Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exploring Server-side Blocking of Regions   One of the Internet's greatest strengths is the degree to which it
facilitates access to any of its resources from users anywhere in the world.
However, users in the developing world have complained of websites blocking
their countries. We explore this phenomenon using a measurement study. With a
combination of automated page loads, manual checking, and traceroutes, we can
say, with high confidence, that some websites do block users from some regions.
We cannot say, with high confidence, why, or even based on what criteria, they
do so except for in some cases where the website states a reason. We do report
qualitative evidence that fears of abuse and the costs of serving requests to
some regions may play a role.

34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio