Anomaly
https://mail.yahoo.com/
DNS tampering
Unknown
Country
AS0
Network
June 23, 2020, 01:43 AM UTC
Date & Time
Websites
Websites
Web Connectivity Test
Runtime: 2.5s

On June 23, 2020, 01:43 AM UTC, https://mail.yahoo.com/ presented signs of DNS tampering on AS0 in Unknown. This might mean that https://mail.yahoo.com/ was blocked, but [false positives](https://ooni.org/support/faq/#why-do-false-positives-occur) can occur. Please explore the network measurement data below.

Failures

HTTP Experiment
null
DNS Experiment
null
Control
null

DNS Queries

Resolver:
172.83.43.133
Query:
IN A mail.yahoo.com
Engine:
Name
Class
TTL
Type
DATA
@
IN
TTL
CNAME
edge.gycpi.b.yahoodns.net
@
IN
TTL
A
209.73.190.11
@
IN
TTL
A
209.73.190.12

TCP Connections

Connection to 209.73.190.12:443 succeeded.
Connection to 209.73.190.11:443 succeeded.

HTTP Requests

URL
GET https://mail.yahoo.com/
Response Headers
Expect-CT:
max-age=31536000, report-uri="http://csp.yahoo.com/beacon/csp?src=yahoocom-expect-ct-report-only"
X-XSS-Protection:
1; mode=block
X-Content-Type-Options:
nosniff
Content-Security-Policy:
child-src blob:;connect-src 'self' https://*.yimg.com https://*.yahoo.com https://edgecast-vod.yahoo.net/ https://assets.video.yahoo.net/ https://s.yimg.com/nq/ads/mb/native/* https://service.cmp.oath.com https://www.yahoo.com/p.gif https://smetrics.att.com/id https://dpm.demdex.net/id;default-src 'self';font-src https: data:;frame-src https://*.yahoo.com https://*.yimg.com https://*.ymail.com https://6518610.fls.doubleclick.net/ https://6589630.fls.doubleclick.net/ https://8523621.fls.doubleclick.net/ https://delivery.vidible.tv/ https://secure.bannerfarm.ace.advertising.com https://cmp.advertising.com;img-src data: blob: http: https:;media-src blob: https://*.yahoo.com https://*.yimg.com;report-uri https://csp.yahoo.com/beacon/csp?src=mail-norrin;script-src 'self' https://s.yimg.com/nq/nr/ https://s.yimg.com/os/yaft/ https://s.yimg.com/ss/ https://s.yimg.com/aaq/yc/ https://s.yimg.com/rq/darla/ https://fc.yahoo.com/sdarla/ https://e2e.fc.yahoo.com/sdarla/ https://www.yahoo.com/polyfill.min.js https://yep.video.yahoo.com/js/ https://s.yimg.com/rx/ https://www.gstatic.com/cv/js/sender/v1/cast_sender.js https://s.yimg.com/aaq/vzm/ https://cdn-ssl.vidible.tv/prod/player/js/ https://yep.video.yahoo.com/ https://assets.video.yahoo.net/ https://jsapi.login.yahoo.com/w/ https://s.yimg.com/cv/apiv2/partner-portals/att/adobe_analytics/ https://consent.cmp.oath.com/ https://s.yimg.com/oa/ https://s.yimg.com/uc/sf/ https://s.yimg.com/aaq/ 'sha256-lRMQ2lQozgbWLOqNJOrnclJXX6G77pQVIlF8SAI3++I=' 'unsafe-inline' 'unsafe-eval' 'report-sample' 'nonce-Aa79Bv43IulDyey0F18Qna5EcCYM35dic0qcnCWFiSPpwSKX' ;style-src 'self' https://s.yimg.com/nq/nr/ https://s.yimg.com/rx/ https://assets.video.yahoo.net/ https://s.yimg.com/aaq/fp/ 'unsafe-inline';worker-src 'self';manifest-src https://s.yimg.com/nq/nr/json/
X-OMG-ENV:
norrin-blue--production-gq1-6fd7749545-xgtm6
Set-Cookie:
A1=d=AQABBGZp8V4CEB3fnGw-5czVK0nncFQn2kUFEgEBAQG68l77XgAAAAAA_SMAAA&S=AQAAApsmSiYWyKqnlJy5nR1uVeY; Max-Age=31557600; Domain=.yahoo.com; Path=/; SameSite=Lax; Secure; HttpOnly
Age:
0
Strict-Transport-Security:
max-age=15552000
Vary:
Accept-Encoding
Server:
ATS
ETag:
W/"2dc8-xYOoEfsAsTFWGyr1TtjEeIGQfb8"
Date:
Tue, 23 Jun 2020 02:31:02 GMT
X-Frame-Options:
DENY
Referrer-Policy:
origin-when-cross-origin
Content-Type:
text/html; charset=utf-8
Response Body
<!DOCTYPE html><html><head><meta name="viewport" content="width=device-width, initial-scale=1" />
                <title>Yahoo Mail</title>
                <meta name="description" content="Take a trip into an upgraded, more organized inbox. Sign in and start exploring all the free, organizational tools for your email. Check out new themes, send GIFs, find every photo you’ve ever sent or received, and search your account faster than ever." />
                <link rel="shortcut icon" href="https://s.yimg.com/nq/nr/img/favicon_kJCAOFliMOfdwulmDAg-b-Rr1cVzRHU8pkXZ517KhvQ_v1.ico" />
                <link href="https://mail.yahoo.com/?.lang=bg-BG" hreflang="bg-BG" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=bn-BD" hreflang="bn-BD" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=bn-IN" hreflang="bn-IN" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=cs-CZ" hreflang="cs-CZ" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=da-DK" hreflang="da-DK" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=de-AT" hreflang="de-AT" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=de-CH" hreflang="de-CH" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=de-DE-x-aol" hreflang="de-DE-x-aol" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=de-DE" hreflang="de-DE" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=el-GR" hreflang="el-GR" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-035" hreflang="en-035" