Usaco.guide USACO Guide
A free collection of curated, high-quality resources to take you from Bronze to Platinum and beyond.
Server IP address resolved: Yes
Http response code: 200
Response time: 0.18 sec.
Last Checked: 09/08/2024
Usaco.guide traffic volume is 1,655 unique daily visitors and their 3,311 pageviews. The web value rate of usaco.guide is 2,568 USD. Each visitor makes around 2.14 page views on average.
Usaco.guide belongs to AMAZON-02 - Amazon.com, Inc., US. Check the list of other websites hosted by AMAZON-02 - Amazon.com, Inc., US.
Usaco.guide registered under .GUIDE top-level domain. Check other websites in .GUIDE zone.
The last verification results, performed on (September 21, 2020) usaco.guide show that usaco.guide has an expired SSL certificate issued by Let's Encrypt (expired on December 05, 2020). Click “Refresh” button for SSL Information at the Safety Information section. Check the list of websites using SSL certificates issued by Let's Encrypt.
In accordance with Google Safe Browsing and Symantec usaco.guide is pretty a safe domain.
not found
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We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.
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Norton ConnectSafe evaluates usaco.guide for any unsafe and insecure content. The results are critical for families with young children.
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SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.
![](/images/safety/google_safe_browsing.png)
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
![](/images/safety/mcafee.png)
McAfee assesses usaco.guide for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze usaco.guide for mature or inappropriate content, only security checks are evaluated.
![](/images/safety/wot.png)
The WOT calculates reputation of the usaco.guide. This reputation system receives ratings from users and information from third-party sources, assesses the usaco.guide for safety features and confirms, whether usaco.guide is suitable for children.
Domain | usaco.guide |
Issuer Organization | Let's Encrypt |
Issuer | Let's Encrypt Authority X3 |
Algorithm | RSA-SHA256 |
Valid form | 09/06/2020 |
Expiration | 12/05/2020 |
Signed | Certificate is not self signed |
Additional Domains |
usaco.guide |
ASN ID: 16509
ASN Title: AMAZON-02 - Amazon.com, Inc., US
Last Update: 06/16/2024
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#
ASNumber: 16509
ASName: AMAZON-02
ASHandle: AS16509
RegDate: 2000-05-03
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/16509
OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/AMAZON-4
OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN
OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN
RTechHandle: AC6-ORG-ARIN
RTechName: Amazon-com Incorporated
RTechPhone: +1-206-266-2187
RTechEmail: ipmanagement@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/AC6-ORG-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#
Domain Name: usaco.guide
Registry Domain ID: 17ef6eb499e94bebb1fe2d599febfa8f-DONUTS
Registrar WHOIS Server: http://whois.cloudflare.com
Registrar URL: http://cloudflare.com
Updated Date: 2022-08-12T19:01:34Z
Creation Date: 2020-09-06T21:17:32Z
Registry Expiry Date: 2023-09-06T21:17:32Z
Registrar: Cloudflare, Inc
Registrar IANA ID: 1910
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Competitive Programming Initiative
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: CA
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: roxy.ns.cloudflare.com
Name Server: miles.ns.cloudflare.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2022-10-24T13:08:52Z
Host | A Record | TTL |
---|---|---|
usaco.guide | 76.76.21.21 | 60 |
Host | MX Record | Priority | TTL |
---|---|---|---|
usaco.guide | eforward5.registrar-servers.com | 20 | 1800 |
usaco.guide | eforward4.registrar-servers.com | 15 | 1800 |
usaco.guide | eforward1.registrar-servers.com | 10 | 1800 |
usaco.guide | eforward2.registrar-servers.com | 10 | 1800 |
usaco.guide | eforward3.registrar-servers.com | 10 | 1800 |
Host | NS Record | TTL |
---|---|---|
usaco.guide | dns1.registrar-servers.com | 1800 |
usaco.guide | dns2.registrar-servers.com | 1800 |
Host | TXT Record | TTL |
---|---|---|
usaco.guide | google-site-verification=EediNHStqrEG4BOEkCBuSkDYk9yJkFbAeI_JjBl5bOc | 60 |
usaco.guide | v=spf1 include:spf.efwd.registrar-servers.com ~all | 1800 |
dns1.registrar-servers.com
TTL: 3601
Email address: hostmaster.registrar-servers.com
Serial: 1599427976
Refresh: 43200
Retry: 3600
Expire: 604800
Minimum: 3601
No data
No data
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