Css-lecture.com CSS Lecture

CSSリファレンスに関する記事を中心に、jQuery、(X)HTML、Movable Typeなどの使い方などを紹介、デモページ付きの解説。それ以外にもWebサイト制作に関する役立つツールや情報を掲載しています。

Css-lecture.com Overview

Css-lecture.com ranking shows that the page is at position 636,726 over the world, while the bulk of its audience is from Japan, where it ranks 35,936.

It is beneficial to css-lecture.com that their hosting company AS-26496-GO-DADDY-COM-LLC - GoDaddy.com, LLC, US servers are located in Japan, as that reduces page load time for the majority of their users. See the list of other webpages hosted on AS-26496-GO-DADDY-COM-LLC - GoDaddy.com, LLC, US servers.

In terms of rank-to-traffic ratio, css-lecture.com has 1,162 unique users per day, viewing 1,161 pages. The rank based value of css-lecture.com is 9,461 USD. Every user makes 1.08 pageviews on average.

Css-lecture.com boasts a link base consisting of 309 referring domains and 378 external backlinks, as revealed by the data obtained from web network scanning.

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

According the last verification test in April 29, 2021, css-lecture.com has an expired wildcard SSL certificate issued by GlobalSign nv-sa (expired on June 23, 2021). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by GlobalSign nv-sa.

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

According the Mobile-Friendly test by Google css-lecture.com is nice optimized for mobile devices and tablets, however the webpage speed could be improved.

Css-lecture.com Rank Summary

Global Rank

636,726

Average Load Time

0.63sec

Links In Count

202

Website Value

$8,760

Audience Geography. Where are css-lecture.com visitors located?

Country	Visitors
Japan JP	100%

Country	Pageviews
Japan JP	100%

Country	Rank
Japan JP	35936

Where do visitors go on css-lecture.com?

Subdomain	Pageviews
css-lecture.com	100%

Subdomain	Pageviews per User
css-lecture.com	1

Subdomain	Reach
css-lecture.com	100%

How popular is css-lecture.com?

Period	Global Rank	Global Rank Delta
past 3 months	636726	360868
past month	403279	-541540
past week	658862	177145

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	944851	503947	3	-63.962%	1	8%
30	650649	-609321	5	200%	1	-22.67%
7	1032595	446620	3	-55.011%	1	-50%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	544596	316402	82	-66.7%
30	334214	-533009	2	200%
7	535916	43344	1	-10.02%

Css-lecture.com Website Safety

Overview

Last Updated: 04/16/2025

Overall result - css-lecture.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: 03/22/2025

css-lecture.com is safe.

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

Google Safe Search

Last Updated: 10/17/2016

css-lecture.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

css-lecture.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: 02/22/2021

css-lecture.com is safe.

McAfee assesses css-lecture.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 css-lecture.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 04/16/2025

css-lecture.com child safety is unknown.

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

SSL Information

SSL Checker Tool

Domain	*.heteml.jp
Issuer Organization	GlobalSign nv-sa
Issuer	AlphaSSL CA - SHA256 - G2
Algorithm	RSA-SHA256
Valid form	04/24/2019
Expiration	06/23/2021
Signed	Certificate is not self signed
Additional Domains	*.heteml.jp heteml.jp

Css-lecture.com Rank History

Alexa Rank shows how popular css-lecture.com is in comparison with other sites. The most popular site has Alexa Rank equals 1. If css-lecture.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 css-lecture.com and pageviews on css-lecture.com over the past 3 months.

