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。
Server IP address resolved: Yes
Http response code: 200
Response time: 0.96 sec.
Last Checked: 02/04/2023
Over the time teratail.com has been ranked as high as 60,033 in the world, while most of its traffic comes from Japan, where it reached as high as 471 position.
Teratail.com receives about 42,506 unique visitors and 83,737 pageviews per day. The estimated value of teratail.com is 1,103,760 USD. Each unique visitor makes about 1.97 pageviews on average.
Teratail.com is registered under .COM top-level domain. Check other websites in .COM zone.
At the time of the last check (November 28, 2019) teratail.com has an expired wildcard SSL certificate issued by DigiCert Inc (expired on October 19, 2020). Check other websites using SSL certificates issued by DigiCert Inc.
According to Google Safe Browsing, Google Safe Search and Symantec teratail.com is quite a safe domain.
Mobile-Friendly test indicates that teratail.com is well optimized for mobile and tablet devices, however website page loading time could be improved.
Audience Geography. Where are teratail.com visitors located?
| Country | Rank |
|---|---|
 Japan JP | 471 |
| Country | Percent of Pageviews |
|---|---|
| Japan JP | 99.1% |
| Other | 0.9% |
| Country | Percent of Visitors |
|---|---|
| Japan JP | 98.4% |
| Other | 1.6% |
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?
| 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% |
| 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% |
| Period | Global Rank | Global Rank Delta |
|---|---|---|
| past 3 months | 8199 | -386 |
| past month | 7620 | -1507 |
| past week | 9024 | 2350 |
| yesterday | 8139 | -16778 |
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.
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.
"teratail.com" is not a phishing page.
"teratail.com" does not install unwanted software.
"teratail.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.
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 | DigiCert Inc |
| Issuer | RapidSSL RSA CA 2018 |
| Algorithm | RSA-SHA256 |
| Valid form | 08/07/2018 |
| Expiration | 10/19/2020 |
| Signed | Certificate is not self signed |
| Additional Domains | *.teratail.com teratail.com |
Not Found
ASN ID: 16509
ASN Title: AMAZON-02 - Amazon.com, Inc., US
Last Update: 10/04/2023
#
# 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: 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.
#
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: 2020-08-26T18:16:18Z
Creation Date: 2013-10-09T01:13:12Z
Registry Expiry Date: 2021-10-09T01:13:12Z
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-CLOUD-A1.GOOGLEDOMAINS.COM
Name Server: NS-CLOUD-A2.GOOGLEDOMAINS.COM
Name Server: NS-CLOUD-A3.GOOGLEDOMAINS.COM
Name Server: NS-CLOUD-A4.GOOGLEDOMAINS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-05-03T05:31:34Z
| Host | A Record | TTL |
|---|
| Host | MX Record | Priority | TTL |
|---|
| Host | NS Record | TTL |
|---|
| Host | TXT Record | TTL |
|---|
Last tested: 11/07/2016
| Total Resources | 154 |
| Number of Hosts | 40 |
| Static Resources | 74 |
| JavaScript Resources | 29 |
| CSS Resources | 3 |
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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