URL: https://edu-ctf.zoolab.org/
Submission: On November 04 via automatic, source certstream-suspicious

Summary

This website contacted 6 IPs in 4 countries across 5 domains to perform 10 HTTP transactions. The main IP is 60.250.197.227, located in Hsinchu, Taiwan and belongs to HINET Data Communication Business Group, TW. The main domain is edu-ctf.zoolab.org.
TLS certificate: Issued by Let's Encrypt Authority X3 on November 4th 2020. Valid for: 3 months.
This is the only time edu-ctf.zoolab.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
3 60.250.197.227 3462 (HINET Dat...)
2 2a04:4e42:1b:... 54113 (FASTLY)
1 2a00:1450:400... 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
1 2606:4700::68... 13335 (CLOUDFLAR...)
2 2a00:1450:400... 15169 (GOOGLE)
10 6
Domain Requested by
3 edu-ctf.zoolab.org edu-ctf.zoolab.org
2 fonts.gstatic.com fonts.googleapis.com
2 cdn.jsdelivr.net edu-ctf.zoolab.org
1 cdnjs.cloudflare.com edu-ctf.zoolab.org
1 ajax.googleapis.com edu-ctf.zoolab.org
1 fonts.googleapis.com edu-ctf.zoolab.org
10 6

This site contains links to these domains. Also see Links.

Domain
hw00.zoolab.org
cool.ntu.edu.tw
Subject Issuer Validity Valid
edu-ctf.zoolab.org
Let's Encrypt Authority X3
2020-11-04 -
2021-02-02
3 months crt.sh
f3.shared.global.fastly.net
GlobalSign CloudSSL CA - SHA256 - G3
2020-10-26 -
2021-04-17
6 months crt.sh
upload.video.google.com
GTS CA 1O1
2020-10-06 -
2020-12-29
3 months crt.sh
sni.cloudflaressl.com
Cloudflare Inc ECC CA-3
2020-10-21 -
2021-10-20
a year crt.sh
*.gstatic.com
GTS CA 1O1
2020-10-06 -
2020-12-29
3 months crt.sh

This page contains 1 frames:

Primary Page: https://edu-ctf.zoolab.org/
Frame ID: B050B32E824BA099C8C53CF5112B229B
Requests: 10 HTTP requests in this frame

Screenshot


Detected technologies

Overall confidence: 100%
Detected patterns
  • headers server /nginx(?:\/([\d.]+))?/i

Page Statistics

10
Requests

100 %
HTTPS

83 %
IPv6

5
Domains

6
Subdomains

6
IPs

4
Countries

143 kB
Transfer

724 kB
Size

1
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

10 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request Cookie set /
edu-ctf.zoolab.org/
6 KB
3 KB
Document
General
Full URL
https://edu-ctf.zoolab.org/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
60.250.197.227 Hsinchu, Taiwan, ASN3462 (HINET Data Communication Business Group, TW),
Reverse DNS
60-250-197-227.HINET-IP.hinet.net
Software
nginx/1.18.0 /
Resource Hash
6feef062b19fa977744f623a1135c1edaa48359fce06e8b0167c42f1bc3c4667
Security Headers
Name Value
Strict-Transport-Security max-age=0; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Host
edu-ctf.zoolab.org
Connection
keep-alive
Pragma
no-cache
Cache-Control
no-cache
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Sec-Fetch-Site
none
Sec-Fetch-Mode
navigate
Sec-Fetch-User
?1
Sec-Fetch-Dest
document
Accept-Encoding
gzip, deflate, br
Accept-Language
en-US
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Server
nginx/1.18.0
Date
Wed, 04 Nov 2020 10:57:41 GMT
Content-Type
text/html;charset=utf-8
Transfer-Encoding
chunked
Connection
keep-alive
Set-Cookie
rack.session=BAh7B0kiD3Nlc3Npb25faWQGOgZFVEkiRTRmNjdiMjI3OTBiZjc1YjViMWY3%0AMmExZDllZGIyYzQ3NTM3MmI1NTU2YzJlN2I1Njk1ODQxZDY3MTQyZmI0NGIG%0AOwBGSSIKZmxhc2gGOwBGewA%3D%0A--6c91e3e58315ce2333a4a9593e606c851cf0929b; path=/; expires=Fri, 04 Dec 2020 03:56:05 -0000; HttpOnly
Vary
Accept-Encoding
Content-Encoding
gzip
X-XSS-Protection
1; mode=block
X-Content-Type-Options
nosniff
X-Frame-Options
SAMEORIGIN
Strict-Transport-Security
max-age=0; includeSubDomains
semantic.min.css
cdn.jsdelivr.net/semantic-ui/0.19.0/css/
231 KB
36 KB
Stylesheet
General
Full URL
https://cdn.jsdelivr.net/semantic-ui/0.19.0/css/semantic.min.css
Requested by
Host: edu-ctf.zoolab.org
URL: https://edu-ctf.zoolab.org/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2a04:4e42:1b::621 , Ascension Island, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
f358888793f788ddd14df3766a500ffda0a2d6df463a9616519803a70d15a145
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Referer
https://edu-ctf.zoolab.org/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

