Instrumentation & Measurement Magazine 23-9 - 56

[5]	 H. Metwalley, S. Traverso, and M. Mellia, " Using passive
measurements to demystify online trackers, " Computer, vol. 49,
no. 3, pp. 50-55, Mar. 2016.
[6]	 F. Roesner, T. Kohno, and D. Wetherall, " Detecting and defending
against third-party tracking on the web, " presented at the 9th
USENIX Symp. Networked Systems Design and Implementation
(NSDI 12), pp. 155-168, 2012.
[7]	 Z. Yu, S. Macbeth, K. Modi, and J. M. Pujol, " Tracking the
trackers, " in Proc. 25th Int. Conf. World Wide Web, pp. 121-132,
2016.
[8]	 S. Englehardt and A. Narayanan, " Online tracking: a 1-millionsite measurement and analysis, " in Proc. 2016 ACM SIGSAC Conf.
Computer and Commun. Security, pp. 1388-1401, 2016.
[9]	 H. Le, F. Fallace, and P. Barlet-Ros, " Towards accurate detection

Fig. 4. Tracking percentage.

of obfuscated web tracking, " in Proc. 2017 IEEE Int. Workshop on
Meas. Networking (M&N), pp. 1-6, 2017.

as they introduce by themselves the search terms in Google
websites, reaching their servers directly. Thus, the percentage
of websites that lack tracking methods should be understood
as an upper bound, depending on whether the included websites act also as a first party trackers or not, a fact that would
make them remain undiscovered.

Conclusions and Future Work
In this article, we presented a tutorial on web tracking, its
privacy and security implications and how network measurements can be used to detect and analyze it. It also includes a
taxonomy of the most relevant publications on the topic categorized by type of measurement. We also present the three
challenges we have to face to improve web tracking detection
and analysis: the constantly evolving ecosystem, the obfuscation and dynamicity of the environment and the lack of public
datasets. We introduced ORM, an open-source measurement
framework specifically designed to address those challenges,
and a first public dataset with information of 100,000 websites
and about 20 million resources.
As a future work, we plan to develop an application programming interface to allow automated access to the dataset
information to other research groups that may have interest
in the included data. Moreover, we are currently exploring the
data by means of data-mining algorithms to find characteristics that permit us to detect new web tracking methods in an
automated and unsupervised way.

References
[1]	 T. Bujlow, V. Carela-Español, J. Solé-Pareta, and P. Barlet-Ros,
" A survey on web tracking: mechanisms, implications, and
defenses, " Proc. IEEE, vol. 105, no. 8, pp. 1476-1510, Aug. 2017.
[2]	 I. Castell-Uroz, " Online Resource Mapper (ORM), " GitHub,
accessed Feb. 2020. [Online]. Available: https://github.com/
CBA-UPC/ORM.

[10]	C. Iordanou, G. Smaragdakis, I. Poese, and N. Laoutaris, " Tracing
cross border web tracking, " in Proc. 2018 Internet Meas. Conf., pp.
329-342, 2018.
[11]	E. Pujol, O. Hohlfeld, and A. Feldmann, " Annoyed users: ads and
ad-block usage in the wild, " in Proc. 2015 Internet Meas. Conf., pp.
93-106, 2015.
[12]	U. Iqbal, Z. Shafiq, and Z. Qian, " The ad wars: retrospective
measurement and analysis of anti-adblock filter lists, " in Proc.
2017 Internet Meas. Conf., pp. 171-183, 2017.
[13]	J. Mikians, L. Gyarmati, V. Erramilli, and N. Laoutaris, " Crowdassisted search for price discrimination in e-commerce: first
results, " in Proc. 9th ACM Conf. Emerging Networking Experiments
and Technol., pp. 1-6, 2013.
[14]	B. Krishnamurthy, D. Malandrino, and C. E. Wills, " Measuring
privacy loss and the impact of privacy protection in web
browsing, " in Proc. 3rd Symp. Usable Privacy and Security, pp.
52-63, 2007.
[15]	M. Ikram, R. Masood, G. Tyson, M. A. Kaafar, N. Loizon, and
R. Ensafi, " The chain of implicit trust: an analysis of the web
third-party resources loading, " in Proc. World Wide Web Conf., pp,
2861-2857, 2019.
[16]	K. Cooper, " Alexa: most popular website list, " Alexa.com,
accessed Feb. 2010. [Online]. Available: https://www.alexa.
com/.

