Teratail.com teratail【テラテイル】｜ITエンジニア特化型Q&Aサイト
teratail（テラテイル）はプログラミングに特化したQ&Aサイトです。実現したい機能や作業中に発生したエラーについて質問すると、他のエンジニアから回答を得られます。
Teratail.com Overview
Teratail.com is a Japanese Q&A website focused on programming, where developers can ask questions about a specific functionality or problem they are encountering while working on a project, and receive answers from other programmers. The website has a clean and minimalist design that makes it easy for users to navigate and search for content. With 42 out of 100 in the PageSpeed Insights score, it takes a bit longer than expected to load the website, but we can attribute some of this slowness to the sheer number of users and pageviews it receives every day.
The website is family-friendly. It does not contain any adult content or offensive materials, and users are expected to abide by the community guidelines when asking or answering questions. Teratail.com employs a strict moderation system to ensure that its content remains relevant and helpful to its users and that any malicious or spammy content is removed promptly.
On average, the website receives 42,506 unique users per day, and its total pageviews are around 83,736.82. These numbers highlight the popularity of teratail.com, demonstrating that it is a vital part of the developer community in Japan. The website's value is calculated at around 1,103,760 US dollars. It's a significant indication of the website's importance in the world of IT.
Amazon.com, Inc hosts the website, which ensures that it is secure and reliable. Teratail.com has an SSL certificate issued by DigiCert Inc., ensuring that user data and information are safe and protected.
In conclusion, teratail.com is a well-organized and highly reputable Q&A website for developers in Japan. It offers a platform where programmers can quickly obtain solutions to their problems related to programming and development. While there is still room for improvement in terms of website speed, overall, the site provides an excellent user experience and is a valuable resource for anyone in the IT industry in Japan.
Teratail.com Rank Summary
Audience Geography. Where are teratail.com visitors located?
| Country | Visitors |
|---|---|
 Japan JP | 98.4% |
| Other | 1.6% |
| Country | Pageviews |
|---|---|
| Japan JP | 99.1% |
| Other | 0.9% |
| Country | Rank |
|---|---|
| Japan JP | 471 |
Where do visitors go on teratail.com?
| Subdomain | Pageviews |
|---|---|
| teratail.com | 99.95% |
| other | 0.05% |
| Subdomain | Pageviews per User |
|---|---|
| teratail.com | 2.1 |
| Subdomain | Reach |
|---|---|
| teratail.com | 99.89% |
How popular is teratail.com?
| Period | Global Rank | Global Rank Delta |
|---|---|---|
| past 3 months | 8199 | -386 |
| past month | 7620 | -1507 |
| past week | 9024 | 2350 |
| yesterday | 8139 | -16778 |
| Days | Pageviews Rank | Pageviews Rank Delta | Pageviews per Million | Pageviews per Million Delta | Pageviews per User | Pageviews per User Delta |
|---|---|---|---|---|---|---|
| 90 | 12242 | -127 | 604 | -0.932% | 1.97 | -3.43% |
| 30 | 10970 | -3686 | 685 | 36% | 2.1 | 20% |
| 7 | 14887 | 6465 | 51 | -43.91% | 1.7 | -35.36% |
| 1 | 13220 | -24095 | 59 | 200% | 1.9 | 4% |
| Days | Reach Rank | Reach Rank Delta | Reach per Million | Reach per Million Delta |
|---|---|---|---|---|
| 90 | 7328 | -443 | 113 | 2% |
| 30 | 6904 | -922 | 120 | 10% |
| 7 | 7609 | 1029 | 110 | -13.11% |
| 1 | 7102 | -15581 | 120 | 200% |
Teratail.com Website Safety
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 ConnectSafe evaluates teratail.com for any unsafe and insecure content. The results are critical for families with young children.
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.
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.
McAfee assesses teratail.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 teratail.com for mature or inappropriate content, only security checks are evaluated.
The WOT calculates reputation of the teratail.com. This reputation system receives ratings from users and information from third-party sources, assesses the teratail.com for safety features and confirms, whether teratail.com is suitable for children.
| Domain | teratail.com |
| Issuer Organization | Amazon |
| Issuer | Amazon RSA 2048 M02 |
| Algorithm | RSA-SHA256 |
| Valid form | 11/23/2023 |
| Expiration | 12/22/2024 |
| Signed | Certificate is not self signed |
| Additional Domains |
teratail.com |
Teratail.com Rank History
Alexa Rank shows how popular teratail.com is in comparison with other sites. The most popular site has Alexa Rank equals 1. If teratail.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 teratail.com and pageviews on teratail.com over the past 3 months.
Teratail.com Hosting Information
ASN ID: 16509
ASN Title: AMAZON-02 - Amazon.com, Inc., USLast Update: 07/19/2024
#
# 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.
#
Teratail.com Domain Registration and Settings
Domain Name: TERATAIL.COM
Registry Domain ID: 1830422028_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.jprs.jp
Registrar URL: http://jprs.jp/registrar/
Updated Date: 2024-08-27T18:15:03Z
Creation Date: 2013-10-09T01:13:12Z
Registry Expiry Date: 2025-10-09T01:13:12Z
Registrar: Japan Registry Services Co., Ltd.
Registrar IANA ID: 1485
Registrar Abuse Contact Email: gtld-abuse@jprs.jp
Registrar Abuse Contact Phone: +81.352158457
Domain Status: ok https://icann.org/epp#ok
Name Server: NS-1043.AWSDNS-02.ORG
Name Server: NS-1877.AWSDNS-42.CO.UK
Name Server: NS-7.AWSDNS-00.COM
Name Server: NS-872.AWSDNS-45.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-20T18:03:39Z
| Host | A Record | TTL |
|---|
| Host | MX Record | Priority | TTL |
|---|
| Host | NS Record | TTL |
|---|
| Host | TXT Record | TTL |
|---|
Teratail.com HTML Check
Teratail.com Desktop Performance
Last tested: 11/07/2016
| Total Resources | 154 |
| Number of Hosts | 40 |
| Static Resources | 74 |
| JavaScript Resources | 29 |
| CSS Resources | 3 |
Teratail.com Mobile Insights
Last tested: 11/07/2016
| Total Resources | 123 |
| Number of Hosts | 36 |
| Static Resources | 39 |
| JavaScript Resources | 25 |
| CSS Resources | 8 |
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