Website reputation report

a2aprotocol.ai

Last checked 6 hours ago · Point-in-time assessment

● Evidence is limited

What is this website?

A2A Protocol enables seamless, secure, and standardized communication between intelligent agents

No listed local patterns observedHomepage-only analysis is not a malware clearance. Read the scope and findings below.

67/100Safety Score
75%Evidence Confidence
Trust Radar evidence profile Eight evidence dimensions from zero to one hundred. Exact values surround the chart. Threat Intelligence55 Domain History68 Infrastructure92 Website Security95 Security Hygiene35 Transparency49 Reputation50 Operational Stability85
Trust RadarEight observed factors. Select one to inspect its evidence.

How to read this report

Safety Score evaluates observed signals. Evidence Confidence measures how complete, direct, fresh, and consistent those signals are.

No automated scan can guarantee that a website is safe.

Independent evidence brief

What we observed about a2aprotocol.ai

Updated Oct 2, 2026

The latest scan examined 10 public pages on a2aprotocol.ai. Website descriptions below come from the site itself. Registration, connection and threat findings were checked separately.

Purpose and visible content

On its homepage, the site says: A2A Protocol enables seamless, secure, and standardized communication between intelligent agents

  • Blog | A2A ProtocolLatest insights, tutorials, and best practices in the A2A Protocol ecosystem
  • Products | A2A ProtocolDiscover products, tools, and services related to the A2A Protocol and agent interoperability.
  • Decisions API | A2A ProtocolDecisions API brings multiple AI decision models into one workflow for classifying, scoring, routing, and evaluating text with…

Registrar and domain history

Registered on Apr 9, 2025. Registrar: Cloudflare, Inc.

Recorded expiry date: Apr 9, 2027. Registry data can change.

Connection and hosting evidence

The checked homepage returned HTTP 200 in about 1000 ms.

A valid TLS certificate was observed, expiring Dec 27, 2026.

Threat checks and score context

External malware-provider coverage was unavailable. The report does not treat this missing check as a clean result.

Safety Score: 67/100. Evidence Confidence: 75%. These measure different things.

Public content profile

Pages reviewed on a2aprotocol.ai

10 of up to 10 pages

We sampled public pages from this website to understand its subject and contact paths. The titles and short descriptions below come from the website itself. They are not endorsements or independent safety findings.

Hashtags found on the website: #general . These are site-supplied labels, not search rankings.

A2A Protocol - Agent2Agent CommunicationA2A Protocol enables seamless, secure, and standardized communication between intelligent agents Blog | A2A ProtocolLatest insights, tutorials, and best practices in the A2A Protocol ecosystem Products | A2A ProtocolDiscover products, tools, and services related to the A2A Protocol and agent interoperability. Decisions API | A2A ProtocolDecisions API brings multiple AI decision models into one workflow for classifying, scoring, routing, and evaluating text with structured outputs. Decision API | A2A ProtocolBuild smarter AI workflows with a unified API for classification, scoring, routing, verification, and other structured decisions. Jev AI Model | A2A ProtocolTry Jev AI Model online for free after sign in. Classify, score, and route text with structured results. Buy credits for API access. FromFlow | A2A ProtocolThe Discord bot maker your server actually needs Magic Layers | A2A ProtocolTurn any flat image into named, editable layers—separate text, subjects, decorations, and backgrounds in just a few clicks. Try OC Maker | A2A ProtocolStart with a simple prompt, then let our AI OC Maker turn your idea into anime characters, fantasy OCs, roleplay avatars, and full-body character designs. 2026 Complete Guide to GLM-OCR for Next-Gen Document Understanding | A2A ProtocolGLM-OCR is a 0.9B-parameter multimodal OCR model built on the GLM-V architecture, designed for complex document understanding, not just text extraction. Delivers structure-first ou

Public page evidence

Topics and keywords observed on a2aprotocol.ai

10 phrases

These phrases were extracted locally from sampled public page metadata. They are observations, not search-volume or ranking estimates.

protocolTitle, Meta description10 sampled pages
textMeta description4 sampled pages
decisionsTitle, H1, Meta description2 sampled pages
makerTitle, H1, Meta description2 sampled pages
modelTitle, H1, Meta description2 sampled pages
agentTitle, H1, Meta description2 sampled pages
decisionTitle, H1, Meta description2 sampled pages
intoMeta description3 sampled pages
structuredMeta description3 sampled pages
ecosystemH1, Meta description2 sampled pages

At a glance

Key findings

✓

Report is current

The displayed evidence comes from the published immutable scan.

i

Confidence is separate

Unavailable evidence is shown as missing and never counted as clean.

!

Verify before sensitive actions

Check the exact URL and context before payments, credentials, or downloads.

