URL: https://blog.x.com/engineering/en_us/a/2012/caching-with-twemcache
Submission: On November 17 via api from US — Scanned from DE

Summary

This website contacted 3 IPs in 1 countries across 5 domains to perform 16 HTTP transactions. The main IP is 2606:4700:4400::6812:230a, located in United States and belongs to CLOUDFLARENET, US. The main domain is blog.x.com.
TLS certificate: Issued by E6 on October 8th 2024. Valid for: 3 months.
This is the only time blog.x.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 2606:4700:440... 13335 (CLOUDFLAR...)
1 2a04:4e42:8e:... 54113 (FASTLY)
16 3
Apex Domain
Subdomains
Transfer
1 twimg.com
pbs.twimg.com — Cisco Umbrella Rank: 1497
367 B
1 x.com
blog.x.com
x.com Failed
12 KB
0 ads-twitter.com Failed
static.ads-twitter.com Failed
0 twitter.com Failed
twitter.com Failed
platform.twitter.com Failed
0 cms-twdigitalassets.com Failed
cdn.cms-twdigitalassets.com Failed
16 5
Domain Requested by
1 pbs.twimg.com blog.x.com
1 blog.x.com
0 platform.twitter.com Failed blog.x.com
0 static.ads-twitter.com Failed blog.x.com
0 x.com Failed blog.x.com
0 twitter.com Failed blog.x.com
0 cdn.cms-twdigitalassets.com Failed blog.x.com
16 7
Subject Issuer Validity Valid
blog.x.com
E6
2024-10-08 -
2025-01-06
3 months crt.sh
*.twimg.com
DigiCert Global G2 TLS RSA SHA256 2020 CA1
2024-06-24 -
2025-07-25
a year crt.sh

This page contains 2 frames:

Primary Page: https://blog.x.com/engineering/en_us/a/2012/caching-with-twemcache
Frame ID: 1D6C9A533938E531BA5B1D49EFE110A2
Requests: 16 HTTP requests in this frame

Frame: data://truncated
Frame ID: 74DB33A2F86A09AD99F53F7E60C89BDA
Requests: 3 HTTP requests in this frame

Screenshot

Page Title

Caching with Twemcache

Detected technologies

Overall confidence: 100%
Detected patterns
  • <(?:param|embed|iframe)[^>]+youtube(?:-nocookie)?\.com/(?:v|embed)

Page Statistics

16
Requests

13 %
HTTPS

100 %
IPv6

5
Domains

7
Subdomains

3
IPs

1
Countries

13 kB
Transfer

51 kB
Size

3
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

16 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request caching-with-twemcache
blog.x.com/engineering/en_us/a/2012/
43 KB
12 KB
Document
General
Full URL
https://blog.x.com/engineering/en_us/a/2012/caching-with-twemcache
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:4400::6812:230a , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
72a1ef0e1f0fa6f2780cf35bad29d176284172e9b2373d5cb09538e19f5f8ecf
Security Headers
Name Value
Content-Security-Policy default-src 'self' ; connect-src 'self' https://*.twitter.com https://*.x.com https://s1259914507.t.eloqua.com; font-src 'self' https://*.twimg.com https://*.twitter.com https://*.x.com https://cdn.cms-twdigitalassets.com data:; frame-src 'self' https://twitter.com https://x.com https://*.twitter.com https://*.x.com; img-src 'self' https://*.twimg.com https://*.twitter.com https://*.x.com https://twitter.com https://x.com https://*.google-analytics.com https://*.analytics.google.com https://cdn.cms-twdigitalassets.com https://*.g.doubleclick.net https://www.google.com/ads/ga-audiences data:; media-src 'self' https://*.twimg.com https://*.twitter.com https://*.x.com https://cdn.cms-twdigitalassets.com; object-src 'self' ; script-src 'self' 'sha256-9G5TwxImuKFNB+uY9x5+mjMfXDSza+S1DEsjxK1xeWw=' https://cdn.syndication.twimg.com https://*.twitter.com https://*.x.com https://static.ads-twitter.com https://cdn.cms-twdigitalassets.com; style-src 'self' 'unsafe-inline' https://*.twimg.com https://*.twitter.com https://*.x.com https://cdn.cms-twdigitalassets.com; report-uri https://twitter.com/i/csp_report https://x.com/i/csp_report; frame-ancestors 'self'
Strict-Transport-Security max-age=631138519
X-Xss-Protection 0

