Alvinalexander.com Scala, Java, Unix, MacOS tutorials (page 1) | alvinalexander.com

Free Scala, Java, Unix, MacOS tutorials (page 1)

Online Status
Offline

Server IP address resolved: No
Http response code: None
Last Checked: 01/20/2023

Over the time alvinalexander.com has been ranked as high as 39,269 in the world, while most of its traffic comes from United States, where it reached as high as 9,943 position.

Alvinalexander.com receives about 31,941 unique visitors and 39,926 pageviews per day. The estimated value of alvinalexander.com is 700,800 USD. Each unique visitor makes about 1.25 pageviews on average.

Alvinalexander.com is registered under .COM top-level domain. Check other websites in .COM zone.

At the time of the last check (November 27, 2019) alvinalexander.com has an expired SSL certificate issued by Let's Encrypt (expired on January 31, 2020). Check other websites using SSL certificates issued by Let's Encrypt.

According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust alvinalexander.com is quite a safe domain.

Mobile-Friendly test indicates that alvinalexander.com is well optimized for mobile and tablet devices.


Global Rank
17,333
Average Load Time
1.32sec
Links In Count
429
Website Value
$700,800

Overview
Last Updated: 04/26/2024
Overall result - "alvinalexander.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: 03/21/2024
alvinalexander.com is safe.

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

Google Safe Search
Last Updated: 10/12/2016
alvinalexander.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
Malware not found at "alvinalexander.com".
"alvinalexander.com" is not a phishing page.
"alvinalexander.com" does not install unwanted software.
"alvinalexander.com" does not contain harmfull applications.
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: 02/22/2021
alvinalexander.com is safe.

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

Web of Trust
Last Updated: 01/09/2019
alvinalexander.com child safety isvery good.

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

SSL Information
Domain alvinalexander.com
Issuer OrganizationLet's Encrypt
Issuer Let's Encrypt Authority X3
Algorithm RSA-SHA256
Valid form 11/02/2019
Expiration 01/31/2020
SignedCertificate is not self signed
Additional Domains alvinalexander.com
Server Location
Fremont
California
United States
ASN Information

ASN ID: 63949
ASN Title: LINODE-AP Linode, LLC, US

Last Update: 10/02/2023

#
# 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: 63488 - 64197
ASName: IANA-RSVD
ASHandle: AS63488
RegDate: 2013-06-07
Updated: 2013-06-07
Ref: https://rdap.arin.net/registry/autnum/63488


OrgName: Internet Assigned Numbers Authority
OrgId: IANA
Address: 12025 Waterfront Drive
Address: Suite 300
City: Los Angeles
StateProv: CA
PostalCode: 90292
Country: US
RegDate:
Updated: 2012-08-31
Ref: https://rdap.arin.net/registry/entity/IANA

OrgAbuseHandle: IANA-IP-ARIN
OrgAbuseName: ICANN
OrgAbusePhone: +1-310-301-5820
OrgAbuseEmail: abuse@iana.org
OrgAbuseRef: https://rdap.arin.net/registry/entity/IANA-IP-ARIN

OrgTechHandle: IANA-IP-ARIN
OrgTechName: ICANN
OrgTechPhone: +1-310-301-5820
OrgTechEmail: abuse@iana.org
OrgTechRef: https://rdap.arin.net/registry/entity/IANA-IP-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.
#

WHOIS

Domain Name: ALVINALEXANDER.COM
Registry Domain ID: 1285585710_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2020-10-20T18:08:25Z
Creation Date: 2007-10-19T17:00:34Z
Registry Expiry Date: 2021-10-19T17:00:34Z
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: NS55.DOMAINCONTROL.COM
Name Server: NS56.DOMAINCONTROL.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-04-25T07:12:28Z

DNS Records
HostA RecordTTL
alvinalexander.com173.230.141.1513600
HostMX RecordPriorityTTL
alvinalexander.comaspmx.l.google.com13600
alvinalexander.comalt1.aspmx.l.google.com53600
alvinalexander.comalt2.aspmx.l.google.com53600
alvinalexander.comaspmx2.googlemail.com103600
alvinalexander.comaspmx3.googlemail.com103600
HostNS RecordTTL
alvinalexander.comns56.domaincontrol.com3600
alvinalexander.comns55.domaincontrol.com3600
HostTXT RecordTTL
alvinalexander.comgoogle-site-verification=neUFkxXSbVxnSQw263TbGGvhy1ya3j6T3eiEsEBxMU03600
alvinalexander.comv=spf1 include:_spf.google.com ~all3600

ns55.domaincontrol.com
TTL: 3600
Email address: dns.jomax.net
Serial: 2017012300
Refresh: 28800
Retry: 7200
Expire: 604800
Minimum: 3600

Errors
Warnings

Last tested: 12/06/2019

Desktop
Desktop Speed
83%
Desktop Resource Breakdown
Total Resources46
Number of Hosts6
Static Resources23
JavaScript Resources11
CSS Resources5

Last tested: 12/06/2019

Mobile
Mobile Usability
96%
Mobile Speed
69%
Mobile Resource Breakdown
Total Resources224
Number of Hosts33
Static Resources53
JavaScript Resources24
CSS Resources7
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