Fully explainable

Why this score?

Versioned weights
Threat IntelligenceWeight 25%
55/100

Threat providers were unavailable. The neutral uncertainty baseline is not a clean verdict.

Domain HistoryWeight 10%
68/100

Domain registration age and expiry were checked.

InfrastructureWeight 10%
92/100

Observed DNS records and network address were checked.

Website SecurityWeight 15%
95/100

Observed certificate validity and TLS protocol were checked.

Security HygieneWeight 15%
35/100

Observed security header values were checked for basic protective settings. Empty values, disabled HSTS and unrecognized values receive no credit. This is not a complete browser-policy validation.

TransparencyWeight 5%
49/100

Observed site metadata and About page were checked. Publisher-supplied details are not independently verified.

ReputationWeight 5%
50/100

Popularity is weak context, not proof of safety. Unranked sites use a neutral baseline.

Operational StabilityWeight 15%
85/100

Observed HTTP status and final connection scheme were checked.

Server-side analysis

Automated security checks

Local antivirus and phishing checks

ClamAV · homepage HTMLLocal antivirus is not enabled
Phishing.Database · exact hostnameLocal feed snapshot unavailable

Sampled scripts and pages

Resource antivirus is not enabled

0 resources checked · 13 script links observed on the homepage. Partial resource coverage.

ClamAV inspects the fetched homepage HTML on our server. New scans also sample up to four linked scripts and two collected internal pages, with size and time limits. Scripts are not executed. Other downloads, private server files and logged-in pages remain outside this check. A signature match needs investigation and can be a false positive. No match is not a whole-site safety guarantee.

Exact hostname lookup uses a downloaded Phishing.Database snapshot. It does not send this domain to an external lookup API or mark sibling subdomains as harmful. Not listed does not mean safe. Snapshot age is download age, not proof that every entry was recently revalidated.

Homepage HTML only · Eight local rule families · local-security-v2

Checks use the fetched page and redirect chain. Scripts are not executed, forms are not submitted, and linked files are not downloaded. This is not a malware clearance.

Page resource inventory

Linked scripts13
Inline scripts33
Embedded frames1
External script hosts0

Counts describe the sampled HTML, not every resource loaded by the browser. External resources are common and are not automatically harmful.

No listed local patterns observed. The limited rule set cannot detect every threat or behavior.

External threat intelligence

Provider coverageNot checked

Local checks do not query external reputation databases. An unavailable check is never a clean result.

Registration

Domain information

Public RDAP observation
Canonical domaina2aprotocol.ai
RegistrarCloudflare, Inc
RegisteredApr 9, 2025
Domain age1 year
ExpiresApr 9, 2027
Registry statusesclient transfer prohibited
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address104.21.66.110
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNCloudflare
Web application firewallNot detected

At a glance

Infrastructure summary

Observed during this scan

A compact view of the connection, DNS and security surface. These observations describe what the scanner could verify at scan time and do not prove ownership or ongoing availability.

HTTP response200 · https://a2aprotocol.ai/
Endpoint104.21.66.110
NetworkUnavailable
CDN and WAFCloudflare · Not detected
DNS surface11 records · 2 nameservers · 3 mail exchangers
Protection signals0 security headers · 5 technologies · DNSSEC unknown

Page telemetry

Observed page statistics

Safe metadata only

These counters describe the fetched response and sampled HTML. Script counts describe references in the markup, not a complete browser network log. Cookie counts cover observed response headers.

Response size232,463 bytes
HTTP check duration1,000 ms
Cookies observedUnavailable
Script resources13 · 0 external hosts
Frames and sampled checks1 frames · 0 resources checked

Encrypted transport

TLS certificate

Valid when observed
StatusValid when observed
ProtocolTLSv1.3
IssuercountryName=US, organizationName=Google Trust Services, commonName=WE1
Valid fromSep 28, 2026
Valid untilDec 27, 2026
Certificate namesa2aprotocol.ai

Resolution

DNS footprint

DNSKEY status unknown

DNSKEY presence does not verify the DNSSEC signature chain. Missing records can mean no record was returned or the lookup was unavailable.

A104.21.66.110TTL —
A172.67.159.114TTL —
AAAA2606:4700:3035::ac43:9f72TTL —
AAAA2606:4700:3036::6815:426eTTL —
NScoby.ns.cloudflare.comTTL —
NSsusan.ns.cloudflare.comTTL —
MX50 route3.mx.cloudflare.netTTL —
MX51 route1.mx.cloudflare.netTTL —
MX73 route2.mx.cloudflare.netTTL —
TXTgoogle-site-verification=hIPz3GVO7MAE6YgCNnyxS4dntVg0kVq21L22id1Sg3ETTL —
TXTv=spf1 include:_spf.mx.cloudflare.net ~allTTL —

DNS observations · no external lookup API

Domain email protection

Exact-host SPF and DMARC observations help the owner investigate email impersonation risks. They are separate from website malware checks and do not change the Safety Score.

