Location
United States
Country level only
Domain
agent.cloud
Hosted by Fly.io in the United States. Only the country is known, which is common for anycast and CDN addresses.
Still looking this up. This tab fills in as the answers arrive.
Network Every network on the internet has an autonomous system number (ASN). This is the one that announces this address.
AS40509Fly.io
Fly.io, Inc.
BGP prefixPrefix The block of addresses this IP is announced in to the rest of the internet. RPKI valid means the block's owner signed off on the network announcing it.
RPKI valid66.241.124.0/23
Seen by 2,706 peers
Latency Round trip for an HTTPS request from your browser to the site and back, including the server's reply time.
Live— ms
Measuring from your browser…
At a glance
Route
Finding a probe near you…
Networks crossed
Each network is an autonomous system (AS). Your traffic is handed from one to the next where they connect, following
the routes BGP advertises.
- AS16509Anthropic, PBC
- AS40509Fly.io
Tracing from a probe near you with Globalping. Hop locations that its round-trip times rule out are left off the map.
DNS records
TypeNameValueTTL
Aagent.cloud66.241.125.22610 min
AAAAagent.cloud2a09:8280:1::1a4:e479:010 min
NSagent.cloudns25.domaincontrol.com1 hr
NSagent.cloudns26.domaincontrol.com1 hr
TXT_dmarc.agent.cloud"v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=mailto:dmarc_rua@onsecureserver.net;"1 hr
Partly protected
DMARC is enforced but there's no SPF record, so mail passes only with a valid DKIM signature.
- Receives mail
- No mail servers
- SPFLists the servers allowed to send mail for the domain. Receivers check it against the sending server.
- Missing
- DMARCTells receivers what to do with mail that fails SPF and DKIM: nothing (none), spam folder (quarantine) or reject.
- Quarantinesends reports
- MTA-STSRequires other mail servers to use encrypted connections (TLS) when delivering to this domain.
- Not published
- TLS reportsAsks other mail servers to report failed encrypted deliveries (TLS-RPT).
- Not requested
- BIMIA brand logo that some mail apps show next to authenticated mail from the domain.
- Not published
Details
Network
- IPv4
- 66.241.125.226
- Reverse DNSThe hostname this address points back to (its PTR record).
- ip-66-241-125-226.shared.customer.flyio.net
- ASNThe autonomous system number of the network that announces this address.
- AS40509
- Operator
- Fly.io, Inc.
- PrefixThe block of addresses announced over BGP that contains this address.
- 66.241.124.0/23
- RPKIWhether a signed record (ROA) authorizes this network to announce this prefix.
- Valid
- VisibilityHow many bgp.tools peers carry this announcement.
- 2,706 peers
- Type
- Content
- Registry
- ARIN
Location
Country level- Country
- United States
- Region
- Mississippi
- Continent
- North America
Registration
RDAP- Registrar
- GoDaddy
- Registered
- Feb 11, 201610 years ago
- Expires
- Feb 11, 2029in 2 years
- Updated
- Oct 8, 2026
- StatusRegistry flags on the domain, such as locks that stop unauthorized transfers or changes.
- Delete lockedclient renew prohibitedUpdate lockedTransfer locked
- DNSSECDNSSEC signs DNS answers so they can't be forged on the way to you.
