Vaibhav Bajpai home . people . papers . teaching . code

Vaibhav Bajpai . Independent Research Group Leader

[email protected]

CISPA Helmholtz Center for Information Security
30159 Hannover, Germany

Google Scholar
Tools doe-hunter →
A tool to discover, query, and analyze DDR and encrypted DNS protocols.

aviator →
A drone traffic generator.

dtube-app →
An Android app to compare the video streaming performance of a decentralised video streaming service (DTube) and YouTube

wepr →
A tool designed for the SamKnows probes to measure web latency and web complexity metrics. It offloads Javascript execution to a parsing server to measure rendering performance.

weblar →
A tool designed for the MONROE probes to measure web latency, above the fold (ATF) and rendering performance.

youtube →
A tool to measure youtube performance on the command line.

simweb →
A tool to measure similarity of webpages delivered over IPv4 and IPv6

nfql →
An implementation of the network flow query language (NFQL)

happy →
A happy eyeballs [RFC 6555] probing tool

ncclient →
A Python library for NETCONF clients.
Datasets

data
code 		Path to Encrypted DNS with DDR: Adoption, Configuration Patterns, and Privacy Implications
V.Ververis, S.Sassalla, V.Bajpai
Privacy Enhancing Technologies Symposium, Washington DC, July 2025 		PETS '25

data 		Breaking Through the Clouds: Performance Insights into Starlink's Latency and Packet Loss
R.Richter, V.Ververis, V.Bajpai
IFIP Networking Conference, June 2025 		IFIP NETWORKING '25

data 		A First Look on Discovery of Designated Resolvers
S.Sassalla, V.Ververis, V.Bajpai
IFIP Networking Conference, June 2025 		IFIP NETWORKING '25

data
code 		Evaluating DNS Resiliency and Responsiveness With Truncation, Fragmentation and DoTCP Fallback
P.Dikshit, M.Kosek, N.Faulhaber, J.Sengupta, V.Bajpai
IEEE Transactions on Network and Service Management (TNSM)
2024 [Impact Factor: 5.3] 		TNSM '24

data
code 		Web Privacy by Design: Evaluating Cross-Layer Interactions
of QUIC, DNS and H/3
J.Sengupta, M.Kosek, J.Fries, P.Dikshit, V.Bajpai
IFIP Networking Conference
Barcelona, June 2023 [27.8%, 53/190] 		IFIP NETWORKING '23 Best Paper Award

data
scripts 		DNS Privacy with Speed? Evaluating DNS over QUIC and
its Impact on Web Performance
M. Kosek, L. Schumann, TV. Doan, R. Max, V.Bajpai
ACM Internet Measurement Conference (IMC)
October 2022 [26.4%, 56/212] 		IMC '22

data
scripts 		Analyzing Real-time Video Delivery over Cellular Networks
for Remote Piloting Aerial Vehicles
A. Baltaci, H. Cech, N. Mohan, F. Geyer, V. Bajpai, J. Ott, D. Schupke
ACM Internet Measurement Conference (IMC)
October 2022 [26.4%, 56/212] 		IMC '22

scripts 		An Empirical View on Consolidation of the Web
TV Doan, R. Rijswijk-Deij, O.Hohlfeld, V.Bajpai
ACM Transactions on Internet Technology (TOIT)
August 2022 [Impact Factor: 1.59]
 		TOIT '22

scripts 		An Eight Years Perspective on the Internet Broadband
Infrastructure in the USA
J.Fries, T.V.Doan, R.Gupta, V.Bajpai
IFIP Networking Conference
Catania, June 2022 [29.3%, 47/160] 		IFIP NETWORKING '22

data
scripts 		Exploring Proxying QUIC and HTTP/3 for Satellite Communication
M.Kosek, H.Cech, V.Bajpai, J.Ott
IFIP Networking Conference
Catania, June 2022 [29.3%, 47/160] 		IFIP NETWORKING '22

data
scripts 		Evaluating QUIC Performance over Web, Cloud Storage
and Video Workloads
T.Shreedhar, R.Panda, S.Podanev, V.Bajpai
IEEE Transactions on Network and Service Management (TNSM)
June 2022 [Impact Factor: 4.19]
 		TNSM '22

data
scripts 		Measuring DNS over TCP in the Era of Increasing DNS Response
Sizes: A View from the Edge
M. Kosek, TV. Doan, S. Huber, V.Bajpai
ACM SIGCOMM Computer Communication Review (CCR)
April 2022 [Impact Factor: 2.71]
 		SIGCOMM CCR '22

data
scripts 		One to Rule them All? A First Look at DNS over QUIC
M.Kosek, TV.Doan, M.Granderath, V.Bajpai
Passive and Active Measurement (PAM) Conference
Online, March 2022 [48.4%, 30/62] 		PAM '22
Understanding Data Usage Patterns of Geographically
Diverse Mobile Users
E.Walelgne, A.Asrese, J.Manner, V.Bajpai, J.Ott
IEEE Transactions on Network and Service Management (TNSM)
September 2021 [Impact Factor: 3.89]
 		TNSM '21

