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Updated: 2026-09-03 15:15 Language: English (default) Access: Normal

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Website Overview

An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality.

Domain and Registration

Registered in 2004, this domain has about 22 years of history. That suggests continuity, although ownership and purpose may have changed. The registrar, MarkMonitor Inc., specializes in corporate domain and brand management, suggesting attention to domain asset protection. Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The domain uses the common .io extension, which is not an independent safety signal.

DNS and Email

Nameservers are provided by flydns.net, indicating managed DNS hosting. MX records point to the Google Workspace email service. No CNAME was found; the observed records resolve directly to addresses. SPF and DMARC are configured. DKIM status is unknown. TXT records include verification markers for Google, Apple. Such markers may also remain after a service stops being used.

TLS and Certificates

The public key uses EC with 256 bits. The server supplied a complete certificate chain. No organization name is present in the certificate; the available fields are consistent with domain validation. The certificate was issued by Let's Encrypt, commonly associated with automated certificate services. The certificate's total validity is about 89 days, consistent with a short renewal cycle.

HTTP and Browser Security

The response lacks these common security headers: HSTS, Permissions-Policy. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The via response header indicates a CDN or caching proxy in the delivery path. No obvious internal addresses or debug information were found in the headers. The Server header contains the custom value Fly/ec1a4f957c (2026-08-31).

Technology Stack Analysis

The public page identifies Google Tag Manager, Google Analytics without precise versions, leaving fewer clues for version-specific scanning.

Search and Social Sharing

No homepage meta description was detected, leaving snippet selection more dependent on page text. Twitter Card metadata is configured. JSON-LD includes Organization data, helping describe the organization as an entity. The title has 26 characters, within a common display range. The observed directives allow indexing and link following.

Hosting and Email

DNSflydns.net
HostingFly.io, Inc.
EmailGoogle Workspace
Location United States flagMississippi, United States 37.16.18.81

Pages, Search and Sharing

Meta descriptionNot detected
Canonical URLhttps://fly.io/
LanguageEnglish (default)
Twitter Cardsummary_large_image

Social Sharing Preview

9 fields

robots.txt (opens in a new tab)

1 rules
All bots 1 allowed · 0 disallowed
  • Allow/

Sitemaps

1

Registration details RDAP / WHOIS

RegistrarMarkMonitor Inc.
Registered2004-07-15
Expires2033-07-15
Domain statusclientDeleteProhibited https://icann.org/epp#clientDeleteProhibited、clientTransferProhibited https://icann.org/epp#clientTransferProhibited、clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Nameserversns1077.hosted.flydns.net、ns1970.hosted.flydns.net、ns479.hosted.flydns.net、ns967.hosted.flydns.net
DNSSECunsigned

DNS records

TypeNameValueTTLPriority
Afly.io37.16.18.81149—
AAAAfly.io2a09:8280:1::a:791595—
MXfly.ioaspmx.l.google.com6001
MXfly.ioalt1.aspmx.l.google.com6005
MXfly.ioalt2.aspmx.l.google.com6005
MXfly.ioalt3.aspmx.l.google.com60010
MXfly.ioalt4.aspmx.l.google.com60010
NSfly.ions1077.hosted.flydns.net172800—
NSfly.ions1970.hosted.flydns.net172800—
NSfly.ions479.hosted.flydns.net172800—
NSfly.ions967.hosted.flydns.net172800—
TXTfly.io03D3122BDC300—
TXTfly.io_6qhz8a8hhmv7vx0gk9eylqv9k240wu9300—
TXTfly.ioapple-domain-verification=mIsxYwEIYJeZOCwgSgclXPauTY3vXMKf8r6t8TGhEq4300—
TXTfly.iogoogle-site-verification=379cCwTcRnv9DSPgO7yVqbpcdQwGQFJ2I8YS_KLGhp0300—
TXTfly.iogoogle-site-verification=5q_5HX7KS4tbjq8xa4s3cDITGNsvfP_45TdlEN1EHl0300—
TXTfly.iogoogle-site-verification=6-4NGHVsimTGK74KKPge726I27PuLMhCiUds9tsweGU300—
TXTfly.iogoogle-site-verification=OArdonQ-wgkSCtiZm8ot2oLIgorR5PS_r8mBIf2xGdE300—
TXTfly.iogoogle-site-verification=z7yrcJLj7gJJEicgVILh5EJrAmAcEQJ8t11bpcspQp8300—
TXTfly.iostatus-page-domain-verification=45m41jq1lznf300—
TXTfly.iostripe-verification=8590be7414624f53382d4049d11f21b2e40b1fcd6a9c13ebee6e945cf61d4871300—
TXTfly.iov=spf1 include:_spf.google.com include:helpscoutemail.com include:stspg-customer.com ~all300—
DMARC_dmarc.fly.iov=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=1001800—

TLS and certificates

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectfly.io
IssuerLet's Encrypt
Valid until2026-12-01T23:48 · Remaining when checked: 89 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HeaderValue
content-typetext/html; charset=utf-8
cache-controlmax-age=0, private, must-revalidate
serverFly/ec1a4f957c (2026-08-31)
content-security-policybase-uri 'self'; frame-ancestors 'self';
x-content-type-optionsnosniff
referrer-policystrict-origin-when-cross-origin
set-cookieRedacted

Identified technologies

Google Tag ManagerGoogle Analytics

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