- Unsigned
- Name servers
- ns25.domaincontrol.comns26.domaincontrol.com
- Registrant
- Redacted for privacy
Feb 11, 2016853 days leftFeb 11, 2029
Exposure
Open ports
7 sensitive- 11
- 13
- 15
- 19
- 43
- 53DNS
- 70
- 79
- 80HTTP
- 86
- 104
- 111RPC
- 113
- 175
- 195
- 264
- 311
- 314
- 389LDAP
- 427
- 443HTTPS
- 444
- 465SMTPS
- 593
- 685
- 789
- 873
- 902
- 995POP3S
- 1022
- 1080SOCKS
- 1099
- 1195
- 1198
- 1337
- 1388
- 1433SQL Server
- 1599
- 1604
- 1801
- 1883MQTT
- 1926
- 1962
- 2000
- 2068
- 2083cPanel
- 2087WHM
- 2100
- 2107
- 2108
- 2201
- 2209
- 2220
- 2376Docker API
- 2550
- 2567
- 3001
- 3020
- 3047
- 3056
- 3057
- 3137
- 3156
- 3169
- 3183
- 3299
- 3301
- 3310
- 3311
- 3388
- 3389Remote Desktop
- 3562
- 3580
- 3780
- 3790
- 3794
- 4000
- 4063
- 4150
- 4321
- 4369
- 4433
- 4434
- 4437
- 4443HTTPS alt
- 4444
- 4506
- 4786
- 4949
- 5001
- 5006
- 5007
- 5025
- 5201
- 5271
- 5432PostgreSQL
- 5672RabbitMQ
- 5905
- 5915
- 5938
- 5986
- 6000
- 6001
- 6070
- 6379Redis
- 6443Kubernetes API
- 6503
- 6666
- 6667
- 6998
- 7001
- 7071
- 7084
- 7087
- 7171
- 7331
- 7349
- 7415
- 7434
- 7443
- 7480
- 7535
- 7548
- 7634
- 7773
- 7782
- 8009
- 8020
- 8023
- 8029
- 8056
- 8065
- 8081
- 8083
- 8085
- 8087
- 8089
- 8102
- 8126
- 8131
- 8132
- 8139
- 8140
- 8157
- 8158
- 8181
- 8291
- 8315
- 8409
- 8413
- 8436
- 8443HTTPS alt
- 8446
- 8454
- 8455
- 8503
- 8575
- 8640
- 8728
- 8832
- 8833
- 8834
- 8873
- 8879
- 8880
- 8889
- 8912
- 8988
- 9000HTTP alt
- 9001
- 9002
- 9023
- 9042
- 9073
- 9091
- 9095
- 9098
- 9100
- 9117
- 9122
- 9143
- 9151
- 9156
- 9175
- 9312
- 9383
- 9398
- 9410
- 9418
- 9443
- 9480
- 9530
- 9600
- 9700
- 9885
- 9898
- 9943
- 9999
- 10000
- 10048
- 10134
- 10250Kubelet
- 10443
- 11210
- 11211Memcached
- 11288
- 12120
- 12187
- 12189
- 12238
- 12243
- 12263
- 12278
- 12283
- 12289
- 12293
- 12306
- 12335
- 12349
- 12357
- 12371
- 12393
- 12399
- 12406
- 12433
- 12562
- 13333
- 15044
- 16029
- 16054
- 16084
- 16404
- 16667
- 16993
- 18071
- 18078
- 18084
- 18086
- 18245
- 18802
- 20000
- 20082
- 20256
- 20547
- 20880
- 21254
- 21379
- 21515
- 23184
- 25001
- 25082
- 25084
- 27015
- 31337
- 31444
- 32764
- 35000
- 37777
- 41800
- 42443
- 44818
- 47990
- 48020
- 49686
- 50000
- 52536
- 55443
- 55553
- 55554
- 57788
- 61616
- 61617
- 63260
- Seen asHostnames Shodan has seen pointing at, or presented by, this address.
- start.deepgram.comip-66-241-125-226.shared.customer.flyio.net
From Shodan InternetDB, updated weekly.
HTTPS
Certificate
Valid- Issuer
- Let's Encrypt
- Issuing CA
- YR1
- Covers
- agent.cloud
- Also validOther unexpired certificates for this name, found in Certificate Transparency logs.
- 1 more certificate
Oct 5, 202684 days leftJan 3, 2027
From Certificate Transparency logs, via Cert Spotter.
Security
F- HSTSStrict-Transport-Security makes browsers refuse plain HTTP to this site. Preloaded sites are HTTPS-only even on a first visit.
- 1 year · with subdomains
- HTTP → HTTPSWhether the plain http:// address redirects visitors to the secure one.
- Redirects
- HTTP/3The newest HTTP, over QUIC. Announced in the alt-svc header or the domain's HTTPS DNS record.
- Not announced
- CAADNS records naming the only certificate authorities allowed to issue certificates for the domain.
- Any CA may issue
- security.txtA standard file (RFC 9116) telling security researchers how to report vulnerabilities.
