Robert Kieffer and other contributors  | ||
3.18.1  | Copyright © 2018 Chris O'Hara  | ||
0.2.2  | Copyright © 2014 Good Eggs Inc  | ||
1.14.0  | Copyright © JS Foundation and other contributors  | ||
2.19.0  | Copyright © 2011 Thomas Akehurst  | ||
1.1.4  | Copyright © 2011 Einar Otto Stangvik  | ||
0.5.4  | |||
1.4.01  | Copyright © 2001-2009 The Apache Software Foundation.  | ||
0.4.17  | Copyright © 2010, 2011, 2012, 2013. All rights reserved.  | ||
1.6  | |||
3.5.6  | Copyright © 2010-2020 The Apache Software Foundation  | 
The remainder of the code is covered by the New Relic License agreement.