Css-lecture.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 26496

ASN Title: AS-26496-GO-DADDY-COM-LLC - GoDaddy.com, LLC, US

Last Update: 04/13/2025

#
# 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: 26496
ASName: AS-26496-GO-DADDY-COM-LLC
ASHandle: AS26496
RegDate: 2002-10-01
Updated: 2012-02-24
Ref: https://rdap.arin.net/registry/autnum/26496

OrgName: GoDaddy.com, LLC
OrgId: GODAD
Address: 14455 N Hayden Road
Address: Suite 226
City: Scottsdale
StateProv: AZ
PostalCode: 85260
Country: US
RegDate: 2007-06-01
Updated: 2014-09-10
Comment: Please send abuse complaints to abuse@godaddy.com
Ref: https://rdap.arin.net/registry/entity/GODAD

OrgNOCHandle: NOC124-ARIN
OrgNOCName: Network Operations Center
OrgNOCPhone: +1-480-505-8809
OrgNOCEmail: noc@godaddy.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC124-ARIN

OrgAbuseHandle: ABUSE51-ARIN
OrgAbuseName: Abuse Department
OrgAbusePhone: +1-480-624-2505
OrgAbuseEmail: abuse@godaddy.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE51-ARIN

OrgTechHandle: NOC124-ARIN
OrgTechName: Network Operations Center
OrgTechPhone: +1-480-505-8809
OrgTechEmail: noc@godaddy.com
OrgTechRef: https://rdap.arin.net/registry/entity/NOC124-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.
#

Css-lecture.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: CSS-LECTURE.COM
Registry Domain ID: 1388082960_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2024-03-17T02:41:39Z
Creation Date: 2008-01-26T12:30:24Z
Registry Expiry Date: 2025-01-26T12:30:24Z
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: NS25.DOMAINCONTROL.COM
Name Server: NS26.DOMAINCONTROL.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-20T20:05:27Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
css-lecture.com	157.7.188.221	86400

Host	MX Record	Priority	TTL
css-lecture.com	mail3.heteml.jp	10	86400

Host	NS Record	TTL
css-lecture.com	dns0.heteml.jp	259200
css-lecture.com	dns1.heteml.jp	259200

Host	TXT Record	TTL
css-lecture.com	v=spf1 include:_spf.heteml.jp ~all	3600

dns0.heteml.jp
TTL: 2560
Email address: hostmaster.css-lecture.com
Serial: 1566289934
Refresh: 16384
Retry: 2048
Expire: 1048576
Minimum: 2560

Css-lecture.com HTML Check

HTML Validation Tool

Errors

Bad value “screen, tv, projection” for attribute “media” on element “link”: Deprecated media type “tv”. For guidance, see the Media Types section in the current Media Queries specification.

Attribute “value” not allowed on element “input” at this point.

Bad value “2011-04-05:13:44” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2011-04-04:15:28” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2011-04-01:11:26” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2011-03-31:00:00” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2010-12-01:11:32” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Warnings

Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

Css-lecture.com Desktop Performance

Last tested: 12/09/2016

Desktop Speed

43%

Optimize images

Leverage browser caching

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

Minify JavaScript

Minify CSS

Desktop Resource Breakdown

Total Resources	112
Number of Hosts	19
Static Resources	83
JavaScript Resources	23
CSS Resources	6

Css-lecture.com Mobile Insights

Last tested: 12/09/2016

Mobile Usability

62%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Size content to viewport

Mobile Speed

36%

Optimize images

Leverage browser caching

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

Minify JavaScript

Minify CSS

Mobile Resource Breakdown

Total Resources	110
Number of Hosts	19
Static Resources	80
JavaScript Resources	20
CSS Resources	5

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Css-lecture.com CSS Lecture

CSSリファレンスに関する記事を中心に、jQuery、(X)HTML、Movable Typeなどの使い方などを紹介、デモページ付きの解説。それ以外にもWebサイト制作に関する役立つツールや情報を掲載しています。

Css-lecture.com Overview

Css-lecture.com Rank Summary

Css-lecture.com Website Safety

Css-lecture.com Rank History

Css-lecture.com Hosting Information

Css-lecture.com Domain Registration and Settings

Css-lecture.com HTML Check

Css-lecture.com Desktop Performance

Css-lecture.com Mobile Insights

Css-lecture.com Similar Audits

Css-lecture.com Common Typos