Location
North Bergen, United States
Within about 20 km
Domain
lobste.rs
Hosted on DigitalOcean in North Bergen.
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.
AS14061DigitalOcean
DigitalOcean · North Bergen
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 valid68.183.96.0/20
Seen by 3,135 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
- AS14061DigitalOcean
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
Alobste.rs68.183.100.954 min
AAAAlobste.rs2604:a880:400:d1:0:2:16bc:d00144 min
NSlobste.rsns1.dnsimple.com1 hr
NSlobste.rsns2.dnsimple.com1 hr
NSlobste.rsns3.dnsimple.com1 hr
NSlobste.rsns4.dnsimple.com1 hr
MXlobste.rs10 lobste.rs1 hr
TXTlobste.rs"v=spf1 a mx ip4:68.183.100.95 a:lobste.rs -all"1 hr
TXT_dmarc.lobste.rs"v=DMARC1;p=reject;rua=mailto:peter@push.cx"1 hr
Protected from spoofing
Mail that fails its checks is rejected under lobste.rs's DMARC policy, so forged mail doesn't reach inboxes.
- Receives mail
- Its own servers
- Mail servers
- lobste.rs
- SPFLists the servers allowed to send mail for the domain. Receivers check it against the sending server.
- Rejects everything else3 of 10 DNS lookups
- DMARCTells receivers what to do with mail that fails SPF and DKIM: nothing (none), spam folder (quarantine) or reject.
- Rejectsends 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
Exposure
Open ports
6 open- 22SSH
- 25SMTP
- 80HTTP
- 443HTTPS
- 9000HTTP alt
- 9090Prometheus
- Software
- CaddyGoRubyPostfixOpenSSH 9.6p1RailsUbuntu
- Tags
- CloudSTARTTLS
- Seen asHostnames Shodan has seen pointing at, or presented by, this address.
- lobste.rs
From Shodan InternetDB, updated weekly.
HTTPS
Certificate
Valid- Issuer
- Let's Encrypt
- Issuing CA
- YE1
- Covers
- lobste.rs
- Also validOther unexpired certificates for this name, found in Certificate Transparency logs.
- 1 more certificate
Sep 29, 202676 days leftDec 28, 2026
From Certificate Transparency logs, via Cert Spotter.
Security
D- HSTSStrict-Transport-Security makes browsers refuse plain HTTP to this site. Preloaded sites are HTTPS-only even on a first visit.
- 1 yearRemoved from preload
- 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.
- Available
- 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.
- peter@push.cx
Security headers 2 of 7
- HSTSpresent
- CSPpresent
- Framingmissing
- No sniffingmissing
- Referrermissing
- Permissionsmissing
- Isolationmissing
Response
200 OK330 ms from CMHDNS lookup3 ms
200 lobste.rs330 ms
DNSConnect (TCP + TLS)Waiting for the replyFrom Cloudflare's CMH data center
Website
Page
Lobsters
A computing-focused community centered around link aggregation and discussion.
- Language
- English
- Theme color
- #AC130D
Built with
- CloudFrom the provider's published address ranges.
- DigitalOcean · North Bergen
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
- DigitalOcean · North Bergen
DigitalOcean address range
Backend
- Ruby on Rails
csrf-param meta tag
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.
- Rendered on each requestRuby on Rails renders it on request
- HTML
- 58.3 KB · sent gzip-compressed
- Scripts
- 1 fileall 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.
The HTML loads no scripts from other sites.
Response headers
- alt-svc
- h3=":443"; ma=2592000
- content-encoding
- gzip
- content-security-policy
- default-src 'none'; img-src 'self' data:; script-src 'self' 'inline-speculation-rules'; style-src 'self' 'unsafe-inline'
- content-type
- text/html; charset=utf-8
- etag
- "dm3wn35uupjr1a1z-gzip"
- last-modified
- Tue, 13 Oct 2026 18:00:00 GMT
- strict-transport-security
- max-age=31536000
- vary
- Accept-Encoding
- date
- Tue, 13 Oct 2026 18:00:06 GMT
- connection
- close
- transfer-encoding
- chunked
Details
Network
- IPv4
- 68.183.100.95
- Reverse DNSThe hostname this address points back to (its PTR record).
