Location
Brazil
Country level only
Domain
fabiosp.com
Hosted by RedeHost Internet Ltda. in Brazil. 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.
AS53057RedeHost Internet Ltda.
RedeHost Internet Ltda.
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.
No RPKI187.84.236.0/23
Seen by 2,505 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
- AS53057RedeHost Internet Ltda.
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
Afabiosp.com187.84.237.2021 hr
NSfabiosp.comns148.umbler.in1 hr
NSfabiosp.comns283.umbler.com.br1 hr
NSfabiosp.comns840.umbler.co.uk1 hr
NSfabiosp.comns534.umbler.com1 hr
MXfabiosp.com40 mx240.umbler.co.uk1 hr
MXfabiosp.com10 mx364.umbler.com1 hr
MXfabiosp.com20 mx128.umbler.in1 hr
MXfabiosp.com30 mx783.umbler.com.br1 hr
TXTfabiosp.com"v=spf1 include:spf.umbler.com ~all"1 hr
Exposure
Open ports
3 open- 80HTTP
- 443HTTPS
- 9922
- Software
- WordPressOpenSSH 7.4Apache HTTP Server
- Possible CVEsMatched from the software versions it reports, so a server that's been patched without changing its version string can still be listed.
- CVE-2026-73283CVE-2026-73282CVE-2026-73281CVE-2026-60002+32 more
- Seen asHostnames Shodan has seen pointing at, or presented by, this address.
- www.ofimdostempos.comofimdostempos.com
From Shodan InternetDB, updated weekly.
Details
Network
- IPv4
- 187.84.237.202
- ASNThe autonomous system number of the network that announces this address.
- AS53057
- Operator
- RedeHost Internet Ltda.
- PrefixThe block of addresses announced over BGP that contains this address.
- 187.84.236.0/23
- RPKIWhether a signed record (ROA) authorizes this network to announce this prefix.
- No ROA
- VisibilityHow many bgp.tools peers carry this announcement.
- 2,505 peers
- Registry
- LACNIC
Location
Country level- Country
- Brazil
- Continent
- South America
Registration
RDAP- Registrar
- PDR Ltd. d/b/a PublicDomainRegistry.com
- Registered
- Jan 3, 20179 years ago
- Expires
- Jan 3, 2027in 2 months
- Updated
- Dec 19, 2025
- StatusRegistry flags on the domain, such as locks that stop unauthorized transfers or changes.
- Transfer locked
- DNSSECDNSSEC signs DNS answers so they can't be forged on the way to you.
- Unsigned
- Name servers
- ns148.umbler.inns283.umbler.com.brns534.umbler.comns840.umbler.co.uk
- Registrant
- Redacted for privacy
Jan 3, 201781 days leftJan 3, 2027
Partly protected
There's no DMARC policy, so each receiver decides for itself what to do with mail that fails fabiosp.com's SPF check.
- Receives mail
- Its own servers
- Mail servers
- mx364.umbler.commx128.umbler.inmx783.umbler.com.br+1 more
- SPFLists the servers allowed to send mail for the domain. Receivers check it against the sending server.
- Soft-fails everything else4 of 10 DNS lookups · includes spf.umbler.com
- DMARCTells receivers what to do with mail that fails SPF and DKIM: nothing (none), spam folder (quarantine) or reject.
- Missing
- 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
AI & agents
Open to AI crawlers
robots.txt lets every AI crawler in.
Crawlers
Allows allTrainingSearchOn 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.
- 1,138 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.
- 18 links in 6 sections
- Structured dataschema.org JSON-LD in the page: facts about the site in a form machines read directly.
- Person, Service, WebSite, ProfilePage
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.
HTTPS
Certificate
Valid- Issuer
- Let's Encrypt
- Issuing CA
- YR2
- Covers
- fabiosp.com, www.fabiosp.com
Sep 12, 202658 days leftDec 11, 2026
From Certificate Transparency logs, via Cert Spotter.
Security
- HSTSStrict-Transport-Security makes browsers refuse plain HTTP to this site. Preloaded sites are HTTPS-only even on a first visit.
- Not sent
- 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.
- Not published
Response
The website didn't answer within 9s
Website
Page
Fábio A. Sperotto | Professor, Consultor em Soluções em Sistemas, Automação e IA
Transformo processos manuais em fluxos automatizados e dados em decisões, com n8n, integrações com IA e indicadores de desempenho (KPIs). Dou aulas de Ciência da Computação no IFSC e acompanho profissionais e equipes em projetos web e automações.
- Language
- Brazilian Portuguese
Built with
Nothing recognizable in its headers, DNS or markup.
Versions, rendering and outside codeTech 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.
Styling
- Bootstrap5.2.3Supported
loaded from cdn.jsdelivr.net · 5.3.8 is out
Fonts
- Saira Extra Condensed
from Google Fonts
- Muli
from Google Fonts
Components & icons
- Font Awesome6.3.0
loaded from cdnjs.cloudflare.com
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 HTML1,138 words before any script runs
- HTML
- 34.1 KB
- Scripts
- 4 files3 from other sites
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
- Public CDNsOpen-source packages loaded straight from a public CDN. A floating version (@3, @latest or none) can change under the site without a deploy. Without an integrity attribute, the browser can't tell if the CDN's copy was tampered with.
- font-awesome@6.3.0Integrity checkedbootstrap@5.2.3No integrity checkmustache@4.2.0No integrity check
- Integrity checksSubresource Integrity: the script tag carries a hash of the file, so the browser refuses it if the other site changes it. Analytics and tag manager scripts change by design and can't carry one; pinned library files can.
- 1 of 3 scripts
Adding integrity attributes to those tags makes browsers refuse a tampered copy.