SPFPolicy record observed, not fully validated
DMARCPolicy record observed, not fully validated

What to do next

Review the records with your mail administrator. Inventory legitimate senders and test SPF and DKIM alignment before enforcing a stricter DMARC policy. Fix duplicate records and investigate overly permissive SPF rules.

This bounded check does not send email, probe SMTP, evaluate recursive SPF includes, verify DKIM signatures or apply organizational-domain DMARC inheritance. A missing subdomain record does not prove that no inherited protection exists. A DNS timeout is unknown, not an absent record. A policy record is not proof that messages authenticate successfully.

Responsible disclosure

security.txt

RFC 9116 observation

No readable security.txt file was observed at the standard locations. This is informational and is not evidence of malware.

Browser protections

Security headers

0 observed

Header evidence is unavailable. Missing data is not treated as a clean result or proof of compromise.

Response headers

Cookie protections

Passive observation

No Set-Cookie header was observed on the sampled homepage response. Other pages may set cookies separately.

Detected stack

Technologies

Bootstrap 80% Cloudflare 98% Google Analytics 94% Next.js 96% Tailwind CSS 72%

Versions are shown only when publicly exposed by the page or response headers. An observed version is not, by itself, proof of a vulnerability.

JavaScript library advisories

JavaScript advisory analysis could not be completed or no eligible script files were sampled. No clean result is implied.

Recommended maintenance checks

Next.jsKeep Next.js and its runtime dependencies current, especially when server-side rendering is enabled.

Publisher supplied

Public contact details

These details were observed on the website, not independently verified as an active support channel.

Emailcontact@a2aprotocol.aiSource: https://a2aprotocol.ai/

Structured facts

Website identity & response

Public page metadata
Page titleA2A Protocol - Agent2Agent Communication
First headingAgent2AgentProtocol
DescriptionA2A Protocol enables seamless, secure, and standardized communication between intelligent agents
Canonical URLhttps://a2aprotocol.ai
Final URLhttps://a2aprotocol.ai/
HTTP response200 · text/html; charset=utf-8 · 1000 ms
Languageen
Structured typesNone observed
Page page detectedhttps://a2aprotocol.ai/blog
en100% evidence confidence
1100% evidence confidence
missing100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence
Dns consistency.cname present100% evidence confidence
unavailable100% evidence confidence
3100% evidence confidence
2100% evidence confidence
11100% evidence confidence
4100% evidence confidence
Local headers.cors present100% evidence confidence
Local headers.cors wildcard origin100% evidence confidence
Local headers.csp present100% evidence confidence
Local headers.hsts present100% evidence confidence
Local headers.permissions policy present100% evidence confidence

Connection path

Redirect chain

0 recorded hops

No redirect hop was recorded for the sampled homepage.

Premium monitoring

Catch downtime and security changes automatically

Regular checks, availability history, and alert emails are reserved for Premium websites. Free reports remain point-in-time scans and do not create recurring server work.

Enable monitoring for this website

Compared with the previous scan

What changed

A comparison will appear after the next completed scan.

Explainable matching

Digital fingerprint

fingerprint-v1
deep-harbor-trace-226

Comparable components help find technically related websites. A match does not prove common ownership.

DnsHashed private comparison value
TechnologiesHashed private comparison value

Material changes only

Change history

No meaningful changes recorded yet.

Website icon for a2aprotocol.ai

Visual evidence

Website screenshot

Screenshot of a2aprotocol.ai
Captured once in an isolated browser during this scan. Visual tint is an interface overlay. The original evidence is not duplicated.

For site owners

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Questions about a2aprotocol.ai

FAQ

Still have questions? Contact us →
Is a2aprotocol.ai safe to visit?

The latest Safety Score is 67/100 with 75% Evidence Confidence. This is a point-in-time assessment of observed technical signals, not a guarantee. Check the exact address and avoid entering payment details if anything looks unusual.

Did the scan detect malware on a2aprotocol.ai?

External threat-provider coverage was unavailable for this scan, so malware status is unverified.

When was a2aprotocol.ai registered?

The public registry record shows Apr 9, 2025. Registration details may be privacy-protected or updated later.

Did a2aprotocol.ai have a valid TLS certificate?

The scanner observed a valid TLS certificate using TLSv1.3. A valid certificate alone does not establish that the site is safe.

Can a paid listing change this website's score?

No. Premium placement and owner-supplied pages are labelled separately. Technical evidence, the Safety Score and moderation decisions remain independent.