scripts 		Evaluating Public DNS Services in the Wake of Increasing Centralization of DNS
Trinh Viet Doan, Justus Fries, Vaibhav Bajpai
IFIP Networking Conference
Online, June 2020 [25.9%, 41/158] 		IFIP NETWORKING '21

scripts 		Measuring DNS over TLS from the Edge: Adoption,
Reliability, and Response Times
Trinh Viet Doan, Irina Tsareva, Vaibhav Bajpai
Passive and Active Measurement (PAM) Conference
Online, March 2021 [44%, 33/75] 		PAM '21

data 		Measuring Roaming in Europe:
Infrastructure and Implications on Users’ QoE.
A.Lutu, M.Trevisan, A.Khatouni, A.Mandalari, A.Custura, M.Mellia,
Ö.Alay, M.Bagnulo, A.Brunstrom, V.Bajpai, J.Ott, G.Fairhurst
IEEE Transactions on Mobile Computing (TMC)
February 2021 [Impact Factor: 5.11] 		TMC '21

data
scripts 		A Longitudinal View of Netflix: Content Delivery over IPv6
and Content Cache Deployments
Trinh Viet Doan, Vaibhav Bajpai, Sam Crawford
IEEE INFOCOM Conference
Online, July 2020 [19.8%, 268/1354] 		INFOCOM '20

data
scripts 		Measuring Decentralized Video Streaming:
A Case Study of DTube
T.V.Doan, T.D.Pham, M.Oberprieler, V.Bajpai
IFIP Networking Conference
Online, June 2020 [23.4%, 55/235] 		IFIP NETWORKING '20

data
scripts 		Measuring Web Latency and Rendering Performance:
Method, Tools & Longitudinal Dataset
A.Asrese, S.Eravuchira, V.Bajpai, P.Sarolahti, J.Ott
IEEE Transactions on Network and Service Management
June 2019 [Impact Factor: 3.28]
 		TNSM '19

data
scripts		 A Longitudinal View of Dual-stacked Website: Failures,
Latency and Happy Eyeballs
Vaibhav Bajpai, Jürgen Schönwälder
IEEE/ACM Transactions on Networking
April 2019 [Impact Factor: 3.11]
 		TON '19

data
scripts 		Measuring Web Quality of Experience in Cellular Networks
A. Asrese, E. Walelgne, V. Bajpai, A. Lutu, Ö. Alay, J. Ott
Passive and Active Measurement Conference
Puerto Varas, March 2019 [26.6%, 20/75 papers]
 		PAM '19

data
scripts		 Tracing the Path to YouTube - A Quantification of Path Lengths and Latencies towards Content Caches
Trinh Viet Doan, Ljubica Pajević, Vaibhav Bajpai, Jörg Ott
IEEE Communications Magazine
January 2019 [Impact Factor: 10.44]
 		COMMAG '19

data
scripts 		Experience: Implications of Roaming in Europe
A. Mandalari, A. Lutu, A. Custura, A. Safari, O. Alay, M. Bagnulo,
V. Bajpai, A. Brunstrom, J. Ott, M. Mellia, G. Fairhurst
ACM MOBICOM Conference (Experience Paper)
New Delhi, October 2018 [22.5%, 42/187 papers] 		MOBICOM '18

web 		Inferring Persistent Interdomain Congestion
A. Dhamdhere, D. Clark, A. Gamero-Garrido, M. Luckie, R. Mok,
G. Akiwate, K. Gogia, V. Bajpai, A. Snoeren, k. claffy
ACM SIGCOMM Conference
Budapest, August 2018 [18%, 40/222 papers] 		SIGCOMM '18 Best Paper Award

data
scripts		 Measuring YouTube Content Delivery over IPv6
Vaibhav Bajpai, Saba Ahsan, Jürgen Schönwälder, Jörg Ott
ACM SIGCOMM Computer Communication Review (CCR)
October 2017 [Impact Factor: 3.81]
 		SIGCOMM CCR '17

data
scripts 		Dissecting Last-mile Latency Characteristics
Vaibhav Bajpai, Steffie Jacob Eravuchira, Jürgen Schönwälder
ACM SIGCOMM Computer Communication Review (CCR)
October 2017 [Impact Factor: 3.81] 		SIGCOMM CCR '17

data 		Lessons Learned from using the RIPE Atlas
Platform for Measurement Research
Vaibhav Bajpai, Steffie Jacob Eravuchira, Jürgen Schönwälder
ACM Computer Communication Review (CCR), July 2015 (Editorial) 		SIGCOMM CCR '15

data 		Measuring YouTube from Dual-Stacked Hosts
Saba Ahsan, Vaibhav Bajpai, Jörg Ott, Jürgen Schönwälder
Passive and Active Measurement Conference (PAM),
New York, March 2015 [27%, 27/100 papers] 		PAM '15