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On August 9, 2020 at 4:05:03 PM UTC, https://mail.yahoo.com/ presented signs of DNS tampering on AS6697 in Belarus. This might mean that https://mail.yahoo.com/ was blocked, but false positives can occur. Please explore the network measurement data below.

Failures

HTTP Experiment
null
DNS Experiment
null
Control
null

DNS Queries

Resolver:
127.0.0.1
Query:
IN A mail.yahoo.com
Engine:
system
Name
Class
TTL
Type
DATA
Answer IP Info
@
IN
CNAME
edge.gycpi.b.yahoodns.net
Unknown AS
@
IN
A
69.147.82.60
Unknown AS
@
IN
A
69.147.82.61
Unknown AS

TCP Connections

69.147.82.61:443: succeeded
69.147.82.60:443: 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"
Content-Length:
11756
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://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 https://video-api.yql.yahoo.com/ https://edgecast-vod.yahoo.net/ https://*.vpg.cdn.yimg.com/ https://media.zenfs.com/ https://assets.video.yahoo.net/ https://ads.adaptv.advertising.com/ https://video.adaptv.advertising.com/;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 https://assets.video.yahoo.net/ https://cdn-ssl.vidible.tv/prod/;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://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://s.yimg.com/rx/ 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-kyCOTLGOa5f7tmkclP353ag7p3lV2wIQxCSDWJFKKIVe8A0D' ;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' blob:;manifest-src https://s.yimg.com/nq/nr/json/
X-OMG-ENV:
norrin-blue--production-bf1-6f5455964b-gcsdp
Set-Cookie:
GUC=AQEBAQFfMYxfOkIhkwTV; Max-Age=31557600; Domain=.yahoo.com; Path=/; Secure
Age:
0
Strict-Transport-Security:
max-age=15552000
Vary:
Accept-Encoding
Server:
ATS
Connection:
keep-alive
ETag:
W/"2dec-A5o2i4IugAH7YoguDtzdQYHgDvk"
Date:
Sun, 09 Aug 2020 18:05:05 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%3F.src%3Dfp&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%3F.src%3Dfp" 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%3F.src%3Dfp" 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>

Resolver

Resolver ASN
AS20473
Resolver IP
207.246.87.132
Resolver Network Name
Choopa, LLC
Measurement UID
01202008090e6d26b6b148932aa521ecc6cade38
Report ID
20200809T161759Z_AS6697_6I3t4ZBhLNGf53b2T9aZC2mvHgyOGT9RuYl0LoFYK3kdGI37im
Platform
windows
Software Name
ooniprobe-desktop (3.0.3)
Measurement Engine
libmeasurement_kit (0.10.11)

Raw Measurement Data

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