Search
MAT Charts
Circumvention Charts
Countries
OK
https://fbcdn.net/robots.txt
El Salvador
Country
AS14754
Network
April 26, 2025, 08:47 PM UTC
Date & Time
Websites
Websites
Web Connectivity Test 
Runtime: 1.3s
Share on Facebook or Twitter
On April 26, 2025, 08:47 PM UTC, https://fbcdn.net/robots.txt was accessible when tested on AS14754 in El Salvador.

Failures

HTTP Experiment
null
DNS Experiment
null
Control
null

DNS Queries

Resolver:
74.63.28.235
Query:
IN A fbcdn.net
Engine:
system
Name
Class
TTL
Type
DATA
@
IN
A
57.144.196.1

TCP Connections

Connection to 57.144.196.1:443 succeeded.

HTTP Requests

URL
GET https://fbcdn.net/robots.txt
Response Headers
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: 'self' data: 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-Security-Policy-Report-Only:
default-src blob: 'self';script-src *.facebook.com *.fbcdn.net *.facebook.net 127.0.0.1:* blob: 'self' 'report-sample' 'nonce-IQdP1ehy' 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';report-uri https://www.facebook.com/csp/reporting/?minimize=0;
Content-Type:
text/html; charset="utf-8"
Cross-Origin-Embedder-Policy-Report-Only:
require-corp;report-to="coep_report"
Cross-Origin-Opener-Policy:
same-origin-allow-popups
Date:
Sat, 26 Apr 2025 20:47:40 GMT
Expires:
Sat, 01 Jan 2000 00:00:00 GMT
Origin-Agent-Cluster:
?1
Pragma:
no-cache
Proxy-Status:
http_request_error; e_fb_responsebytes="AcPNh28beZKPLievMj59uBxsagdvWFD_lXCjgJ8vH16rRaPiLjPSNe80OnAt"; e_fb_requesttime="AcOWFUSpW7zVbNMiGq_rzAg-XkdXJSRYFmTRum58avmzSYnZi9_5en34k3NVWtaGiyr-I--uGg"; e_proxy="AcMUY5TKi7GumiBcH-fRvDyKfJZQ8kBcuHFcclmTAxfTtDq9O-MCbjXHkAfReq3jTm3Mdayk3i2BV4iwX_Kl"; e_fb_twtaskhandle="AcPNOVNBORwBVDrntl5fqZ-jdwbSDYsfgCe2SHcrm08vMKbG7nK22raLGfNdb0-8UuSro1OpAB-SD8cuSoffu3RWgK1hjlbreAkPg-BUrrOeYw"; e_fb_requestsequencenumber="AcODCC6culBnYo6oWe-R7dRvbQAnUM0LZjjFJafGLP0F6xGLrNe31A3bQ_J6"; e_upip="AcO-gx7UdmX2GFpfB4gk_PEkYw2zLceFk3e1o2tk3XJjE9eCcM43Y3aMXwY3XrvCwCBH9aohtNyP6ajWpLIzB2gjLkoM8msVJduHhA"; e_fb_zone="AcN9Gz5lIvmzXyvoTEXQ8WlmBy-LpHorU_lcJpq5dgE8fPGqJSuzVeqmmmIgiJsC"; e_fb_binaryversion="AcOfPpdmXyX5SjmcVdsX6tV9FYSgEXqRDA4i6sMH2m3JOiKMM9HXdcQSPQ1tBFjWAlD07vStYqgEOa5VuwyTgXkUmGsixUgoh6g"; e_fb_httpversion="AcO3IRu2g9NmbZMXGcJClVBeYkrgTOoXYZGgDvEUmcODRfIIFjltUKzbjgx4"; e_fb_requesthandler="AcP8xnekwNtjqO12QOKOMopsRFETIE4GWX6cfUTKBBNE7RDsBrbR8FH7ib8KTk-7SEngYa9j_b4"; e_fb_configversion="AcP-FfTVVxj6p979cq0DoSgZrFq6CrFoSaY1j0yU4sKAzAH0xqnkizTvFniZ0A"; e_fb_vipaddr="AcPndPnwt9ngd9bPs1tSr7bi2wcQn03b56-NJjhPOlM3vY6NrPcZdnnfR497EfbXinquWXJg_IbJ-ZP09m6rsWj8N1D-aiif"; e_fb_hostheader="AcOwZHWwPgvRTLJUMaL9DUANAFTIVF0ELGRy0k_CEmuN0eDH6POMgvSN0bnO9x-CRtfy"; e_fb_builduser="AcNW8MyWiJit-jb0t8XOSZDbRnKJVdxlD2VfwlETVq4Xp7fOY7CQCdwQ4s_s0_XPbug"; e_fb_vipport="AcNgrVQNQu85DcwZ3nIZ9eG8omzMIPeXXUMV5t7hkj_707I8WUSHrupc9BhZ"; e_clientaddr="AcPoqcRFXLGZaKsjjcyjb5dZzK2CU4Na4RoPimFb9GvghkywuMTJn1_6qni4C_9xnAlRWB7NszcUn4zh4W9x6vZi1xQj0vVzaXNfritX9FsPq6LE", http_request_error; e_fb_requesttime="AcO37LbKEUhX_-45pzQQuMPPzbFPGMYFb7BWhsNHNfYCwIjO5PLj0dGBpmCx8va8-UQrnqlL1w"; e_proxy="AcM4hQDvJA97ym8vJpgleJd3aGOWsT0uL5b8CgWg8IEFLATG0xG6DlXrxkia8Ac0RWoVX3qBw9fwDaY"; e_fb_twtaskhandle="AcOwMgIkpsAevBZoYiMIbaiXnKCN_3emQ-S7G4TmWaWu92zDrJWDfBpjVFVKKhssR7huaA7U9IP-JzOUjFuVwWVWXv_yNxS4PEqe"; e_fb_requestsequencenumber="AcNyY7L1t2n1QzDuHlmGlrsz0fsxJKJFcy4F9syAupjhV867wOQuJztRPw"; e_upip="AcOlIF1h-pSAKSGscLnk2w0G-cuT_9rMuY4Cg-48xTHn12860Ue4wMAUc3ovZRKYji8