Location
North Charleston, United States
Within about 20 km
Domain
lektra.com
Hosted on Google Cloud in South Carolina (us-east1).
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.
AS43515Google Ireland
Google Cloud · South Carolina
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 valid35.211.0.0/16
Seen by 2,394 peers · several origins
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
- AS43515Google Ireland
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
Alektra.com35.211.100.2315 min
NSlektra.commacy.ns.cloudflare.com1 day
NSlektra.comsonny.ns.cloudflare.com1 day
MXlektra.com1 aspmx.l.google.com1 hr
MXlektra.com10 alt3.aspmx.l.google.com1 hr
MXlektra.com10 alt4.aspmx.l.google.com1 hr
MXlektra.com5 alt1.aspmx.l.google.com1 hr
MXlektra.com5 alt2.aspmx.l.google.com1 hr
TXTlektra.com"brevo-code:e9deffae67c93b6c0f388d0c44ae1181"5 min
TXTlektra.com"google-site-verification=5CCKLaIuXKafDkjJ2kpuBjqDxp0io41w5kumfQw3ymI"5 min
TXTlektra.com"google-site-verification=OZtq3bZu7VGPu5cmi5-jjYETDYdZjHm-79IroDjZI9U"5 min
TXTlektra.com"hosting-site=ava-cloud-prod"5 min
TXTlektra.com"mailerlite-domain-verification=9b7c78b5fb5348e7ce6f0ad82a32d8849d8df706"5 min
TXTlektra.com"v=spf1 a mx include:_spf.mlsend.com include:_spf.google.com ~all"5 min
TXT_dmarc.lektra.com"v=DMARC1; p=none; rua=mailto:58dc980365e04bbc83328d0a800c4657@dmarc-reports.cloudflare.net,mailto:rua@dmarc.brevo.com"1 hr
Partly protected
DMARC only monitors (p=none): forged mail claiming to be from lektra.com still reaches inboxes.
- Receives mail
- Google Workspace
- Mail servers
- aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.com+2 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.mlsend.com, _spf.google.com
- DMARCTells receivers what to do with mail that fails SPF and DKIM: nothing (none), spam folder (quarantine) or reject.
- Monitor onlysends 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
2 open- 80HTTP
- 443HTTPS
- Tags
- CloudSelf-signed certificate
- Seen asHostnames Shodan has seen pointing at, or presented by, this address.
- 231.100.211.35.bc.googleusercontent.com
From Shodan InternetDB, updated weekly.
Website
Page
Lektra - Powering Intelligence
Lektra delivers solar-powered GPU cloud compute. NVIDIA H200 and RTX PRO 6000 instances at a fraction of the cost. No egress fees, no lock-in.
- Language
- English
Built with
- CloudFrom the provider's published address ranges.
- Google Cloud · South Carolinaus-east1
- Framework
- Next.jsx-powered-by header
Details
Network
- IPv4
- 35.211.100.231
- Reverse DNSThe hostname this address points back to (its PTR record).
- 231.100.211.35.bc.googleusercontent.com
- ASNThe autonomous system number of the network that announces this address.
- AS43515
- Operator
- Google Ireland Limited
- HostingFrom the provider's own published list of its address ranges.
- Google CloudSouth Carolina (us-east1)
- PrefixThe block of addresses announced over BGP that contains this address.
- 35.211.0.0/16
- RPKIWhether a signed record (ROA) authorizes this network to announce this prefix.
- Valid
- VisibilityHow many bgp.tools peers carry this announcement.
- 2,394 peers
- Origins
- Announced by more than one network
- Registry
- ARIN
Location
- Country
- United States
- Region
- South Carolina
- City
- North Charleston
- Coordinates
- 32.8608° N, 79.9746° W
- Accuracy
- Within about 20 km
- Time zone
- America/New_YorkUTC-4
- Local time
- 12:46
- Continent
- North America
Registration
RDAP- Registrar
- GoDaddy.com, LLC
- Registered
- Dec 13, 200322 years ago
- Expires
- Dec 13, 2027next year
- Updated
- Mar 11, 2025
- StatusRegistry flags on the domain, such as locks that stop unauthorized transfers or changes.
