URL: https://letter.cosh.kr/
Submission: On September 19 via api from US — Scanned from US

Summary

This website contacted 4 IPs in 2 countries across 4 domains to perform 10 HTTP transactions. The main IP is 118.218.182.62, located in Ansan-si, Korea, Republic Of and belongs to SKB-AS SK Broadband Co Ltd, KR. The main domain is letter.cosh.kr.
TLS certificate: Issued by E6 on September 18th 2024. Valid for: 3 months.
This is the only time letter.cosh.kr was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
5 118.218.182.62 9318 (SKB-AS SK...)
1 2 2606:4700::68... 13335 (CLOUDFLAR...)
3 2a04:4e42:600... 54113 (FASTLY)
1 2607:f8b0:400... 15169 (GOOGLE)
10 4
Apex Domain
Subdomains
Transfer
5 cosh.kr
letter.cosh.kr
3 KB
3 jsdelivr.net
cdn.jsdelivr.net — Cisco Umbrella Rank: 314
2 MB
2 unpkg.com
unpkg.com — Cisco Umbrella Rank: 797
46 KB
1 googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 31
40 KB
10 4
Domain Requested by
5 letter.cosh.kr letter.cosh.kr
3 cdn.jsdelivr.net letter.cosh.kr
2 unpkg.com 1 redirects letter.cosh.kr
1 fonts.googleapis.com letter.cosh.kr
10 4

This site contains no links.

Subject Issuer Validity Valid
home.cosh.kr
E6
2024-09-18 -
2024-12-17
3 months crt.sh
jsdelivr.net
GlobalSign Atlas R3 DV TLS CA 2024 Q3
2024-07-30 -
2025-08-31
a year crt.sh
upload.video.google.com
WR2
2024-08-12 -
2024-11-04
3 months crt.sh

This page contains 1 frames:

Primary Page: https://letter.cosh.kr/
Frame ID: 9D305CCCEB4046E24BBD989AF46E4F02
Requests: 10 HTTP requests in this frame

Screenshot

Page Title

Letters Online

Detected technologies

Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]*?bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.css
  • bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.js

Overall confidence: 100%
Detected patterns
  • //cdn\.jsdelivr\.net/

Page Statistics

10
Requests

90 %
HTTPS

75 %
IPv6

4
Domains

4
Subdomains

4
IPs

2
Countries

2170 kB
Transfer

2521 kB
Size

0
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 0
  • https://unpkg.com/bootstrap@5/dist/css/bootstrap.min.css HTTP 302
  • https://unpkg.com/bootstrap@5.3.3/dist/css/bootstrap.min.css

10 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
letter.cosh.kr/
2 KB
1 KB
Document
General
Full URL
https://letter.cosh.kr/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
118.218.182.62 Ansan-si, Korea, Republic Of, ASN9318 (SKB-AS SK Broadband Co Ltd, KR),
Reverse DNS
Software
Apache/2.4.57 (Debian) /
Resource Hash
73d1b10ee2943a4e9c157d82e894a79f0ffb1f4c7fcb1c6b17aebbffd8412f24

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Response headers

Accept-Ranges
bytes
Connection
Keep-Alive
Content-Encoding
gzip
Content-Length
814
Content-Type
text/html
Date
Thu, 19 Sep 2024 01:56:55 GMT
ETag
"667-61612d260b58d-gzip"
Keep-Alive
timeout=5, max=100
Last-Modified
Sun, 14 Apr 2024 18:39:15 GMT
Server
Apache/2.4.57 (Debian)
Vary
Accept-Encoding
bootstrap.min.css
unpkg.com/bootstrap@5.3.3/dist/css/
Redirect Chain
  • https://unpkg.com/bootstrap@5/dist/css/bootstrap.min.css
  • https://unpkg.com/bootstrap@5.3.3/dist/css/bootstrap.min.css
227 KB
46 KB
Stylesheet
General
Full URL
https://unpkg.com/bootstrap@5.3.3/dist/css/bootstrap.min.css
Requested by
Host: letter.cosh.kr
URL: https://letter.cosh.kr/
Protocol
H2
Server
2606:4700::6811:f6cb , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
3c8f27e6009ccfd710a905e6dcf12d0ee3c6f2ac7da05b0572d3e0d12e736fc8
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer
https://letter.cosh.kr/

Response headers

content-encoding
br
cf-cache-status
HIT
etag
"38d63-xawd7pYctZoEUlbsID9p4xeHL3w"
age
6061178
x-content-type-options
nosniff
date
Thu, 19 Sep 2024 01:56:55 GMT
content-type
text/css; charset=utf-8
last-modified
Sat, 26 Oct 1985 08:15:00 GMT
fly-request-id
01J2FBHRQ7J1E9WD7XVX7Y1MPM-mia
vary
Accept-Encoding
strict-transport-security
max-age=31536000; includeSubDomains; preload
cache-control
public, max-age=31536000
via
1.1 fly.io
cf-ray
8c55f647fc75a54f-MIA
access-control-allow-origin
*
server
cloudflare