strict-transport-security
max-age=31536000; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
age
538758
x-cache
HIT, HIT
status
200
cross-origin-resource-policy
cross-origin
content-length
36567
etag
W/"39c5d-WmFkaJkhYfWIxXn3j5OJ/Tc4VNU"
x-served-by
cache-fra19144-FRA, cache-hhn4080-HHN
date
Wed, 04 Nov 2020 03:56:05 GMT
vary
Accept-Encoding
content-type
text/css; charset=utf-8
access-control-allow-origin
*
access-control-expose-headers
*
cache-control
public, max-age=31536000, s-maxage=31536000, immutable
accept-ranges
bytes
timing-allow-origin
*
css
fonts.googleapis.com/
15 KB
1 KB
Stylesheet
General
Full URL
https://fonts.googleapis.com/css?family=Source+Sans+Pro:400,700|Open+Sans:300italic,400,300,700
Requested by
Host: edu-ctf.zoolab.org
URL: https://edu-ctf.zoolab.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:81f::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
ESF /
Resource Hash
a361e821099030d4c4f2afebe35c502a5db4696a0c01dfa534f2af875a5e5979
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

Referer
https://edu-ctf.zoolab.org/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

strict-transport-security
max-age=31536000
content-encoding
gzip
x-content-type-options
nosniff
status
200
alt-svc
h3-Q050=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-T050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
x-xss-protection
0
last-modified
Wed, 04 Nov 2020 03:56:05 GMT
server
ESF
date
Wed, 04 Nov 2020 03:56:05 GMT
x-frame-options
SAMEORIGIN
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
expires
Wed, 04 Nov 2020 03:56:05 GMT
ctf.9e8967757d7720ec683a20398f26e3f4.css
edu-ctf.zoolab.org/assets/
631 B
1 KB
Stylesheet
General
Full URL
https://edu-ctf.zoolab.org/assets/ctf.9e8967757d7720ec683a20398f26e3f4.css
Requested by
Host: edu-ctf.zoolab.org
URL: https://edu-ctf.zoolab.org/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
60.250.197.227 Hsinchu, Taiwan, ASN3462 (HINET Data Communication Business Group, TW),
Reverse DNS
60-250-197-227.HINET-IP.hinet.net
Software
nginx/1.18.0 /
Resource Hash
1e51e5dbf2671dcd98e4ec72c401aa43ea342b2f194ce25ec6c42c6f8b419a83
Security Headers
Name Value
Strict-Transport-Security max-age=0; includeSubDomains
X-Content-Type-Options nosniff

Request headers

Referer
https://edu-ctf.zoolab.org/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Wed, 04 Nov 2020 10:57:42 GMT
Content-Encoding
gzip
X-Content-Type-Options
nosniff
Last-Modified
Wed, 04 Sep 2019 06:01:35 GMT
Server
nginx/1.18.0
Vary
Accept-Encoding
Connection
keep-alive
Content-Type
text/css;charset=utf-8
Cache-Control
public, max-age=2592000
Transfer-Encoding
chunked
Strict-Transport-Security
max-age=0; includeSubDomains
Expires
Fri, 04 Dec 2020 03:56:05 GMT
jquery.min.js
ajax.googleapis.com/ajax/libs/jquery/2.1.1/
82 KB
29 KB
Script
General
Full URL
https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js
Requested by
Host: edu-ctf.zoolab.org
URL: https://edu-ctf.zoolab.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:801::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
sffe /
Resource Hash
874706b2b1311a0719b5267f7d1cf803057e367e94ae1ff7bf78c5450d30f5d4
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