- Delete lockedclient renew prohibitedTransfer lockedUpdate locked
- DNSSECDNSSEC signs DNS answers so they can't be forged on the way to you.
- Unsigned
- Name servers
- macy.ns.cloudflare.comsonny.ns.cloudflare.com
- Registrant
- Redacted for privacy
Dec 13, 2003428 days leftDec 13, 2027
HTTPS
Certificate
Valid- Issuer
- Let's Encrypt
- Issuing CA
- YE2
- Covers
- *.lektra.com, lektra.com
- Also validOther unexpired certificates for this name, found in Certificate Transparency logs.
- 4 more certificates
Oct 2, 202680 days leftDec 31, 2026
From Certificate Transparency logs, via Cert Spotter.
Security
F- HSTSStrict-Transport-Security makes browsers refuse plain HTTP to this site. Preloaded sites are HTTPS-only even on a first visit.
- 1 year · with subdomains
- 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.
- 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
Security headers 1 of 7
- HSTSpresent
- CSPmissing
- Framingmissing
- No sniffingmissing
- Referrermissing
- Permissionsmissing
- Isolationmissing
Response
200 OK182 ms from CMHDNS lookup29 ms
200 lektra.com182 ms
DNSConnect (TCP + TLS)Waiting for the replyFrom Cloudflare's CMH data center
Response headers
- date
- Mon, 12 Oct 2026 16:46:05 GMT
- content-type
- text/html; charset=utf-8
- transfer-encoding
- chunked
- connection
- close
- vary
- rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, Accept-Encoding
- link
- </index.md>; rel="alternate"; type="text/markdown", </.well-known/api-catalog>; rel="api-catalog"; type="application/linkset+json"
- x-nextjs-cache
- HIT
- x-nextjs-prerender
- 1
- x-nextjs-prerender
- 1
- x-nextjs-stale-time
- 300
- x-powered-by
- Next.js
- cache-control
- s-maxage=31536000
- etag
- "pm6nhjcpl2173d"
- content-encoding
- gzip
- strict-transport-security
- max-age=31536000; includeSubDomains
AI & agents
Open to AI crawlers
robots.txt lets every AI crawler in. Agents that ask for Markdown get 1.9 KB instead of 54.6 KB of HTML, and it offers an API catalog.
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
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-train=yessearch=yesai-input=yes
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.
- 549 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.
- On request1.9 KB, 28× smaller
- llms.txtA Markdown file listing a site's key pages for AI tools. Coding agents read it; search crawlers mostly don't.
- 14 links in 7 sectionsllms-full.txt too (3.2 KB)
- Structured dataschema.org JSON-LD in the page: facts about the site in a form machines read directly.
- Organization, WebSite
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/.
- APIsAn API catalog (RFC 9727, at /.well-known/api-catalog) lists a site's APIs and links to their machine-readable descriptions, usually OpenAPI.
- 1 in its API catalogcompute-api.lektra.ai · OpenAPI
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
- Google Cloud · South Carolinaus-east1
Google Cloud address range
Framework
- Next.jsApp Router
x-powered-by header
UI
- React
Next.js renders with React
Styling
- styled-components6.1.14
data-styled style tag
Fonts
- Gilroy
self-hosted font
- Archia
self-hosted font
Build
- Turbopack
/_next/static/chunks/turbopack-0f4l-8zjopnd5.js
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.
- Prerendered, refreshed in the backgroundx-nextjs-cache: HITApp Router
- Edge cacheWhether a CDN or proxy answered heade.rs's request from its cache, and how long ago that copy was made (the Age header).
- Served from cacheNext.js
- Cache-Control
- s-maxage=31536000
- HTML
- 54.6 KB · sent gzip-compressed
- Data for scriptsData the server writes into the HTML so JavaScript can pick up where the server left off (hydration). Browsers download and parse all of it before the page responds, so large payloads slow pages down, even when the page looks ready.
- React Server Components 17.7 KB · 32% of the HTML
- Scripts
- 10 files · 2 inlineall from this site
- Render-blockingPlain scripts in the page's head, without async, defer or type=module. The browser shows nothing until each one has downloaded and run.
- 1 script
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.
- Tag manager
- Google Tag Manager