access-centier.info - urlscan.io

Summary

This website contacted 2 IPs in 1 countries across 2 domains to perform 7 HTTP transactions. The main IP is 2606:4700:3032::ac43:d423, located in United States and belongs to CLOUDFLARENET, US. The main domain is access-centier.info.
TLS certificate: Issued by GTS CA 1P5 on April 18th 2023. Valid for: 3 months.

This is the only time access-centier.info was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
1	2620:0:890::100 2620:0:890::100	54113 (FASTLY) (FASTLY)
1 7	2606:4700:303... 2606:4700:3032::ac43:d423	13335 (CLOUDFLAR...) (CLOUDFLARENET)
7	2

1 2620:0:890::100 (United States)

ASN54113 (FASTLY, US)

onlineaccess-centier.firebaseapp.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

7 2606:4700:3032::ac43:d423 (United States) 1 redirects

ASN13335 (CLOUDFLARENET, US)

access-centier.info	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
7	access-centier.info 1 redirects access-centier.info	24 KB
1	firebaseapp.com onlineaccess-centier.firebaseapp.com	459 B
7	2

	Domain	Requested by
7	access-centier.info	1 redirects onlineaccess-centier.firebaseapp.com access-centier.info
1	onlineaccess-centier.firebaseapp.com
7	2

This site contains no links.

Subject Issuer	Validity	Valid
firebaseapp.com GTS CA 1D4	`2023-03-07` - `2023-06-05`	3 months	crt.sh
access-centier.info GTS CA 1P5	`2023-04-18` - `2023-07-17`	3 months	crt.sh

This page contains 2 frames:

Primary Page: https://access-centier.info/
Frame ID: 723711984F01DB8FA9D11AFE461BC340
Requests: 4 HTTP requests in this frame

Frame: https://access-centier.info/cdn-cgi/challenge-platform/h/g/scripts/jsd/70d5f7ce/invisible.js
Frame ID: 26EEB66D2C81A01A0A9DE62C426D491D
Requests: 3 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

404 Not Found

Page URL History Show full URLs

https://onlineaccess-centier.firebaseapp.com/ Page URL
https://access-centier.info/ Page URL
https://access-centier.info/ Page URL

Page Statistics

7
Requests

86 %
HTTPS

100 %
IPv6

2
Domains

2
Subdomains

2
IPs

1
Countries

24 kB
Transfer

36 kB
Size

7
Cookies

0 Outgoing links

These are links going to different origins than the main page.

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

https://onlineaccess-centier.firebaseapp.com/ Page URL
https://access-centier.info/ Page URL
https://access-centier.info/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 3

https://access-centier.info/cdn-cgi/challenge-platform/scripts/invisible.js HTTP 302
https://access-centier.info/cdn-cgi/challenge-platform/h/g/scripts/jsd/70d5f7ce/invisible.js

7 HTTP transactions
0 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H2 200 / Show response
onlineaccess-centier.firebaseapp.com/ 207 B
459 B 16ms
3ms Document
text/html 2620:0:890::100
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL

https://onlineaccess-centier.firebaseapp.com/

Protocol

H2

Security

TLS 1.3, , AES_128_GCM

Server

2620:0:890::100 , United States, ASN54113 (FASTLY, US),

Reverse DNS

Software

/

Resource Hash

b6f66701b3f55f4bd0504302a156833cf03808ca69c425cc83f9351c330a8a24

Security Headers

Name	Value
Strict-Transport-Security	max-age=31556926; includeSubDomains; preload

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.121 Safari/537.36
accept-language: jp-JP,jp;q=0.9

Response headers

accept-ranges: bytes
alt-svc: h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
cache-control: max-age=3600
content-encoding: br
content-length: 97
content-type: text/html; charset=utf-8
date: Thu, 20 Apr 2023 04:03:45 GMT
etag: "1572d2fc9d67101a259e320fbdfe5db86cbcf6cd9c4e62f8aa8cefccb50acb25-br"
last-modified: Tue, 18 Apr 2023 22:49:21 GMT
strict-transport-security: max-age=31556926; includeSubDomains; preload
vary: x-fh-requested-host, accept-encoding
x-cache: HIT
x-cache-hits: 1
x-served-by: cache-tyo11940-TYO
x-timer: S1681963425.009426,VS0,VE1

GET
H2 503 / Show response
access-centier.info/ 7 KB
7 KB 863ms
613ms Document
text/html 2606:4700:3032::ac43:d423
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://access-centier.info/

Protocol

H2

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:3032::ac43:d423 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