Redirect headers

strict-transport-security
max-age=31536000; includeSubDomains; preload
cache-control
public, s-maxage=600, max-age=60
location
/bootstrap@5.3.3/dist/css/bootstrap.min.css
content-encoding
br
cf-cache-status
EXPIRED
x-content-type-options
nosniff
via
1.1 fly.io
cf-ray
8c55f6470aa8a54f-MIA
access-control-allow-origin
*
date
Thu, 19 Sep 2024 01:56:55 GMT
content-type
text/plain; charset=utf-8
vary
Accept, Accept-Encoding
fly-request-id
01J83ZYA43GAMPT2KXQTAVJ6BB-mia
server
cloudflare
bootstrap.min.js
cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/
59 KB
17 KB
Script
General
Full URL
https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.min.js
Requested by
Host: letter.cosh.kr
URL: https://letter.cosh.kr/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:4e42:600::485 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
5c36e28c9a7bd864b673e223db7e1934923227536ffbdf871f58b6f09b9ac8c9
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Origin
https://letter.cosh.kr
Referer
https://letter.cosh.kr/

Response headers

access-control-expose-headers
*
content-encoding
br
etag
W/"eab9-PwlPAQv7DAIqUbYneNQ2HRytP9Y"
age
1698975
x-content-type-options
nosniff
x-jsd-version-type
version
alt-svc
h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
x-cache
HIT, HIT
date
Thu, 19 Sep 2024 01:56:55 GMT
content-type
application/javascript; charset=utf-8
x-served-by
cache-fra-eddf8230043-FRA, cache-mia-kmia1760083-MIA
vary
Accept-Encoding
strict-transport-security
max-age=31536000; includeSubDomains; preload
cache-control
public, max-age=31536000, s-maxage=31536000, immutable
timing-allow-origin
*
cross-origin-resource-policy
cross-origin
accept-ranges
bytes
access-control-allow-origin
*
content-length
17261
x-jsd-version
5.0.2
index.css
letter.cosh.kr/src/css/
482 B
609 B
Stylesheet
General
Full URL
https://letter.cosh.kr/src/css/index.css
Requested by
Host: letter.cosh.kr
URL: https://letter.cosh.kr/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
118.218.182.62 Ansan-si, Korea, Republic Of, ASN9318 (SKB-AS SK Broadband Co Ltd, KR),
Reverse DNS
Software
Apache/2.4.57 (Debian) /
Resource Hash
2d32ba66741a90d14443233b376459974d449282a9dbff376b089f005dd4d4ef

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer
https://letter.cosh.kr/

Response headers

Content-Encoding
gzip
ETag
"1e2-61612e4031f7b-gzip"
Connection
Keep-Alive
Accept-Ranges
bytes
Content-Length
274
Keep-Alive
timeout=5, max=99
Date
Thu, 19 Sep 2024 01:56:55 GMT
Last-Modified
Sun, 14 Apr 2024 18:44:10 GMT
Vary
Accept-Encoding
Server
Apache/2.4.57 (Debian)
Content-Type
text/css
common.css
letter.cosh.kr/src/css/
481 B
637 B
Stylesheet
General
Full URL
https://letter.cosh.kr/src/css/common.css
Requested by
Host: letter.cosh.kr
URL: https://letter.cosh.kr/src/css/index.css
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
118.218.182.62 Ansan-si, Korea, Republic Of, ASN9318 (SKB-AS SK Broadband Co Ltd, KR),
Reverse DNS
Software
Apache/2.4.57 (Debian) /
Resource Hash
0a483df1fec9cfffe3fdbe983a7a1aef50f880cbef5ad829d2aabd085833767b

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer
https://letter.cosh.kr/src/css/index.css

Response headers

Content-Encoding
gzip
ETag
"1e1-62267f93e393f-gzip"
Connection
Keep-Alive
Accept-Ranges
bytes
Content-Length
302
Keep-Alive
timeout=5, max=98
Date
Thu, 19 Sep 2024 01:56:56 GMT
Last-Modified
Wed, 18 Sep 2024 17:16:58 GMT
Vary
Accept-Encoding
Server
Apache/2.4.57 (Debian)
Content-Type
text/css
font.css
letter.cosh.kr/src/css/
744 B
627 B
Stylesheet
General
Full URL
https://letter.cosh.kr/src/css/font.css
Requested by
Host: letter.cosh.kr
URL: https://letter.cosh.kr/src/css/common.css
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
118.218.182.62 Ansan-si, Korea, Republic Of, ASN9318 (SKB-AS SK Broadband Co Ltd, KR),
Reverse DNS
Software
Apache/2.4.57 (Debian) /
Resource Hash
8ea6f4d14d4978141d16cf53c896110aedda1098b5709f283f19e03bdb707272

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer
https://letter.cosh.kr/src/css/common.css