Ismael Castell-Uroz (icastell@ac.upc.edu) is a Ph.D. student
at the Computer Architecture Department of the Universitat
Politècnica de Catalunya (UPC), Barcelona, Spain, where he
received the B.Sc. degree in Computer Science in 2008 and the
M.Sc. degree in Computer Architecture, Networks and Systems in 2010. He has several years of experience in network
and system administration and currently holds a Projects
Scholarship at UPC. His expertise and research interest are in
computer networks, especially in the field of network monitoring, web tracking and anomaly detection.

[3]	 " The Cambridge Analytica Files, " The Guardian, 2015.
[4]	 T.-C. Li, H. Hang, M. Faloutsos, and P. Efstathopoulos,
" TrackAdvisor: taking back browsing privacy from third-party
trackers, " in Proc. Int. Conf. Passive and Active Network Meas., pp.
277-289, 2015.
56	

Josep Solé-Pareta (pareta@ac.upc.edu) joined the Computer
Architecture Department of Universitat Politècnica de Catalunya (UPC), Barcelona, Spain, where he is currently Full
Professor. He received the M.Sc. degree in telecom engineering

IEEE Instrumentation & Measurement Magazine	

December 2020


http://Alexa.com https://www.alexa.com/ https://www.alexa.com/ https://www.github.com/CBA-UPC/ORM https://www.github.com/CBA-UPC/ORM

Instrumentation & Measurement Magazine 23-9

Table of Contents for the Digital Edition of Instrumentation & Measurement Magazine 23-9