35743307625a0622ff801afed743aa23ba51a995589a7920d138dc7df731b60a

Security Headers

Name	Value
X-Content-Type-Options	nosniff nosniff
X-Frame-Options	SAMEORIGIN
X-Xss-Protection	1; mode=block 1; mode=block

Request headers

Referer: https://onlineaccess-centier.firebaseapp.com/
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.121 Safari/537.36
accept-language: jp-JP,jp;q=0.9

Response headers

alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
cache-control: public, max-age=0 no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-cache-status: DYNAMIC
cf-ray: 7baa7fd00b6be08a-NRT
content-type: text/html; charset=utf-8
date: Thu, 20 Apr 2023 04:03:45 GMT
expires: 0
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
pragma: no-cache
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=rK3HP%2BmzC2C5nJvCt5jsZctqnH0fud7SvyoLf5ndYFWwzFfc5k5%2B3%2BduMd1Dz5rZX1xm3sF9Mv0Bhli%2FGHap6MRG4oG9TqT5aTxeGMUseZv%2FRJv5f7G8qtB%2FO4dzyBzGERsbSTCQ3BYVdS7Kmq7o3nE6"}],"group":"cf-nel","max_age":604800}
server: cloudflare
x-content-type-options: nosniff nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1; mode=block 1; mode=block

POST
H2 204 /
access-centier.info/ 0
753 B 317ms
316ms XHR
text/plain 2606:4700:3032::ac43:d423
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://access-centier.info/

Requested by

Host: onlineaccess-centier.firebaseapp.com
URL: https://onlineaccess-centier.firebaseapp.com/

Protocol

H2

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:3032::ac43:d423 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

Security Headers

Name	Value
X-Content-Type-Options	nosniff, nosniff
X-Frame-Options	SAMEORIGIN
X-Xss-Protection	1; mode=block, 1; mode=block

Request headers

X-Requested-TimeStamp-Expire
nJrabORULUs4Lgx1OU59Y1w6A: 4lf7duCvMIVl5Y9O38zR02pzNo
accept-language: jp-JP,jp;q=0.9
X-Requested-TimeStamp-Combination
X-Requested-Type-Combination: GET
Content-type: application/x-www-form-urlencoded
X-Requested-Type: GET
0xh7QorBVfikU0mqez5GSiy92JM: 39272442
Referer: https://access-centier.info/
X-Requested-with: XMLHttpRequest
X-Requested-TimeStamp
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.121 Safari/537.36

Response headers

pragma: no-cache
date: Thu, 20 Apr 2023 04:03:46 GMT
x-server-powered-by: Engintron
x-content-type-options: nosniff, nosniff
cf-cache-status: DYNAMIC
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
x-frame-options: SAMEORIGIN
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=puSb1CD%2BsLk%2FBvAwdHLMC8TpHlQLDAzDHQsmvvQwk5E2sF1LKnJjzZwoIGC%2Bo9RGYgqWk38Vnohy5q2wxB1KeM%2BYEaYgqS%2FWSW2RdxComUYKxqAA4AqL0sz9XmAwQub25AJ5kn2G0kYDwnm8a6zNHX1H"}],"group":"cf-nel","max_age":604800}
cache-control: public, max-age=0 no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-ray: 7baa7fd42eaee08a-NRT
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
x-xss-protection: 1; mode=block, 1; mode=block
expires: 0

GET
H2

200

invisible.js Show response
access-centier.info/cdn-cgi/challenge-platform/h/g/scripts/jsd/70d5f7ce/ Frame 26EE
Redirect Chain

https://access-centier.info/cdn-cgi/challenge-platform/scripts/invisible.js
https://access-centier.info/cdn-cgi/challenge-platform/h/g/scripts/jsd/70d5f7ce/invisible.js

23 KB
11 KB

10ms
10ms

Script
application/javascript

2606:4700:3032::ac43:d423
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://access-centier.info/cdn-cgi/challenge-platform/h/g/scripts/jsd/70d5f7ce/invisible.js

Protocol

H2

Server

2606:4700:3032::ac43:d423 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

bae2f34f57d1be58597566fe8bac1926b80e028b7f0366ce43f4a6253ced09dc

Security Headers

Name	Value
X-Content-Type-Options	nosniff

Request headers

accept-language: jp-JP,jp;q=0.9
Referer
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.121 Safari/537.36

Response headers

date: Thu, 20 Apr 2023 04:03:45 GMT
content-encoding: br
x-content-type-options: nosniff
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
vary: accept-encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=YUuWDLuJQoc4DEe2aE4L0cHTomVzAF3UrPwxtBkTVztdLcow5ajIg5dP1H6Jhs5OaPn%2F1zsisFPIyd%2BqFf6qXlJ7NygONTDSAQ611U8ICk%2Bon43IYnfzeofdPlHhWqpGoN7%2Bi2llZd8Z6LPq7mJ1%2Fq7J"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=UTF-8
cache-control: max-age=14400, public
cf-ray: 7baa7fd43ebde08a-NRT
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400

