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Paper Abstract and Keywords
Presentation 2026-10-07 15:15
A DNS-Based Latency-Aware Internet Server Ranking System for Local End Users
Jiaxuan Hu (HU), Yong Jin (Science Tokyo), Satoru Sunahara, Katsuyoshi Iida (HU) NS2026-84
Abstract (in Japanese) (See Japanese page) 
(in English) DNS is a fundamental Internet service that maps domain names to server addresses and often returns multiple can-
didate IP addresses to support content distribution, load balancing, and service availability [1]. Due to differences in network
distance, routing conditions, and server load, accessing these addresses may result in significantly different performance [2].
However, standard DNS resolution does not guarantee that the returned addresses are reachable or ordered according to their
actual latency [3]. Existing DNS-based server-selection mechanisms commonly use a client’s local DNS resolver as a proxy
for the client [4]. Such proxy-based selection may be inaccurate when the client and resolver are not topologically close, and it
does not directly measure the reachability and access latency of candidate addresses from the target local network. To address
this issue, we propose a DNS-based latency-aware server ranking system for local networks, consisting of a traffic-driven
online ranking optimizer and a DNSSEC-transparent forwarder, as shown in Fig. 1. The optimizer captures and analyzes local
traffic to identify service usage patterns and prioritize multi-IP FQDNs (Fully Qualified Domain Names), then actively mea-
sures candidate addresses and updates their rankings using time-windowed reachability and latency statistics. The forwarder,
deployed at the local full-service resolver, relays DNS queries and responses, reorders the returned addresses according to the
optimized ranking, and preserves DNSSEC validation. Experimental results demonstrate that the proposed system improves
server selection for local users while preserving DNSSEC and maintaining efficient DNS resolution
Keyword (in Japanese) (See Japanese page) 
(in English) DNS server selection / network latency / DNSSEC / active measurement / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 183, NS2026-84, pp. 7-7, Oct. 2026.
Paper # NS2026-84 
Date of Issue 2026-09-30 (NS) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF NS2026-84

Conference Information
Committee NS  
Conference Date 2026-10-07 - 2026-10-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido University + Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network architecture (5G, Local 5G, Beyond5G, Mobile networks, Ad-hoc and sensor networks, Overlay and P2P networks, Programmable networks, SDN/NFV, IoT, Network slicing), Next generation packet transport (High speed Ethernet, IP over WDM, Multi-service package technology, MPLS), Grid, etc. 
Paper Information
Registration To NS 
Conference Code 2026-10-NS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A DNS-Based Latency-Aware Internet Server Ranking System for Local End Users 
Sub Title (in English)  
Keyword(1) DNS server selection  
Keyword(2) network latency  
Keyword(3) DNSSEC  
Keyword(4) active measurement  
Keyword(5)  
Keyword(6)  
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1st Author's Name Jiaxuan Hu  
1st Author's Affiliation Hokkaido University (HU)
2nd Author's Name Yong Jin  
2nd Author's Affiliation Institute of Science, Tokyo (Science Tokyo)
3rd Author's Name Satoru Sunahara  
3rd Author's Affiliation Hokkaido University (HU)
4th Author's Name Katsuyoshi Iida  
4th Author's Affiliation Hokkaido University (HU)
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Speaker Author-1 
Date Time 2026-10-07 15:15:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2026-84 
Volume (vol) vol.126 
Number (no) no.183 
Page p.7 
#Pages 1 
Date of Issue 2026-09-30 (NS) 

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