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Response headers

age
0
cache-control
max-age=0
cf-cache-status
DYNAMIC
cf-ray
8e3bd0e73e88bbec-FRA
content-encoding
br
content-security-policy
default-src 'self' ; connect-src 'self' https://*.twitter.com https://*.x.com https://s1259914507.t.eloqua.com; font-src 'self' https://*.twimg.com https://*.twitter.com https://*.x.com https://cdn.cms-twdigitalassets.com data:; frame-src 'self' https://twitter.com https://x.com https://*.twitter.com https://*.x.com; img-src 'self' https://*.twimg.com https://*.twitter.com https://*.x.com https://twitter.com https://x.com https://*.google-analytics.com https://*.analytics.google.com https://cdn.cms-twdigitalassets.com https://*.g.doubleclick.net https://www.google.com/ads/ga-audiences data:; media-src 'self' https://*.twimg.com https://*.twitter.com https://*.x.com https://cdn.cms-twdigitalassets.com; object-src 'self' ; script-src 'self' 'sha256-9G5TwxImuKFNB+uY9x5+mjMfXDSza+S1DEsjxK1xeWw=' https://cdn.syndication.twimg.com https://*.twitter.com https://*.x.com https://static.ads-twitter.com https://cdn.cms-twdigitalassets.com; style-src 'self' 'unsafe-inline' https://*.twimg.com https://*.twitter.com https://*.x.com https://cdn.cms-twdigitalassets.com; report-uri https://twitter.com/i/csp_report https://x.com/i/csp_report; frame-ancestors 'self'
content-type
text/html
date
Sun, 17 Nov 2024 01:06:04 GMT
expires
Sun, 17 Nov 2024 01:06:04 GMT
perf
7402827104
server
cloudflare
strict-transport-security
max-age=631138519
vary
Cookie,X-Twitter-Internal,X-Twitter-IP-Tags
x-connection-hash
314386461ca025fba03b4674e4284983963ebe9d0d68a855393b4aee402f02ae
x-response-time
172
x-transaction-id
ab2b79e57afd15c6
x-xss-protection
0
main.css.twhash.a.f.93323ee71362f24d52dcf9de0c08e7ee.css
cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/css/
0
0

xHrnqf1T_normal.jpg
pbs.twimg.com/profile_images/880136122604507136/
0
367 B
Image
General
Full URL
https://pbs.twimg.com/profile_images/880136122604507136/xHrnqf1T_normal.jpg
Requested by
Host: blog.x.com
URL: https://blog.x.com/engineering/en_us/a/2012/caching-with-twemcache
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2a04:4e42:8e::159 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=631138519
X-Content-Type-Options nosniff

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer
https://blog.x.com/

Response headers

x-transaction-id
969e65d682e25fed
access-control-expose-headers
Content-Length
x-content-type-options
nosniff
server-timing
x-cache;desc=HIT, x-tw-cdn;desc=FT
x-cache
HIT, HIT
date
Sun, 17 Nov 2024 01:06:04 GMT
x-tw-cdn
FT
perf
7402827104
content-type
image/jpeg
x-served-by
cache-lhr-egll1980051-LHR, cache-fra-etou8220129-FRA, cache-tw-ZZZ1
strict-transport-security
max-age=631138519
cache-control
max-age=300, must-revalidate
timing-allow-origin
https://twitter.com, https://mobile.twitter.com
accept-ranges
bytes
access-control-allow-origin
*
content-length
0
caching_with_twemcache95.thumb.1280.1280.png
cdn.cms-twdigitalassets.com/content/dam/blog-twitter/archive/
0
0

print.css.twhash.a.f.35e55183669dbbc296574ccc045aa706.css
cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/css/
0
0

csp_report
twitter.com/i/
0
0

csp_report
x.com/i/
0
0

truncated
/ Frame 74DB
3 KB
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
04d05978fdb111358073ab0524e5c1fafc0826615c206987618416b8bd8a4747

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer

Response headers

Content-Type
image/png
truncated
/ Frame 74DB
5 KB
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
e4222715b556e7d99622c83e620d2f8e090047e56adb07923047f95828d561f2

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer

Response headers

Content-Type
image/png
truncated
/ Frame 74DB
155 B
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
7808605ddd1f0eaa454aa444293d2f0260943e51e53838fca46506e6a69fe521

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Referer

Response headers

Content-Type
image/png
oct.js
static.ads-twitter.com/
0
0

widgets.js
platform.twitter.com/
0
0

common.js.twhash.a.f.6faba5512d6318d6d297fa23835eddb8.js
cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/js/
0
0

critical.js.twhash.a.f.dca3d3e035056f8f21e88f36ecf1097f.js
cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/js/
0
0

app.js.twhash.a.f.9371de9c6b16290c3c35b018fc8fea9c.js
cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/js/
0
0

content.js.twhash.a.f.95d6562d87423297958b52dea41a0701.js
cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/js/
0
0

universal.js.twhash.a.f.cd8a119491a1717465e94211c946ba3b.js
cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/js/
0
0

clientlib-u12-data-protection-notice.min.twhash.a.cl.8d93205985d36dea4268f79e373e2b02.css
cdn.cms-twdigitalassets.com/etc/designs/common-twitter/
0
0

clientlib-u12-data-protection-notice.min.twhash.a.cl.3734d48c62d11c8682b708637c1691ea.js
cdn.cms-twdigitalassets.com/etc/designs/common-twitter/
0
0

Failed requests

These URLs were requested, but there was no response received. You will also see them in the list above.