Referer
https://edu-ctf.zoolab.org/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date
Mon, 02 Nov 2020 11:55:21 GMT
content-encoding
gzip
x-content-type-options
nosniff
age
144044
status
200
alt-svc
h3-Q050=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-T050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
29671
x-xss-protection
0
last-modified
Tue, 03 Mar 2020 19:15:00 GMT
server
sffe
vary
Accept-Encoding
content-type
text/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
public, max-age=31536000, stale-while-revalidate=2592000
accept-ranges
bytes
timing-allow-origin
*
expires
Tue, 02 Nov 2021 11:55:21 GMT
semantic.js
cdn.jsdelivr.net/semantic-ui/0.19.0/javascript/
361 KB
49 KB
Script
General
Full URL
https://cdn.jsdelivr.net/semantic-ui/0.19.0/javascript/semantic.js
Requested by
Host: edu-ctf.zoolab.org
URL: https://edu-ctf.zoolab.org/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2a04:4e42:1b::621 , Ascension Island, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
24fad9205af3451fac1c286570ed9e9343e3c77ee3a83e14af3dfcabb0248a72
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Referer
https://edu-ctf.zoolab.org/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

strict-transport-security
max-age=31536000; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
age
0
x-cache
MISS, MISS
status
200
cross-origin-resource-policy
cross-origin
content-length
50345
etag
W/"5a3ed-tL0I3fzq7FsUxG4Z3SH5XC1sd0Y"
x-served-by
cache-fra19149-FRA, cache-hhn4080-HHN
date
Wed, 04 Nov 2020 03:56:05 GMT
vary
Accept-Encoding
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
access-control-expose-headers
*
cache-control
public, max-age=31536000, s-maxage=31536000, immutable
accept-ranges
bytes
timing-allow-origin
*
jquery.address.min.js
cdnjs.cloudflare.com/ajax/libs/jquery.address/1.6/
9 KB
4 KB
Script
General
Full URL
https://cdnjs.cloudflare.com/ajax/libs/jquery.address/1.6/jquery.address.min.js
Requested by
Host: edu-ctf.zoolab.org
URL: https://edu-ctf.zoolab.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700::6810:125e , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
98b08f6077cd4448521131501aea308a5637cc10191a70ced9cc429c2126f3f2
Security Headers
Name Value
Strict-Transport-Security max-age=15780000

Request headers

Referer
https://edu-ctf.zoolab.org/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date
Wed, 04 Nov 2020 03:56:05 GMT
content-encoding
br
vary
Accept-Encoding
cf-cache-status
HIT
nel
{"report_to":"cf-nel","max_age":604800}
age
324
x-via
cfworker/kv
status
200
content-length
3309
cf-request-id
0632fed5fa00000eb32c31a000000001
timing-allow-origin
*
last-modified
Mon, 04 May 2020 16:11:46 GMT
server
cloudflare
etag
"5eb03ec2-24bb"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
strict-transport-security
max-age=15780000
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report?s=PkJJUdHIVXKNRj1ZI6BYAk%2BTdP1Z3dWlx3Mq8QjoUZZqLSR%2FLQaNQQYjYW5GbKwwsN5Cc2hwOdjivCEtXJR2UIKjpfiVkCwovp5Nh7jMOJbMpAnnyDpz%2FAE6B%2F0n7%2B0mUQ%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=30672000
accept-ranges
bytes
cf-ray
5ecb673658630eb3-FRA
expires
Mon, 25 Oct 2021 03:56:05 GMT
ctf.ead7f48e21cfab2414a9cdf344bdec3f.js
edu-ctf.zoolab.org/assets/
547 B
1 KB
Script
General
Full URL
https://edu-ctf.zoolab.org/assets/ctf.ead7f48e21cfab2414a9cdf344bdec3f.js
Requested by
Host: edu-ctf.zoolab.org
URL: https://edu-ctf.zoolab.org/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
60.250.197.227 Hsinchu, Taiwan, ASN3462 (HINET Data Communication Business Group, TW),
Reverse DNS
60-250-197-227.HINET-IP.hinet.net
Software
nginx/1.18.0 /
Resource Hash
f0a4c94c2dab3b726ba9fd305379efa277abc33c3c4a5bc8598ef6d36e7bc990
Security Headers
Name Value
Strict-Transport-Security max-age=0; includeSubDomains
X-Content-Type-Options nosniff

