Share on Facebook or Twitter
Websites
Websites
Runtime: 19.9s
On April 1, 2025 at 9:15:37 AM UTC, https://external.xx.fbcdn.net/robots.txt was accessible when tested on AS131584 in Taiwan.
Failures
HTTP Experiment
null
DNS Experiment
null
Control
null
DNS Queries
Resolver:
74.125.186.213
Query:
IN A external.xx.fbcdn.net
Engine:
system
NameClassTTLTypeDATAAnswer IP Info
@IN A31.13.87.5AS32934 (Facebook, Inc.)
Query:
IN AAAA external.xx.fbcdn.net
Engine:
system
NameClassTTLTypeDATAAnswer IP Info
@IN AAAA2a03:2880:f017:4:face:b00c:0:1AS32934 (Facebook, Inc.)
TCP Connections
2a03:2880:f017:4:face:b00c:0:1:443: failed (network_unreachable)
31.13.87.5:443: failed (generic_timeout_error)
HTTP Requests
URL
GET https://external.xx.fbcdn.net/robots.txt
Response Headers
Accept-Ranges:
bytes
Access-Control-Allow-Origin:
*
Alt-Svc:
h3=":443"; ma=86400
Cache-Control:
private, no-cache, no-store, must-revalidate
Content-Security-Policy:
default-src blob: 'self';script-src *.facebook.com *.fbcdn.net *.facebook.net 127.0.0.1:* blob: data: 'self' https://*.google-analytics.com *.google.com;style-src 'unsafe-inline';connect-src *.facebook.com facebook.com *.fbcdn.net *.facebook.net wss://*.facebook.com:* wss://*.whatsapp.com:* wss://*.fbcdn.net attachment.fbsbx.com ws://localhost:* blob: *.cdninstagram.com 'self' https://*.google-analytics.com;font-src data: blob: 'self';img-src data: blob: 'self' https://*.google-analytics.com;media-src data: blob: 'self';child-src data: blob: 'self';frame-src data: blob: 'self';manifest-src data: blob: 'self';object-src data: blob: 'self';worker-src data: blob: 'self';block-all-mixed-content;upgrade-insecure-requests;require-trusted-types-for 'script';
Content-Type:
text/plain; charset=utf-8
Cross-Origin-Embedder-Policy-Report-Only:
require-corp;report-to="coep_report"
Cross-Origin-Opener-Policy:
same-origin-allow-popups;report-to="coop_report"
Cross-Origin-Resource-Policy:
cross-origin
Date:
Tue, 01 Apr 2025 09:15:37 GMT
Document-Policy:
force-load-at-top
Expires:
Tue, 01 Apr 2025 15:35:21 +0000
Origin-Agent-Cluster:
?1
Permissions-Policy:
accelerometer=(), attribution-reporting=(), autoplay=(), bluetooth=(), camera=(), ch-device-memory=(), ch-downlink=(), ch-dpr=(), ch-ect=(), ch-rtt=(), ch-save-data=(), ch-ua-arch=(), ch-ua-bitness=(), ch-viewport-height=(), ch-viewport-width=(), ch-width=(), clipboard-read=(), clipboard-write=(), compute-pressure=(), display-capture=(), encrypted-media=(), fullscreen=(self), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), midi=(), otp-credentials=(), payment=(), picture-in-picture=(), private-state-token-issuance=(), publickey-credentials-get=(), screen-wake-lock=(), serial=(), shared-storage=(), shared-storage-select-url=(), private-state-token-redemption=(), usb=(), unload=(self), window-management=(), xr-spatial-tracking=();report-to="permissions_policy"
Pragma:
no-cache
Report-To:
{"max_age":2592000,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/coop\/?minimize=0"}],"group":"coop_report","include_subdomains":true}, {"max_age":86400,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/coep\/?minimize=0"}],"group":"coep_report"}, {"max_age":21600,"endpoints":[{"url":"https:\/\/www.xx.facebook.com\/ajax\/browser_error_reports\/"}],"group":"permissions_policy"}
Reporting-Endpoints:
coop_report="https://www.facebook.com/browser_reporting/coop/?minimize=0", coep_report="https://www.facebook.com/browser_reporting/coep/?minimize=0", permissions_policy="https://www.xx.facebook.com/ajax/browser_error_reports/"
Strict-Transport-Security:
max-age=31536000; preload; includeSubDomains
Timing-Allow-Origin:
*
Vary:
Accept-Encoding
X-Content-Type-Options:
nosniff
X-Fb-Connection-Quality:
EXCELLENT; q=0.9, rtt=16, rtx=0, c=13, mss=1380, tbw=3360, tp=-1, tpl=-1, uplat=0, ullat=-1
X-Fb-Debug:
wnVeVHdLTljE7vtoexorHYBeGqHE/PMEEz0vWJy/uBPHwPSJwHG9f1LZM6oQeWw/xQtxKrKoQnwgU1wmXGQvRw==
X-Frame-Options:
DENY
X-Xss-Protection:
0
Response Body
# Notice: Collection of data on Facebook through automated means is # prohibited unless you have express written permission from Facebook # and may only be conducted for the limited purpose contained in said # permission. # All authorized user-agents listed on this page must comply with Meta’s # Automated Data Collection Terms available at: # https://www.facebook.com/legal/automated_data_collection_terms User-agent: Amazonbot Disallow: / User-agent: Applebot-Extended Disallow: / User-agent: ClaudeBot Disallow: / User-agent: Google-Extended Disallow: / User-agent: GPTBot Disallow: / User-agent: PerplexityBot Disallow: / User-agent: PetalBot Disallow: / User-agent: uptimerobot Disallow: / User-agent: viberbot Disallow: / User-agent: YaK Disallow: / User-agent: Yandex Disallow: / User-agent: Applebot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Bingbot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Discordbot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: DuckDuckBot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: facebookexternalhit Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Googlebot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Googlebot-Image Disallow: / Disallow: /map_tile.php Disallow: /static_map.php Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Googlebot-Video Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Googlebot-News Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Google-InspectionTool Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: LinkedInBot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: msnbot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Naverbot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Pinterestbot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Screaming Frog SEO Spider Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: seznambot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Slurp Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: teoma Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: TelegramBot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Twitterbot Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: Yeti Disallow: / Allow: /map_tile.php Allow: /security/hsts-pixel.gif Allow: /static_map.php User-agent: * Disallow: /
Resolver
Resolver ASN
AS15169
Resolver IP
74.125.186.213
Resolver Network Name
Google LLC
Measurement UID
20250401091537.986568_TW_webconnectivity_6be0c9cf3fed49fb
Report ID
20250401T090921Z_webconnectivity_TW_131584_n1_P99StWUcPCPVs6SN
Platform
linux
Software Name
ooniprobe-cli (3.22.0)
Measurement Engine
ooniprobe-engine (3.22.0)
Raw Measurement Data
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