Openmiddle.com Open Middle - Challenging math problems worth solving

CHALLENGING MATH PROBLEMS WORTH SOLVING DOWNLOAD OUR FAVORITE PROBLEMS FROM EVERY GRADE LEVEL Get Our Favorite Problems Take The Online Workshop WANT ...

Openmiddle.com Overview

Openmiddle.com ranking shows that the page is at position 292,413 over the world, while the bulk of its audience is from United States, where it ranks 90,577.

In terms of rank-to-traffic ratio, openmiddle.com has 713 unique users per day, viewing 2,423 pages. The rank based value of openmiddle.com is 42,616 USD. Every user makes 3.64 pageviews on average.

Openmiddle.com boasts a link base consisting of 293 referring domains and 353 external backlinks, as revealed by the data obtained from web network scanning.

Openmiddle.com top-level domain belongs to .COM domain zone. Check other webpages in .COM zone.

According the last verification test in September 03, 2024, openmiddle.com has a valid and up-to-date SSL certificate issued by Let's Encrypt , certificate expiration date: November 14, 2024. Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Let's Encrypt.

Based on data from Google Safe Browsing, Google Safe Search and Symantec openmiddle.com is a fairly safe domain.

According the Mobile-Friendly test by Google openmiddle.com is nice optimized for mobile devices and tablets.

Openmiddle.com Rank Summary

Global Rank

292,413

Average Load Time

1.11sec

Links In Count

131

Website Value

$39,459

Audience Geography. Where are openmiddle.com visitors located?

Country	Visitors
United States US	89.8%
Other	10.2%

Country	Pageviews
United States US	95.1%
Other	5%

Country	Rank
United States US	90577

Where do visitors go on openmiddle.com?

Subdomain	Pageviews
openmiddle.com	100%

Subdomain	Pageviews per User
openmiddle.com	3.2

Subdomain	Reach
openmiddle.com	100%

How popular is openmiddle.com?

Period	Global Rank	Global Rank Delta
past 3 months	292413	5621
past month	394434	84313

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	288214	54916	15	-25.93%	3.4	-28.18%
30	385982	108710	1	-37.18%	3.2	-19.4%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	317132	-18417	17	3%
30	432133	77442	11	-21.94%

Openmiddle.com Website Safety

Overview

Last Updated: 11/11/2024

Overall result - openmiddle.com is safe.

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.

Norton Connect Safe

Last Updated: 03/31/2024

openmiddle.com is safe.

Norton ConnectSafe evaluates openmiddle.com for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 12/22/2016

openmiddle.com is safe.

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.

Google Safe Browsing

Last Updated: 01/09/2019

openmiddle.com is safe.
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.

Site Advisor

Last Updated: 03/01/2021

openmiddle.com is safe.

McAfee assesses openmiddle.com 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 openmiddle.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 11/11/2024

openmiddle.com child safety is unknown.

The WOT calculates reputation of the openmiddle.com. This reputation system receives ratings from users and information from third-party sources, assesses the openmiddle.com for safety features and confirms, whether openmiddle.com is suitable for children.

SSL Information

SSL Checker Tool

Domain	openmiddle.com
Issuer Organization	Let's Encrypt
Issuer	R10
Algorithm	RSA-SHA256
Valid form	08/16/2024
Expiration	11/14/2024
Signed	Certificate is not self signed
Additional Domains	openmiddle.com

Openmiddle.com Rank History

Alexa Rank shows how popular openmiddle.com is in comparison with other sites. The most popular site has Alexa Rank equals 1. If openmiddle.com has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to openmiddle.com and pageviews on openmiddle.com over the past 3 months.

Openmiddle.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 7393

ASN Title: CYBERCON - CYBERCON, INC., US

Last Update: 03/08/2024

#
# 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: 7393
ASName: CYBERCON
ASHandle: AS7393
RegDate: 1996-12-02
Updated: 2011-06-23
Comment: http://www.cybercon.com
Comment: Standard NOC hours: 24/7/365 CDT
Ref: https://rdap.arin.net/registry/autnum/7393

OrgName: CYBERCON, INC.
OrgId: CBCN
Address: 210 N. Tucker Blvd.
Address: Suite 700
City: Saint Louis
StateProv: MO
PostalCode: 63101
Country: US
RegDate: 1996-12-02
Updated: 2016-07-10
Ref: https://rdap.arin.net/registry/entity/CBCN

OrgTechHandle: NOC344-ARIN
OrgTechName: Network Operations Center
OrgTechPhone: +1-314-621-9991
OrgTechEmail: noc@cybercon.com
OrgTechRef: https://rdap.arin.net/registry/entity/NOC344-ARIN

OrgAbuseHandle: ABUSE378-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-314-621-9991
OrgAbuseEmail: abuse@cybercon.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE378-ARIN

RTechHandle: JZC-ARIN
RTechName: Chen, Joshua
RTechPhone: +1-314-241-1777
RTechEmail: noc@cybercon.com
RTechRef: https://rdap.arin.net/registry/entity/JZC-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.
#

Openmiddle.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: OPENMIDDLE.COM
Registry Domain ID: 1836005031_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2018-10-16T13:11:29Z
Creation Date: 2013-11-19T05:32:25Z
Registry Expiry Date: 2027-11-19T05:32:25Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: 480-624-2505
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: NS49.DOMAINCONTROL.COM
Name Server: NS50.DOMAINCONTROL.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-08-16T22:49:06Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Openmiddle.com HTML Check

HTML Validation Tool

Errors

Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.

Bad start tag in “img” in “head”.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Stray end tag “noscript”.

Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)

Stray end tag “head”.

Start tag “body” seen but an element of the same type was already open.

Cannot recover after last error. Any further errors will be ignored.

Openmiddle.com Desktop Performance

Last tested: 02/09/2019

Desktop Speed

78%

Leverage browser caching

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Reduce server response time

Minify CSS

Optimize images

Minify JavaScript

Desktop Resource Breakdown

Total Resources	64
Number of Hosts	16
Static Resources	46
JavaScript Resources	28
CSS Resources	9

Openmiddle.com Mobile Insights

Last tested: 02/09/2019

Mobile Usability

96%

Size tap targets appropriately

Mobile Speed

66%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Reduce server response time

Optimize images

Minify CSS

Minify JavaScript

Mobile Resource Breakdown

Total Resources	64
Number of Hosts	16
Static Resources	46
JavaScript Resources	28
CSS Resources	9

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Openmiddle.com Open Middle - Challenging math problems worth solving

CHALLENGING MATH PROBLEMS WORTH SOLVING DOWNLOAD OUR FAVORITE PROBLEMS FROM EVERY GRADE LEVEL Get Our Favorite Problems Take The Online Workshop WANT ...

Openmiddle.com Overview

Openmiddle.com Rank Summary

Openmiddle.com Website Safety

Openmiddle.com Rank History

Openmiddle.com Hosting Information

Openmiddle.com Domain Registration and Settings

Openmiddle.com HTML Check

Openmiddle.com Desktop Performance

Openmiddle.com Mobile Insights

Openmiddle.com Similar Audits

Openmiddle.com Common Typos