Request headers

Referer
https://edu-ctf.zoolab.org/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Wed, 04 Nov 2020 10:57:42 GMT
Content-Encoding
gzip
X-Content-Type-Options
nosniff
Last-Modified
Wed, 04 Sep 2019 06:01:35 GMT
Server
nginx/1.18.0
Vary
Accept-Encoding
Connection
keep-alive
Content-Type
application/javascript;charset=utf-8
Cache-Control
public, max-age=2592000
Transfer-Encoding
chunked
Strict-Transport-Security
max-age=0; includeSubDomains
Expires
Fri, 04 Dec 2020 03:56:05 GMT
mem8YaGs126MiZpBA-UFVZ0bf8pkAg.woff2
fonts.gstatic.com/s/opensans/v18/
9 KB
9 KB
Font
General
Full URL
https://fonts.gstatic.com/s/opensans/v18/mem8YaGs126MiZpBA-UFVZ0bf8pkAg.woff2
Requested by
Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Source+Sans+Pro:400,700|Open+Sans:300italic,400,300,700
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:815::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
sffe /
Resource Hash
54c64f3c66372027154f01fc9f24b4e25fdfe405b70d1994c79abbc2576ff775
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

Origin
https://edu-ctf.zoolab.org
Referer
https://fonts.googleapis.com/css?family=Source+Sans+Pro:400,700|Open+Sans:300italic,400,300,700
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date
Wed, 28 Oct 2020 11:20:34 GMT
x-content-type-options
nosniff
last-modified
Tue, 15 Sep 2020 18:09:28 GMT
server
sffe
age
578132
status
200
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
timing-allow-origin
*
alt-svc
h3-Q050=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-T050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
9132
x-xss-protection
0
expires
Thu, 28 Oct 2021 11:20:34 GMT
mem5YaGs126MiZpBA-UN7rgOUuhpKKSTjw.woff2
fonts.gstatic.com/s/opensans/v18/
9 KB
9 KB
Font
General
Full URL
https://fonts.gstatic.com/s/opensans/v18/mem5YaGs126MiZpBA-UN7rgOUuhpKKSTjw.woff2
Requested by
Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Source+Sans+Pro:400,700|Open+Sans:300italic,400,300,700
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:815::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
sffe /
Resource Hash
a48a6e4b14fe55f750c0a3dfb5a6f4941bdc06af0aa542b90de25c30c2b4625c
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

Origin
https://edu-ctf.zoolab.org
Referer
https://fonts.googleapis.com/css?family=Source+Sans+Pro:400,700|Open+Sans:300italic,400,300,700
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date
Fri, 30 Oct 2020 11:20:36 GMT
x-content-type-options
nosniff
last-modified
Tue, 15 Sep 2020 18:10:27 GMT
server
sffe
age
405330
status
200
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
timing-allow-origin
*
alt-svc
h3-Q050=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-T050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
9080
x-xss-protection
0
expires
Sat, 30 Oct 2021 11:20:36 GMT

Verdicts & Comments Add Verdict or Comment

7 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

function| showDirectoryPicker function| showOpenFilePicker function| showSaveFilePicker object| trustedTypes function| $ function| jQuery function| activeMenu

1 Cookies

Domain/Path Name / Value
edu-ctf.zoolab.org/ Name: rack.session
Value: BAh7B0kiD3Nlc3Npb25faWQGOgZFVEkiRTRmNjdiMjI3OTBiZjc1YjViMWY3%0AMmExZDllZGIyYzQ3NTM3MmI1NTU2YzJlN2I1Njk1ODQxZDY3MTQyZmI0NGIG%0AOwBGSSIKZmxhc2gGOwBGewA%3D%0A--6c91e3e58315ce2333a4a9593e606c851cf0929b

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header Value
Strict-Transport-Security max-age=0; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block