Redirect headers

date: Thu, 20 Apr 2023 04:03:45 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
vary: accept-encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=yCmU8QWl26SUEQbeXmNSEXTzE6J6IXV9Ph7cfr9kAA7DVMTx7U9IldViJxlxLSrseowYQ70XNVonxLVUslYmn0lxLu5XxRdzBl6wmHRNmAGe9FsmVOTVmpLSgkMWUedv52GXp9klOYEqE1ve2SaHCXc2"}],"group":"cf-nel","max_age":604800}
location: /cdn-cgi/challenge-platform/h/g/scripts/jsd/70d5f7ce/invisible.js
access-control-allow-origin: *
cache-control: max-age=300, public
cf-ray: 7baa7fd42eb0e08a-NRT
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400

GET
H3 200 pica.js
access-centier.info/cdn-cgi/challenge-platform/h/g/scripts/ Frame 26EE 6 KB
4 KB 13ms
13ms Other
application/javascript 2606:4700:3032::ac43:d423
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://access-centier.info/cdn-cgi/challenge-platform/h/g/scripts/pica.js

Protocol

H3

Security

QUIC, , AES_128_GCM

Server

2606:4700:3032::ac43:d423 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

6799f5e6a922c159da139fc9161d76e3f5308b8a94a1b067b56949b2edfb2f8e

Security Headers

Name	Value
X-Content-Type-Options	nosniff

Request headers

accept-language: jp-JP,jp;q=0.9
Referer
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.121 Safari/537.36

Response headers

date: Thu, 20 Apr 2023 04:03:45 GMT
content-encoding: br
x-content-type-options: nosniff
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
vary: accept-encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=mls6DnSZoQJ2rMcIntQWL3DP1dZ%2BDWzxPBs1pITH%2FZmoA%2FDc2Hl4ZVkla1mtqOdRkayV0ocU02tSdQGNRp1JZ%2BYWlVvczJUNTpZFN6vJ3VfqvKT1zZNA1S7JvKa8uR%2F4dSU08JZl9WOlTxXC9uVI6BBD"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=UTF-8
cache-control: max-age=14400, public
cf-ray: 7baa7fd46eff25f6-NRT
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400

POST
H3 200 7baa7fd00b6be08a Show response
access-centier.info/cdn-cgi/challenge-platform/h/g/cv/result/ Frame 26EE 2 B
642 B 20ms
19ms XHR
text/plain 2606:4700:3032::ac43:d423
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://access-centier.info/cdn-cgi/challenge-platform/h/g/cv/result/7baa7fd00b6be08a
Requested by: Host: access-centier.info
URL: https://access-centier.info/cdn-cgi/challenge-platform/scripts/invisible.js
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 2606:4700:3032::ac43:d423 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 2689367b205c16ce32ed4200942b8b8b1e262dfc70d9bc9fbc77c49699a4f1df

Request headers

Referer
accept-language: jp-JP,jp;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.121 Safari/537.36
Content-Type: application/json

Response headers

date: Thu, 20 Apr 2023 04:03:46 GMT
content-encoding: br
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=Sz2Z8UwYMWj%2Fe6M1HP4h3BAh1c9mM%2FGkmdvB706blYgK2qZVhZLRnl1pPuOryR6ecnREDCDYYIaBcsmoebCiY%2Fzo5QcJmcBWTqlXOQfbIuh26RIsO4i%2Fa556dAPlA8qk6rhioO8%2BXk8DTU06kItGe9Wx"}],"group":"cf-nel","max_age":604800}
content-type: text/plain; charset=UTF-8
cf-ray: 7baa7fd5d82d25f6-NRT
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400

GET
H3 404 Primary Request / Show response
access-centier.info/ 257 B
610 B 841ms
841ms Document
text/html 2606:4700:3032::ac43:d423
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://access-centier.info/

Requested by

Host: onlineaccess-centier.firebaseapp.com
URL: https://onlineaccess-centier.firebaseapp.com/

Protocol

H3

Security

QUIC, , AES_128_GCM

Server

2606:4700:3032::ac43:d423 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

e5128b5e331cad19df2f67041ffc85bf716d6e6106dea098c37524593fb268e9

Security Headers

Name	Value
X-Content-Type-Options	nosniff nosniff
X-Xss-Protection	1; mode=block 1; mode=block