- security@summation.com
Security headers 1 of 7
- HSTSpresent
- CSPmissing
- Framingmissing
- No sniffingmissing
- Referrermissing
- Permissionsmissing
- Isolationmissing
Response
200 OK236 ms from CMHDNS lookup59 ms
200 agent.cloud236 ms
DNSConnect (TCP + TLS)Waiting for the replyFrom Cloudflare's CMH data center
Response headers
- content-type
- text/html; charset=UTF-8
- strict-transport-security
- max-age=31536000; includeSubDomains
- content-encoding
- br
- date
- Mon, 12 Oct 2026 16:04:07 GMT
- connection
- close
- keep-alive
- timeout=5
- transfer-encoding
- chunked
- server
- Fly/268b58352a (2026-10-09)
- via
- 1.1 fly.io, 1.1 fly.io
- fly-request-id
- 01M4RDPT4M87TD7TA4JSNM8CVP-iad
Website
Page
agent.cloud
Build with any coding agent. agent.cloud runs the app, rehearses releases on a branch of production, and asks you before your data changes.
- Language
- English
- Theme color
- #ffffff
Built with
- Hosting
- Fly.iofly-request-id header
Tech stack
Built with Each entry says what gave it away: a response header, a cookie's name, an asset's path or file name, or markup the tool leaves in the page. Versions are checked against endoflife.date's support schedules and, for JavaScript packages, OSV's vulnerability database, which carries GitHub's security advisories.
Hosting
- Fly.io
fly-request-id header
Fonts
- Geist
from Google Fonts
- Geist Mono
from Google Fonts
How it's made
- RenderingPrerendered pages are built ahead of time and served as files. Pages rendered on each request are built by server code for every visitor. Pages drawn in the browser arrive nearly empty and depend on JavaScript, which most AI crawlers don't run. Islands are interactive parts in otherwise static HTML.
- Complete HTML752 words before any script runs
- Server codeWhere the site's server code ran for this request, from the host's request ID. The edge location near heade.rs isn't shown: it's wherever the request came from.
- Washington, D.C. iadFly.io
- HTML
- 33.9 KB · sent Brotli-compressed
- Scripts
- 1 file · 2 inlineall from this site · 1 modules
Code from other sites Scripts a page loads from another domain run with the same power as its own code: they can read what visitors type and change the page. heade.rs checks what the HTML loads, not what tag managers add once they run.
- Fonts
- Google Fonts
AI & agents
Open to AI crawlers
There's no robots.txt, so every AI crawler may come in.
Crawlers
No robots.txtTrainingSearchOn request
They visit a page when someone asks an assistant about it. ChatGPT's, Perplexity's, Meta's and Amazon's treat robots.txt as advisory;
Anthropic's and Mistral's follow it.
OpenAIGPTBotallowedOAI-SearchBotallowedChatGPT-Userallowed
AnthropicClaudeBotallowedClaude-SearchBotallowedClaude-Userallowed
GoogleGoogle-ExtendedallowedGooglebotallowed—
Microsoft—bingbotallowed—
AppleApplebot-ExtendedallowedApplebotallowed—
Perplexity—PerplexityBotallowedPerplexity-Userallowed
MetaMeta-ExternalAgentallowedMeta-WebIndexerallowedMeta-ExternalFetcherallowed
AmazonAmazonbotallowedAmzn-SearchBotallowedAmzn-Userallowed
MistralMistralAI-TrainingallowedMistralAI-IndexallowedMistralAI-Userallowed
OthersCCBotallowedBytespiderallowedDuckAssistBotallowed
- Can cite itThe AI products that can use the site in their answers: each answers from one crawler (OAI-SearchBot for ChatGPT search, Googlebot for AI Overviews, bingbot for Copilot), and robots directives on the front page, like noindex, nosnippet and noarchive, keep some out.
- ChatGPT searchClaudePerplexityAI OverviewsGeminiCopilotMeta AISiri
Reading
- Without JavaScriptText on the front page before any scripts run: what GPTBot, ClaudeBot, PerplexityBot and most agents read. Google, Bing and Apple's crawlers run scripts.
- 752 words
- MarkdownAgents like Claude Code, Cursor and OpenCode ask for Markdown in their Accept header. It's the page without its markup, so it costs them far fewer tokens.
- Not offered
- llms.txtA Markdown file listing a site's key pages for AI tools. Coding agents read it; search crawlers mostly don't.
- 0 links
- Structured dataschema.org JSON-LD in the page: facts about the site in a form machines read directly.
- None on the front page
Tools Ways an AI agent can do things on the site, not just read it: an MCP server that apps like Claude, ChatGPT and Cursor connect to, an API catalog, packaged agent skills, a shopping profile (UCP), or tools the page offers AI in the browser (WebMCP). heade.rs looks in the official MCP Registry and the files the site publishes under /.well-known/.
No MCP server, API catalog, agent skills, shopping profile or in-page tools found.