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-AE" hreflang="en-AE" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-AU" hreflang="en-AU" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-CA-x-aol" hreflang="en-CA-x-aol" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-CA" hreflang="en-CA" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-GB-x-aol" hreflang="en-GB-x-aol" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-GB" hreflang="en-GB" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-IE" hreflang="en-IE" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-IN-x-aol" hreflang="en-IN-x-aol" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-IN" hreflang="en-IN" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-JO" hreflang="en-JO" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-MY" hreflang="en-MY" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-NZ" hreflang="en-NZ" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-PH" hreflang="en-PH" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-SG" hreflang="en-SG" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-US-x-aol" hreflang="en-US-x-aol" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-US" hreflang="en-US" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=en-ZA" hreflang="en-ZA" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=es-AR" hreflang="es-AR" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=es-CL" hreflang="es-CL" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=es-CO" hreflang="es-CO" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=es-ES" hreflang="es-ES" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=es-MX" hreflang="es-MX" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=es-PE" hreflang="es-PE" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=es-US-x-aol" hreflang="es-US-x-aol" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=es-US" hreflang="es-US" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=es-VE" hreflang="es-VE" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=et-EE" hreflang="et-EE" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=fi-FI" hreflang="fi-FI" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=fil-PH" hreflang="fil-PH" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=fr-BE" hreflang="fr-BE" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=fr-CA-x-aol" hreflang="fr-CA-x-aol" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=fr-CA" hreflang="fr-CA" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=fr-CH" hreflang="fr-CH" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=fr-FR-x-aol" hreflang="fr-FR-x-aol" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=fr-FR" hreflang="fr-FR" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=gu-IN" hreflang="gu-IN" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=hi-IN" hreflang="hi-IN" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=hr-HR" hreflang="hr-HR" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=hu-HU" hreflang="hu-HU" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=id-ID" hreflang="id-ID" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=it-CH" hreflang="it-CH" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=it-IT" hreflang="it-IT" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=ja-JP-x-aol" hreflang="ja-JP-x-aol" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=ja-JP" hreflang="ja-JP" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=kn-IN" hreflang="kn-IN" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=ko-KR" hreflang="ko-KR" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=lt-LT" hreflang="lt-LT" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=lv-LV" hreflang="lv-LV" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=ml-IN" hreflang="ml-IN" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=mr-IN" hreflang="mr-IN" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=ms-MY" hreflang="ms-MY" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=nb-NO" hreflang="nb-NO" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=nl-BE" hreflang="nl-BE" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=nl-NL" hreflang="nl-NL" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=pl-PL" hreflang="pl-PL" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=pt-BR-x-aol" hreflang="pt-BR-x-aol" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=pt-BR" hreflang="pt-BR" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=pt-PT" hreflang="pt-PT" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=ro-RO" hreflang="ro-RO" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=ru-RU" hreflang="ru-RU" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=sk-SK" hreflang="sk-SK" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=sl-SI" hreflang="sl-SI" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=sr-Cyrl-RS" hreflang="sr-Cyrl-RS" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=sv-SE" hreflang="sv-SE" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=ta-IN" hreflang="ta-IN" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=te-IN" hreflang="te-IN" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=th-TH" hreflang="th-TH" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=tr-TR" hreflang="tr-TR" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=uk-UA" hreflang="uk-UA" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=vi-VN" hreflang="vi-VN" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=zh-Hans-CN" hreflang="zh-Hans-CN" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=zh-Hant-HK" hreflang="zh-Hant-HK" rel="alternate" /><link href="https://mail.yahoo.com/?.lang=zh-Hant-TW" hreflang="zh-Hant-TW" rel="alternate" />
                <link rel="stylesheet" href="https://s.yimg.com/nq/nr/css/signin_4ngZasu6f_INyp8JkI2YRy0WinjbhL7fizmRuEY7VCQ_v1.css" />
                <!--[if IE]><link rel="stylesheet" href="https://s.yimg.com/nq/nr/css/signin_ie_QtUP8bDIgXPpgPuEPYn5bP1yBvB_3SIOjVGTUkOmTL0_v1.css" /><![endif]--></head><body id="signin-main"><div class="header clearfix"><img src="https://s.yimg.com/nq/nr/img/yahoo_mail_global_english_white_1x_2irxdCmPPid8dWMdybHvLaG3G8C-2YHi2uDczTLQjRQ_v1.png" srcSet="https://s.yimg.com/nq/nr/img/yahoo_mail_global_english_white_2x_A6ncybctetL1Rrnktv0yukBBnRW-U1ioDXOW1MZ8xwg_v1.png 2x" class="logo" alt="Yahoo Mail"/><a href="https://login.yahoo.com/account/create?.src=ym&amp;.lang=en-US&amp;.intl=us&amp;.done=https%3A%2F%2Fmail.yahoo.com%2Fd&amp;authMechanism=primary&amp;specId=yidReg" class="fuji-button-link fuji-button-secondary fuji-button-inverted" data-ylk="mKey:signup_click"><span>Sign up</span></a><a href="https://login.yahoo.com?.src=ym&amp;.lang=en-US&amp;.intl=us&amp;.done=https%3A%2F%2Fmail.yahoo.com%2Fd" class="fuji-button-link fuji-button-text fuji-button-inverted" data-ylk="mKey:signin_click"><span>Sign in</span></a></div><div class="main"><div class="section" id="going-places"><h2 class="upsell-heading" aria-label="Yahoo Mail is going places, come with us."><span aria-hidden="true" class="upsell-heading-text"><span><b>Yahoo Mail</b><b> is <span><strong>going places,</strong></span></b><b> come with us.</b></span></span></h2><p class="sub-headline"><span>Let&#x27;s take a trip into a more organized inbox. We&#x27;ve upgraded your experience.</span></p><a href="https://login.yahoo.com?.src=ym&amp;.lang=en-US&amp;.intl=us&amp;.done=https%3A%2F%2Fmail.yahoo.com%2Fd" class="fuji-button-link fuji-button-primary" data-ylk="mKey:letsgo_click"><span>Let&#x27;s go</span></a><div class="cb-scroller"></div></div><div class="section" id="follow-up"><h2 class="upsell-heading" aria-label="Follow up with your feet up."><span aria-hidden="true" class="upsell-heading-text"><span><strong>Follow up</strong><b>with your</b><b>feet up.</b></span></span></h2><p class="sub-headline"><span>Stay on top of everything with ease. The mobile experience makes life easy to manage wherever you are.</span></p><div class="download"><a href="https://app.appsflyer.com/id577586159?pid=yahoo_admanager_plus_int&amp;c=NorrinLaunch_Mar17&amp;af_sub1=Internal&amp;af_sub2=Mobile_Upsell_YMktg&amp;af_sub3=Landing_Page_Mobile_Upsell&amp;pbd=${POSTBACKDATA}&amp;idfa=${IDFA}" aria-label="Get the Yahoo Mail app in the App Store" class="appstore" data-ylk="mKey:appstore_click"><img aria-hidden="true" src="https://s.yimg.com/wm/bcg/norrin/images/icon-app-store-1.0.1.png"/></a><a href="https://app.appsflyer.com/com.yahoo.mobile.client.android.mail?pid=yahoo_admanager_plus_int&amp;c=NorrinLaunch_Mar17&amp;af_sub1=Internal&amp;af_sub2=Mobile_Upsell_YMktg&amp;af_sub3=Landing_Page_Mobile_Upsell&amp;pbd=${POSTBACKDATA}&amp;dpidsha1=${DPIDSHA1}&amp;idfa=${IDFA}" aria-label="Get the Yahoo Mail Android App through Google Play" data-ylk="mKey:playstore_click"><img aria-hidden="true" src="https://s.yimg.com/wm/bcg/norrin/images/icon-google-app-1.0.2.png"/></a></div></div></div><div class="footer"><ul><li><a href="https://www.verizonmedia.com/policies/us/en/verizonmedia/privacy/adinfo/index.html" rel="nofollow"><span>About our Ads</span></a></li><li><a href="https://www.verizonmedia.com/policies/us/en/verizonmedia/privacy/products/communications/index.html" rel="nofollow"><span>Privacy Policy</span></a></li><li><a href="https://www.verizonmedia.com/policies/us/en/verizonmedia/terms/otos/index.html" rel="nofollow"><span>Terms of Service</span></a></li></ul></div><script src="https://s.yimg.com/ss/rapid-3.42.3.js"></script><script>var rapid = new YAHOO.i13n.Rapid({"spaceid":1197806870,"tracked_mods":["signin-main"],"client_only":1});</script></body></html>

Report ID

20200623T140602Z_AS0_0aolwLxmIAEj9JqWYO4LVwFcvqeM6C8NZY7PdKwq6TtePtryWn

Platform

macos

OONI Probe version

2.3.0

Measurement Kit version

none

Raw Measurement Data