- lobste.rs
- ASNThe autonomous system number of the network that announces this address.
- AS14061
- Operator
- DigitalOcean LLC
- HostingFrom the provider's own published list of its address ranges.
- DigitalOceanNorth Bergen
- PrefixThe block of addresses announced over BGP that contains this address.
- 68.183.96.0/20
- RPKIWhether a signed record (ROA) authorizes this network to announce this prefix.
- Valid
- VisibilityHow many bgp.tools peers carry this announcement.
- 3,135 peers
- Type
- Content
- Registry
- ARIN
Location
- Country
- United States
- Region
- New Jersey
- City
- North Bergen
- Coordinates
- 40.7964° N, 74.0203° W
- Accuracy
- Within about 20 km
- Time zone
- America/New_YorkUTC-4
- Local time
- 14:00
- Continent
- North America
Registration
WHOIS- PopularityCloudflare Radar's ranking of domains by how often 1.1.1.1 users look them up.
- Top 100,000
- Registrar
- Mainstream Public Cloud Services d.o.o.
- Registered
- Dec 13, 201114 years ago
- Expires
- Dec 13, 2029in 3 years
- Updated
- Mar 17, 2025
- StatusRegistry flags on the domain, such as locks that stop unauthorized transfers or changes.
- Active
- DNSSECDNSSEC signs DNS answers so they can't be forged on the way to you.
- Unsigned
- Name servers
- ns1.dnsimple.comns2.dnsimple.comns3.dnsimple.comns4.dnsimple.com
- Registrant
- Individual
Dec 13, 20111,157 days leftDec 13, 2029
AI & agents
Closed to AI crawlers
robots.txt turns away 22 AI crawlers, including the ones behind ChatGPT search, Claude and Perplexity. AI Overviews, Copilot and Siri can still cite it.
Crawlers
Blocks 22 of 25TrainingSearchOn 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.
OpenAIGPTBotblockedOAI-SearchBotblockedChatGPT-Userblocked
AnthropicClaudeBotblockedClaude-SearchBotblockedClaude-Userblocked
GoogleGoogle-ExtendedblockedGooglebotallowed—
Microsoft—bingbotallowed—
AppleApplebot-ExtendedblockedApplebotallowed—
Perplexity—PerplexityBotblockedPerplexity-Userblocked
MetaMeta-ExternalAgentblockedMeta-WebIndexerblockedMeta-ExternalFetcherblocked
AmazonAmazonbotblockedAmzn-SearchBotblockedAmzn-Userblocked
MistralMistralAI-TrainingblockedMistralAI-IndexblockedMistralAI-Userblocked
OthersCCBotblockedBytespiderblockedDuckAssistBotblocked
- 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.
- AI OverviewsCopilotSiri
- Kept out of
- ChatGPT search: robots.txt blocks OAI-SearchBotClaude: robots.txt blocks Claude-SearchBotPerplexity: robots.txt blocks PerplexityBotGemini: robots.txt blocks Google-ExtendedMeta AI: robots.txt blocks Meta-WebIndexer
Content signals
Lines in robots.txt (Cloudflare's Content Signals Policy) saying whether pages may be used for search, as input to AI answers (ai-input) and for AI
training. No major AI company has said it follows them.
ai-input=noai-train=nosearch=yesFront page
Directives in the front page's robots meta tags or X-Robots-Tag header. noindex keeps it out of search, nosnippet out of Google's AI Overviews and
Siri's answers, and noarchive out of Copilot's.
noainoimageai
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.
- 713 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.
- Not published
- 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.