Domain
cdn.cms-twdigitalassets.com
URL
https://cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/css/main.css.twhash.a.f.93323ee71362f24d52dcf9de0c08e7ee.css
Domain
cdn.cms-twdigitalassets.com
URL
https://cdn.cms-twdigitalassets.com/content/dam/blog-twitter/archive/caching_with_twemcache95.thumb.1280.1280.png
Domain
cdn.cms-twdigitalassets.com
URL
https://cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/css/print.css.twhash.a.f.35e55183669dbbc296574ccc045aa706.css
Domain
twitter.com
URL
https://twitter.com/i/csp_report
Domain
x.com
URL
https://x.com/i/csp_report
Domain
static.ads-twitter.com
URL
https://static.ads-twitter.com/oct.js
Domain
platform.twitter.com
URL
https://platform.twitter.com/widgets.js
Domain
cdn.cms-twdigitalassets.com
URL
https://cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/js/common.js.twhash.a.f.6faba5512d6318d6d297fa23835eddb8.js
Domain
cdn.cms-twdigitalassets.com
URL
https://cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/js/critical.js.twhash.a.f.dca3d3e035056f8f21e88f36ecf1097f.js
Domain
cdn.cms-twdigitalassets.com
URL
https://cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/js/app.js.twhash.a.f.9371de9c6b16290c3c35b018fc8fea9c.js
Domain
cdn.cms-twdigitalassets.com
URL
https://cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/js/content.js.twhash.a.f.95d6562d87423297958b52dea41a0701.js
Domain
cdn.cms-twdigitalassets.com
URL
https://cdn.cms-twdigitalassets.com/etc/designs/blog-twitter/public/js/universal.js.twhash.a.f.cd8a119491a1717465e94211c946ba3b.js
Domain
cdn.cms-twdigitalassets.com
URL
https://cdn.cms-twdigitalassets.com/etc/designs/common-twitter/clientlib-u12-data-protection-notice.min.twhash.a.cl.8d93205985d36dea4268f79e373e2b02.css
Domain
cdn.cms-twdigitalassets.com
URL
https://cdn.cms-twdigitalassets.com/etc/designs/common-twitter/clientlib-u12-data-protection-notice.min.twhash.a.cl.3734d48c62d11c8682b708637c1691ea.js

Verdicts & Comments Add Verdict or Comment

1 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.

object| 0

3 Cookies

Domain/Path Name / Value
.x.com/ Name: guest_id
Value: v1%3A173180556410236659
.x.com/ Name: ct0
Value: ab52cfbd75d8ac09d76914e15789275e
.blog.x.com/ Name: __cf_bm
Value: XiYVjvTZKEVJRjAULBwFIXuBXpHfdEKtAH7Aue64l2M-1731805564-1.0.1.1-.kVHWHs5u54yC0aPyZtpf5MKZaelsZSNGFXY._9UZXfwvvRZ.7LrhkY8W8GiGVS2XmItZPd7HWlOhZ.tYSCPAw

2 Console Messages

Source Level URL
Text
security error URL: https://blog.x.com/engineering/en_us/a/2012/caching-with-twemcache(Line 264)
Message:
Refused to frame 'https://www.youtube.com/' because it violates the following Content Security Policy directive: "frame-src 'self' https://twitter.com https://x.com https://*.twitter.com https://*.x.com".
network error URL: https://pbs.twimg.com/profile_images/880136122604507136/xHrnqf1T_normal.jpg
Message:
Failed to load resource: the server responded with a status of 404 ()

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
Content-Security-Policy default-src 'self' ; connect-src 'self' https://*.twitter.com https://*.x.com https://s1259914507.t.eloqua.com; font-src 'self' https://*.twimg.com https://*.twitter.com https://*.x.com https://cdn.cms-twdigitalassets.com data:; frame-src 'self' https://twitter.com https://x.com https://*.twitter.com https://*.x.com; img-src 'self' https://*.twimg.com https://*.twitter.com https://*.x.com https://twitter.com https://x.com https://*.google-analytics.com https://*.analytics.google.com https://cdn.cms-twdigitalassets.com https://*.g.doubleclick.net https://www.google.com/ads/ga-audiences data:; media-src 'self' https://*.twimg.com https://*.twitter.com https://*.x.com https://cdn.cms-twdigitalassets.com; object-src 'self' ; script-src 'self' 'sha256-9G5TwxImuKFNB+uY9x5+mjMfXDSza+S1DEsjxK1xeWw=' https://cdn.syndication.twimg.com https://*.twitter.com https://*.x.com https://static.ads-twitter.com https://cdn.cms-twdigitalassets.com; style-src 'self' 'unsafe-inline' https://*.twimg.com https://*.twitter.com https://*.x.com https://cdn.cms-twdigitalassets.com; report-uri https://twitter.com/i/csp_report https://x.com/i/csp_report; frame-ancestors 'self'
Strict-Transport-Security max-age=631138519
X-Xss-Protection 0