No label
Instrumentation & Measurement Magazine 23-9 - No label
Instrumentation & Measurement Magazine 23-9 - Cover2
Instrumentation & Measurement Magazine 23-9 - 1
Instrumentation & Measurement Magazine 23-9 - 2
Instrumentation & Measurement Magazine 23-9 - 3
Instrumentation & Measurement Magazine 23-9 - 4
Instrumentation & Measurement Magazine 23-9 - 5
Instrumentation & Measurement Magazine 23-9 - 6
Instrumentation & Measurement Magazine 23-9 - 7
Instrumentation & Measurement Magazine 23-9 - 8
Instrumentation & Measurement Magazine 23-9 - 9
Instrumentation & Measurement Magazine 23-9 - 10
Instrumentation & Measurement Magazine 23-9 - 11
Instrumentation & Measurement Magazine 23-9 - 12
Instrumentation & Measurement Magazine 23-9 - 13
Instrumentation & Measurement Magazine 23-9 - 14
Instrumentation & Measurement Magazine 23-9 - 15
Instrumentation & Measurement Magazine 23-9 - 16
Instrumentation & Measurement Magazine 23-9 - 17
Instrumentation & Measurement Magazine 23-9 - 18
Instrumentation & Measurement Magazine 23-9 - 19
Instrumentation & Measurement Magazine 23-9 - 20
Instrumentation & Measurement Magazine 23-9 - 21
Instrumentation & Measurement Magazine 23-9 - 22
Instrumentation & Measurement Magazine 23-9 - 23
Instrumentation & Measurement Magazine 23-9 - 24
Instrumentation & Measurement Magazine 23-9 - 25
Instrumentation & Measurement Magazine 23-9 - 26
Instrumentation & Measurement Magazine 23-9 - 27
Instrumentation & Measurement Magazine 23-9 - 28
Instrumentation & Measurement Magazine 23-9 - 29
Instrumentation & Measurement Magazine 23-9 - 30
Instrumentation & Measurement Magazine 23-9 - 31
Instrumentation & Measurement Magazine 23-9 - 32
Instrumentation & Measurement Magazine 23-9 - 33
Instrumentation & Measurement Magazine 23-9 - 34
Instrumentation & Measurement Magazine 23-9 - 35
Instrumentation & Measurement Magazine 23-9 - 36
Instrumentation & Measurement Magazine 23-9 - 37
Instrumentation & Measurement Magazine 23-9 - 38
Instrumentation & Measurement Magazine 23-9 - 39
Instrumentation & Measurement Magazine 23-9 - 40
Instrumentation & Measurement Magazine 23-9 - 41
Instrumentation & Measurement Magazine 23-9 - 42
Instrumentation & Measurement Magazine 23-9 - 43
Instrumentation & Measurement Magazine 23-9 - 44
Instrumentation & Measurement Magazine 23-9 - 45
Instrumentation & Measurement Magazine 23-9 - 46
Instrumentation & Measurement Magazine 23-9 - 47
Instrumentation & Measurement Magazine 23-9 - 48
Instrumentation & Measurement Magazine 23-9 - 49
Instrumentation & Measurement Magazine 23-9 - 50
Instrumentation & Measurement Magazine 23-9 - 51
Instrumentation & Measurement Magazine 23-9 - 52
Instrumentation & Measurement Magazine 23-9 - 53
Instrumentation & Measurement Magazine 23-9 - 54
Instrumentation & Measurement Magazine 23-9 - 55
Instrumentation & Measurement Magazine 23-9 - 56
Instrumentation & Measurement Magazine 23-9 - 57
Instrumentation & Measurement Magazine 23-9 - 58
Instrumentation & Measurement Magazine 23-9 - 59
Instrumentation & Measurement Magazine 23-9 - 60
Instrumentation & Measurement Magazine 23-9 - 61
Instrumentation & Measurement Magazine 23-9 - 62
Instrumentation & Measurement Magazine 23-9 - 63
Instrumentation & Measurement Magazine 23-9 - 64
Instrumentation & Measurement Magazine 23-9 - 65
Instrumentation & Measurement Magazine 23-9 - 66
Instrumentation & Measurement Magazine 23-9 - 67
Instrumentation & Measurement Magazine 23-9 - 68
Instrumentation & Measurement Magazine 23-9 - 69
Instrumentation & Measurement Magazine 23-9 - 70
Instrumentation & Measurement Magazine 23-9 - 71
Instrumentation & Measurement Magazine 23-9 - 72
Instrumentation & Measurement Magazine 23-9 - Cover3
Instrumentation & Measurement Magazine 23-9 - Cover4
https://www.nxtbook.com/allen/iamm/25-9
https://www.nxtbook.com/allen/iamm/25-8
https://www.nxtbook.com/allen/iamm/25-7
https://www.nxtbook.com/allen/iamm/25-6
https://www.nxtbook.com/allen/iamm/25-5
https://www.nxtbook.com/allen/iamm/25-4
https://www.nxtbook.com/allen/iamm/25-3
https://www.nxtbook.com/allen/iamm/instrumentation-measurement-magazine-25-2
https://www.nxtbook.com/allen/iamm/25-1
https://www.nxtbook.com/allen/iamm/24-9
https://www.nxtbook.com/allen/iamm/24-7
https://www.nxtbook.com/allen/iamm/24-8
https://www.nxtbook.com/allen/iamm/24-6
https://www.nxtbook.com/allen/iamm/24-5
https://www.nxtbook.com/allen/iamm/24-4
https://www.nxtbook.com/allen/iamm/24-3
https://www.nxtbook.com/allen/iamm/24-2
https://www.nxtbook.com/allen/iamm/24-1
https://www.nxtbook.com/allen/iamm/23-9
https://www.nxtbook.com/allen/iamm/23-8
https://www.nxtbook.com/allen/iamm/23-6
https://www.nxtbook.com/allen/iamm/23-5
https://www.nxtbook.com/allen/iamm/23-2
https://www.nxtbook.com/allen/iamm/23-3
https://www.nxtbook.com/allen/iamm/23-4
https://www.nxtbookmedia.com