Response headers

Content-Encoding
gzip
ETag
"2e8-62267d1d41dc7-gzip"
Connection
Keep-Alive
Accept-Ranges
bytes
Content-Length
292
Keep-Alive
timeout=5, max=97
Date
Thu, 19 Sep 2024 01:56:56 GMT
Last-Modified
Wed, 18 Sep 2024 17:05:57 GMT
Vary
Accept-Encoding
Server
Apache/2.4.57 (Debian)
Content-Type
text/css
nanummyeongjo.css
fonts.googleapis.com/earlyaccess/
169 KB
40 KB
Stylesheet
General
Full URL
https://fonts.googleapis.com/earlyaccess/nanummyeongjo.css
Requested by
Host: letter.cosh.kr
URL: https://letter.cosh.kr/src/css/font.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2607:f8b0:4006:80b::200a , United States, ASN15169 (GOOGLE, US),
Reverse DNS
Software
ESF /
Resource Hash
c4b2cfaf44f6b4f2d8d3eb1442ca36eced994825fc31ecebf3fce39109f116a8
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

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer
https://letter.cosh.kr/

Response headers

content-encoding
gzip
x-content-type-options
nosniff
expires
Thu, 19 Sep 2024 01:56:56 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Thu, 19 Sep 2024 01:56:56 GMT
content-type
text/css; charset=utf-8
last-modified
Thu, 19 Sep 2024 01:51:00 GMT
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
cross-origin-opener-policy
same-origin-allow-popups
cross-origin-resource-policy
cross-origin
access-control-allow-origin
*
x-xss-protection
0
server
ESF
GangwonEdu_OTFBoldA.woff
cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2201-2@1.0/
1 MB
1 MB
Font
General
Full URL
https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2201-2@1.0/GangwonEdu_OTFBoldA.woff
Requested by
Host: letter.cosh.kr
URL: https://letter.cosh.kr/src/css/font.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:4e42:600::485 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
3315436637d4396558bbf5244d94f0b4a617832720175af10021822b8094e5b7
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Origin
https://letter.cosh.kr
Referer
https://letter.cosh.kr/

Response headers

access-control-expose-headers
*
etag
W/"149684-IX1DZzV+/JP7OfJPrr2VnjmwTYs"
age
857648
x-content-type-options
nosniff
x-jsd-version-type
version
alt-svc
h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
x-cache
HIT, HIT
date
Thu, 19 Sep 2024 01:56:56 GMT
content-type
font/woff
x-served-by
cache-fra-eddf8230120-FRA, cache-mia-kmia1760083-MIA
vary
Accept-Encoding
strict-transport-security
max-age=31536000; includeSubDomains; preload
cache-control
public, max-age=31536000, s-maxage=31536000, immutable
timing-allow-origin
*
cross-origin-resource-policy
cross-origin
accept-ranges
bytes
access-control-allow-origin
*
content-length
1349252
x-jsd-version
1.0
Ownglyph_Dailyokja-Rg.woff2
cdn.jsdelivr.net/gh/projectnoonnu/2403@1.0/
744 KB
745 KB
Font
General
Full URL
https://cdn.jsdelivr.net/gh/projectnoonnu/2403@1.0/Ownglyph_Dailyokja-Rg.woff2
Requested by
Host: letter.cosh.kr
URL: https://letter.cosh.kr/src/css/font.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:4e42:600::485 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
5d49ddb9a3ac980dd6ea1e2cd7c7e4ac512e273fc303930e92d39d4a1d91917a
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Origin
https://letter.cosh.kr
Referer
https://letter.cosh.kr/

Response headers

access-control-expose-headers
*
etag
W/"ba144-MBP/YxEQQ/f5RaNQ60TNfJlhhgo"
age
1071008
x-content-type-options
nosniff
x-jsd-version-type
version
alt-svc
h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
x-cache
HIT, MISS
date
Thu, 19 Sep 2024 01:56:56 GMT
content-type
font/woff2
x-served-by
cache-fra-eddf8230070-FRA, cache-mia-kmia1760083-MIA
vary
Accept-Encoding
strict-transport-security
max-age=31536000; includeSubDomains; preload
cache-control
public, max-age=31536000, s-maxage=31536000, immutable
timing-allow-origin
*
cross-origin-resource-policy
cross-origin
accept-ranges
bytes
access-control-allow-origin
*
content-length
762180
x-jsd-version
1.0
favicon.ico
letter.cosh.kr/
277 B
493 B
Other
General
Full URL
https://letter.cosh.kr/favicon.ico
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
118.218.182.62 Ansan-si, Korea, Republic Of, ASN9318 (SKB-AS SK Broadband Co Ltd, KR),
Reverse DNS
Software
Apache/2.4.57 (Debian) /
Resource Hash
ad70bc0ea391ffbecda72003de480cb2738ec1f3760f65e9bb59bdae28d2426e

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer
https://letter.cosh.kr/

Response headers

Keep-Alive
timeout=5, max=96
Content-Length
277
Date
Thu, 19 Sep 2024 01:56:58 GMT
Content-Type
text/html; charset=iso-8859-1
Server
Apache/2.4.57 (Debian)
Connection
Keep-Alive

Verdicts & Comments Add Verdict or Comment

3 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.

number| uidEvent object| bootstrap function| readLetter

0 Cookies

1 Console Messages

Source Level URL
Text
network error URL: https://letter.cosh.kr/favicon.ico
Message:
Failed to load resource: the server responded with a status of 404 (Not Found)