Request headers

Referer: https://access-centier.info/
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.121 Safari/537.36
accept-language: jp-JP,jp;q=0.9

Response headers

alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
cf-cache-status: DYNAMIC
cf-ray: 7baa7fd6287a25f6-NRT
content-encoding: br
content-type: text/html
date: Thu, 20 Apr 2023 04:03:47 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=2ALuZKHDg9drlVHoqagD2DfZncGfZrm0pJoQwZfpNS2YmFyWg2B0UjJca6jdkqMOjCp3i%2BL1lIwr1YQ1I1%2Foc9DB58VavwHmmuyF0jrdLYLMho6dm5aVmY5O3xlizznz33vX15oN9Q5Y0nr%2Bw1cxD3gY"}],"group":"cf-nel","max_age":604800}
server: cloudflare
vary: Accept-Encoding
x-content-type-options: nosniff nosniff
x-xss-protection: 1; mode=block 1; mode=block

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.

boolean| credentialless

7 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

Domain/Path	Expires	Name / Value
access-centier.info/	1970-01-20 11:14:09	Name: s8grMQyJ341V0zcvLeUIJfOKchQ Value: UgNkT54q3IIF_a4qgjlVlN7g9Tc
.access-centier.info/	1970-01-20 11:12:45	Name: __cf_bm Value: g6RHsWDxkzfnCmYb9bNAvvRD2n.SsgNVC75ALVA0fGc-1681963426-0-AXbeqKayOzLPiUme48VTIG9Te9iJFFqA27WEil9A2Ju06Cc8eDNZTGMfI0fRZf9Tui8pQmDIcqbDn+VAsRlrnswg+VNrJH4ZFoaFCaawVNDw
access-centier.info/	1970-01-20 11:14:09	Name: MZ0WcqT3uqRgNZXOdxJAZVtGrT4 Value: eCFJ_ikPJ5M5yUayburiTIviYB4
access-centier.info/	1970-01-20 11:14:09	Name: xxavLlGtbhlzNmK6c2nz3jN3n34 Value: 1681963426
access-centier.info/	1970-01-20 11:14:09	Name: xt1gnLAKqFOOXJuj-YiAs6ZXUbk Value: 1682049826
access-centier.info/	1970-01-20 11:14:09	Name: YuKnIGPp9mX5V6slFUaSAjQNk94 Value: AIXjY1XTcNM8Z-ISfQVC2-QHRlI
access-centier.info/	1970-01-20 11:14:09	Name: He_KX3lTewuOk-34Jh2pzzxPE1I Value: HdDic6c-NTiKC0i5M88l0_fSNUM

2 Console Messages

A page may trigger messages to the console to be logged. These are often error messages about being unable to load a resource or execute a piece of JavaScript. Sometimes they also provide insight into the technology behind a website.

Source	Level	URL Text
network	error	URL: https://access-centier.info/ Message: Failed to load resource: the server responded with a status of 503 ()
network	error	URL: https://access-centier.info/ 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
Strict-Transport-Security	max-age=31556926; includeSubDomains; preload

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

access-centier.info
onlineaccess-centier.firebaseapp.com
2606:4700:3032::ac43:d423
2620:0:890::100
2689367b205c16ce32ed4200942b8b8b1e262dfc70d9bc9fbc77c49699a4f1df
35743307625a0622ff801afed743aa23ba51a995589a7920d138dc7df731b60a
6799f5e6a922c159da139fc9161d76e3f5308b8a94a1b067b56949b2edfb2f8e
b6f66701b3f55f4bd0504302a156833cf03808ca69c425cc83f9351c330a8a24
bae2f34f57d1be58597566fe8bac1926b80e028b7f0366ce43f4a6253ced09dc
e5128b5e331cad19df2f67041ffc85bf716d6e6106dea098c37524593fb268e9

access-centier.info Open in urlscan Pro 2606:4700:3032::ac43:d423 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Page Statistics

7 Requests

86 %HTTPS

100 %IPv6

2 Domains

2 Subdomains

2 IPs

1 Countries

24 kBTransfer

36 kBSize

7 Cookies

0 Outgoing links

Page URL History

Redirected requests

7 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Redirect headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Verdicts & Comments Add Verdict or Comment

1 JavaScript Global Variables

7 Cookies

2 Console Messages

Security Headers

Indicators

access-centier.info Open in urlscan Pro
2606:4700:3032::ac43:d423 Public Scan

Screenshot
Live screenshot

Full Image

7
Requests

86 %
HTTPS

100 %
IPv6

2
Domains

2
Subdomains

2
IPs

1
Countries

24 kB
Transfer

36 kB
Size

7
Cookies

7 HTTP transactions
0 data transactions