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marshmallow is an ORM/ODM/framework-agnostic library for converting complex datatypes, such as objects, to and from native Python datatypes.

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Updated: 2026-09-01 10:02 Language: English (default) Access: Normal

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marshmallow 4.3.1 documentation Full homepage screenshot

Website Overview

An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality. An active inbound-mail setup with incomplete authentication may leave the domain more open to impersonation. Provider hosting alone does not close that gap.

Domain and Registration

Registered in 2014, this domain has about 12 years of history. That suggests continuity, although ownership and purpose may have changed. Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The registrar is Cloudflare, Inc, a widely used domain service provider. The domain uses the common .io extension, which is not an independent safety signal.

DNS and Email

MX records exist, but SPF, DKIM and DMARC were not detected. Protection against domain impersonation may be incomplete. Nameservers are provided by Cloudflare, indicating managed DNS hosting. MX records point to the Google Workspace email service. CAA records restrict which certificate authorities are authorized to issue certificates. No CNAME was found; the observed records resolve directly to addresses.

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 within the Google Trust Services cloud or CDN ecosystem. The certificate's total validity is about 90 days, consistent with a short renewal cycle.

HTTP and Browser Security

The response lacks these common security headers: CSP, Permissions-Policy, clickjacking protection. CORS permits any origin to read this response. This is common for public resources; sensitive responses need narrower handling. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The cf-ray response header indicates a CDN or caching proxy in the delivery path. No obvious internal addresses or debug information were found in the headers.

Technology Stack Analysis

The public page identifies Cloudflare without precise versions, leaving fewer clues for version-specific scanning.

Search and Social Sharing

No homepage canonical URL was detected. If duplicate URLs exist, consolidation may be less explicit. The title has 31 characters, within a common display range. A meta description is present, with 140 characters. The observed directives allow indexing and link following. No Generator meta tag is publicly exposed.

Hosting and Email

DNSCloudflare
HostingCloudflare
EmailGoogle Workspace
Location United States flagUnited States 2606:4700::6810:fd78

Pages, Search and Sharing

Meta descriptionmarshmallow is an ORM/ODM/framework-agnostic library for converting complex datatypes, such as objects, to and from native Python datatypes.
Canonical URLNot detected
LanguageEnglish (default)
Twitter CardNot detected

Social Sharing Preview

5 fields

robots.txt (opens in a new tab)

0 rules
All bots 0 allowed · 0 disallowed

Sitemaps

1

Registration details RDAP / WHOIS

RegistrarCloudflare, Inc
Registered2014-06-14
Expires2028-06-14
Domain statusclientTransferProhibited https://icann.org/epp#clientTransferProhibited
Nameserversivan.ns.cloudflare.com、tegan.ns.cloudflare.com
DNSSECunsigned

DNS records

TypeNameValueTTLPriority
Amarshmallow.readthedocs.io104.16.253.120300—
Amarshmallow.readthedocs.io104.16.254.120300—
AAAAmarshmallow.readthedocs.io2606:4700::6810:fd78300—
AAAAmarshmallow.readthedocs.io2606:4700::6810:fe78300—
MXreadthedocs.ioaspmx.l.google.com3001
MXreadthedocs.ioalt1.aspmx.l.google.com3005
MXreadthedocs.ioalt2.aspmx.l.google.com3005
MXreadthedocs.ioaspmx2.googlemail.com30010
MXreadthedocs.ioaspmx3.googlemail.com30010
NSreadthedocs.ioivan.ns.cloudflare.com86400—
NSreadthedocs.iotegan.ns.cloudflare.com86400—
CAAreadthedocs.io0 issue " amazontrust.com"300—
CAAreadthedocs.io0 issue "comodoca.com"300—
CAAreadthedocs.io0 issue "digicert.com; cansignhttpexchanges=yes"300—
CAAreadthedocs.io0 issue "letsencrypt.org"300—
CAAreadthedocs.io0 issue "pki.goog; cansignhttpexchanges=yes"300—
CAAreadthedocs.io0 issue "ssl.com"300—
CAAreadthedocs.io0 issuewild "amazonaws.com"300—
CAAreadthedocs.io0 issuewild "comodoca.com"300—
CAAreadthedocs.io0 issuewild "digicert.com; cansignhttpexchanges=yes"300—
CAAreadthedocs.io0 issuewild "letsencrypt.org"300—
CAAreadthedocs.io0 issuewild "pki.goog; cansignhttpexchanges=yes"300—
CAAreadthedocs.io0 issuewild "ssl.com"300—

TLS and certificates

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectreadthedocs.io
IssuerGoogle Trust Services
Valid until2026-10-25T13:31 · Remaining when checked: 54 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HeaderValue
content-typetext/html; charset=utf-8
cache-controlmax-age=1800, stale-if-error=86400, public
servercloudflare
strict-transport-securitymax-age=31536000; includeSubDomains; preload
x-content-type-optionsnosniff
referrer-policyno-referrer-when-downgrade
access-control-allow-origin*
set-cookieRedacted

Identified technologies

Cloudflare

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