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Problem Vault
www.problemvault.com/
A collection of programming competition problems and solutions.

Problemvault.com

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Conversion Technology Metas Server
Problemvault.com is hosted in United States / Houston . Problemvault.com uses HTTPS protocol. Number of used technologies: 6. First technologies: CSS, Html, Html5, Number of used javascripts: 2. First javascripts: User_scripts.min.js, MathJax.js, Number of used analytics tools: 1. First analytics tools: Google Analytics, Its server type is: nginx/1.10.1.

Technologies in use by Problemvault.com

Technology

Number of occurences: 6
  • CSS
  • Html
  • Html5
  • Javascript
  • Php
  • SVG

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Javascripts

Number of occurences: 2
  • user_scripts.min.js
  • MathJax.js

Analytics

Number of occurences: 1
  • Google Analytics

Server Type

  • nginx/1.10.1

Google Analytics ID

  • UA-74346200-1

Conversion rate optimization
visitors Clickable call number Not founded!
visitors Conversion form (contact form, subcriber) Not founded!
visitors Clickable email Not founded!
visitors CTA (call to action) button Founded!
visitors List Not founded!
visitors Image Not founded!
visitors Enhancement Not founded!
visitors Responsive website Founded!
visitors Facebook sharing Not founded!
visitors Google+ sharing Not founded!
visitors Twitter sharing Not founded!
visitors Linkedin sharing Not founded!
visitors Blog on the webiste Not founded!

HTTPS (SSL) - Problemvault.com

SSL certificate

    • name: /OU=Domain Control Validated/OU=PositiveSSL Wildcard/CN=*.ehosts.com
    • subject:
      • OU:
        • 0: Domain Control Validated
        • 1: PositiveSSL Wildcard
      • CN: *.ehosts.com
    • hash: 5ab71e1b
    • issuer:
      • C: GB
      • ST: Greater Manchester
      • L: Salford
      • O: COMODO CA Limited
      • CN: COMODO RSA Domain Validation Secure Server CA
    • version: 2
    • serialNumber: 132025816794625737389379381780356302621
    • validFrom: 150629000000Z
    • validTo: 170628235959Z
    • validFrom_time_t: 1435536000
    • validTo_time_t: 1498694399
    • extensions:
      • authorityKeyIdentifier: keyid:90:AF:6A:3A:94:5A:0B:D8:90:EA:12:56:73:DF:43:B4:3A:28:DA:E7
      • subjectKeyIdentifier: DE:AE:0F:51:DA:57:07:3F:F5:A9:8C:5E:15:E8:46:B3:52:82:65:49
      • keyUsage: Digital Signature, Key Encipherment
      • basicConstraints: CA:FALSE
      • extendedKeyUsage: TLS Web Server Authentication, TLS Web Client Authentication
      • certificatePolicies: Policy: 1.3.6.1.4.1.6449.1.2.2.7 CPS: https://secure.comodo.com/CPS Policy: 2.23.140.1.2.1
      • crlDistributionPoints: Full Name: URI:http://crl.comodoca.com/COMODORSADomainValidationSecureServerCA.crl
      • authorityInfoAccess: CA Issuers - URI:http://crt.comodoca.com/COMODORSADomainValidationSecureServerCA.crt OCSP - URI:http://ocsp.comodoca.com
      • subjectAltName: DNS:*.ehosts.com, DNS:ehosts.com

Meta - Problemvault.com

Number of occurences: 5
  • Name:
    Content:
  • Name: viewport
    Content: width=device-width, initial-scale=1.0
  • Name: description
    Content: A collection of programming competition problems and solutions.
  • Name: author
    Content:
  • Name: keywords
    Content: problem vault programming competition problems coding code solutions competitive

Server / Hosting

  • IP: 108.167.160.53
  • Latitude: 29.83
  • Longitude: -95.47
  • Country: United States
  • City: Houston

Rname

  • ns116.ehosts.com
  • ns115.ehosts.com
  • mail.problemvault.com

Target

  • dnsadmin.e8.ehosts.com

HTTP Header Response

HTTP/1.1 200 OK Server: nginx/1.10.1 Date: Fri, 07 Oct 2016 16:21:18 GMT Content-Type: text/html Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Set-Cookie: tzLogin=eaef84e77362de3f50509701fcf839eb; expires=Fri, 21-Oct-2016 16:21:18 GMT; path=/ X-Cache: MISS from s_wx1202 Transfer-Encoding: chunked Via: 1.1 s_wx1202 (squid/3.5.20) Connection: keep-alive

DNS

host: problemvault.com
  1. class: IN
  2. ttl: 14400
  3. type: A
  4. ip: 108.167.160.53
host: problemvault.com
  1. class: IN
  2. ttl: 86400
  3. type: NS
  4. target: ns116.ehosts.com
host: problemvault.com
  1. class: IN
  2. ttl: 86400
  3. type: NS
  4. target: ns115.ehosts.com
host: problemvault.com
  1. class: IN
  2. ttl: 86400
  3. type: SOA
  4. mname: ns115.ehosts.com
  5. rname: dnsadmin.e8.ehosts.com
  6. serial: 2016082607
  7. refresh: 86400
  8. retry: 7200
  9. expire: 3600000
  10. minimum-ttl: 86400
host: problemvault.com
  1. class: IN
  2. ttl: 14400
  3. type: MX
  4. pri: 0
  5. target: mail.problemvault.com
host: problemvault.com
  1. class: IN
  2. ttl: 14400
  3. type: TXT
  4. txt: v=spf1 a mx include:websitewelcome.com ~all
  5. entries: Array
host: problemvault.com
  1. class: IN
  2. ttl: 14400
  3. type: TXT
  4. txt: v=spf1 +a +mx +ip4:108.167.160.50 ~all
  5. entries: Array

Common Typos/Mistakes

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