qgGdSEXoR-3WPkOJwCqXmoklFkkDz"; e_fb_zone="AcO-vzS9ELZAifmboEJPNVXvbZzuHzqsTxpVpS4PJgjxdgrqa6t-GhcKSvuweQ"; e_fb_binaryversion="AcOfEs5MB3C4ef7Q_w2Fw8raJU6ibabEVxE68Oa2JqNgt6-w9-1To0Gz80p2mLovw4MFcrgDB4YPV76B4fyLX8uizYMiBDKL5JY"; e_fb_httpversion="AcMF0vRFIYQLP3uPvqddOwlEsi7bonUULWOaGjFAbMuEGqVUfrcWLsZ7tDbO"; e_fb_requesthandler="AcMHkRXcRDUrj-QFE3n1XiO7jq-eq3REtVJHjIRtC12GxEGDgTj1ouSyO0Lr2zBdDVZGsZADXgFhOcvsvqKya3Df"; e_fb_configversion="AcNsiIb_fa-IT6BFD50RrUqNGG3hiU_ZjQ8V-swR5gaqUu5DsblsrqAme0WblrqhR97WnP1Te6tQ4jtrw8Kf-oCKxz7_cASb0-o"; e_fb_vipaddr="AcPa2Jp5rhcbyRIwu1E8ChnW9Q-yD5vnU9_oed-lFkh8Mds80ZIz2hYzegtjzqk_Biw73Z7L"; e_fb_hostheader="AcPUBaSpUvk0nbt809C2Tcwl3TWoqSwfPi86PJfnqDLJ-BtwTlDFpHxJAlt4MWO7gm6m"; e_fb_builduser="AcPYKRCYx3G-A4d0iqrpC7If4pmGbWi5-nyrjcDDr4at9CZjNs5ArUMzA8sKpStRrgw"; e_fb_vipport="AcO9cSdt_bTkmyv3I_8uA5dZsTrvd_7OMErvO6jVL4mJn33-AY36zwNeGCfx"; e_clientaddr="AcN1fi_MaSNfAjiVlWlXsYtRnJ2AY0hL7qQ86spuqHZdoNuwKRkPTmpjEoETXSHGEdpGdwp4ecWeOufAkIU"
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"}
Reporting-Endpoints:
coop_report="https://www.facebook.com/browser_reporting/coop/?minimize=0", coep_report="https://www.facebook.com/browser_reporting/coep/?minimize=0"
Strict-Transport-Security:
max-age=31536000; preload; includeSubDomains
Vary:
Accept-Encoding
X-Content-Type-Options:
nosniff
X-Fb-Connection-Quality:
EXCELLENT; q=0.9, rtt=47, rtx=0, c=10, mss=1380, tbw=3632, tp=-1, tpl=-1, uplat=155, ullat=0
X-Fb-Debug:
zZsiAnTSvBsWFMWjWxd1TPGS0/XEeTgEjSK/8MDMrzvMa+F9VSNfzRR6ePlT+KKpwSBIxuonz2vZMxWNdbjUzQ==
X-Frame-Options:
DENY
X-Xss-Protection:
0
Response Body
<!DOCTYPE html><html lang="en" id="facebook"><head><title>Error</title><meta charset="utf-8" /><meta http-equiv="Cache-Control" content="no-cache" /><meta name="robots" content="noindex,nofollow" /><style nonce="IQdP1ehy">html, body { color: #333; font-family: 'Lucida Grande', 'Tahoma', 'Verdana', 'Arial', sans-serif; margin: 0; padding: 0; text-align: center;}
#header { height: 30px; padding-bottom: 10px; padding-top: 10px; text-align: center;}
#icon { width: 30px;}
.core { margin: auto; padding: 1em 0; text-align: left; width: 904px;}
h1 { font-size: 18px;}
p { font-size: 13px;}
.footer { border-top: 1px solid #ddd; color: #777; float: left; font-size: 11px; padding: 5px 8px 6px 0; width: 904px;}</style></head><body><div id="header"><a href="//www.facebook.com/"><img id="icon" src="//static.facebook.com/images/logos/facebook_2x.png" /></a></div><div class="core"><h1>Sorry, something went wrong.</h1><p>We&#039;re working on getting this fixed as soon as we can.</p><p><a id="back" href="//www.facebook.com/">Go back</a></p><div class="footer"> Meta &#169; 2025 &#183; <a href="//www.facebook.com/help/?ref=href052">Help</a></div></div><script nonce="IQdP1ehy">
              document.getElementById("back").onclick = function() {
                if (history.length > 1) {
                  history.back();
                  return false;
                }
              };
            </script></body></html><!-- @codegen-command : phps GenerateErrorPages --><!-- @generated SignedSource<<a2e14b6d3c6a99777af41324d62f78e6>> -->

Resolver

Resolver ASN
AS42
Resolver IP
74.63.28.235
Resolver Network Name
WoodyNet, Inc.
Report ID
20250426T204411Z_webconnectivity_SV_14754_n1_dZAemTFmbkO0INIa
Platform
windows
Software Name
ooniprobe-desktop-unattended (3.23.0)
Measurement Engine
ooniprobe-engine (3.23.0)

Raw Measurement Data

Loading