MDLC Synapse: See The Internet Clearly
Signal → Root Cause<br>See The InternetClearly<br>One command center to monitor your sites, APIs, DNS, and certificates.<br>Catch problems before your users do.<br>Example Dashboard<br>330+Edge Cities<br>Avg Check Time<br>99.99%Platform Uptime
//Diagnostic Capabilities<br>Every Layer → Every Signal ≋<br>Diagnostic pillars that isolate root causes across internet infrastructure
Connectivity & Path
TracerouteMTRPacket LossJitter
DNS Intelligence
DNSSECPropagationGeoDNSResolvers
Web & Delivery
HTTP WaterfallSynthetic ChecksRedirectsTTFB
TLS & Certificates
Chain ValidationCipher AuditOCSPExpiry
Email Security
SPFDKIMDMARCBlacklists
Port & Services
Port ScanBannersService IDPresets
WHOIS & Domain Intel
RDAPRegistrarExpirationNameservers
Security Headers
HSTSCSPX-FramePermissions
Monitoring & Alerts<br>Any check becomes a 24/7 monitor<br>Run a diagnostic once, then let Synapse watch it around the clock. We catch the failure, confirm it, and route the alert to wherever your team already works.<br>Alerts delivered to<br>SlackDiscordPagerDutyEmailWebhook
Create AccountSee example dashboard →
Incident<br>14:32:07 UTC<br>api.acme.com is DOWN<br>HTTP 500 · 2 failed checks · Frankfurt + Ashburn
NotifiedSlack·PagerDuty
Recovered after 4m 12s<br>api.acme.com · 200 OK
Multi-Region Monitoring<br>See It From Your Users’ Side<br>Your monitors run on Cloudflare’s global edge, 330+ cities across 120+ countries.<br>Before we alert you, every failure is re-checked from another region, so you catch real regional outages without the false alarms.<br>Multi-region verificationFewer false alarmsCatch regional outages
US East<br>Virginia
US West<br>Oregon
Canada<br>Montreal
Brazil<br>Sao Paulo
UK<br>London
Germany<br>Frankfurt
Netherlands<br>Amsterdam
India<br>Mumbai
Singapore<br>Singapore
Japan<br>Tokyo
Australia<br>Sydney
S. Africa<br>Johannesburg
UAE<br>Dubai
S. Korea<br>Seoul
Chile<br>Santiago
North America<br>Virginia · Oregon · Montreal
Europe<br>London · Frankfurt · Amsterdam
Asia-Pacific<br>Tokyo · Singapore · Sydney
South America<br>Sao Paulo · Santiago
Africa<br>Johannesburg · Cape Town
Middle East<br>Dubai · Tel Aviv
Layer-by-Layer Analysis<br>From Signal to Root Cause<br>Every check is broken down by layer: DNS, TCP, TLS, and application response, each one timed and validated on its own.<br>So when something is slow or broken, you see the exact layer that caused it, not just that the site is down.
Example analysis with sample data
DNSResolution<br>23ms
A record resolved via Cloudflare 1.1.1.1: 4 nameservers queried, DNSSEC valid
NetworkTCP Connect<br>18ms
TCP handshake to 104.26.10.78:443, 12 hops, 0% packet loss, MTU 1500
TLSHandshake<br>32ms
TLS 1.3 / AEAD-AES256-GCM, cert valid, chain complete, OCSP stapled
ApplicationTTFB<br>145ms
HTTP/2 200 OK, Server: cloudflare, CF-Cache-Status: HIT, 12.4 KB response
Latency Breakdown<br>Total 218ms, all layers healthy. TTFB is 66% of total latency, pointing at origin server response.
Request Waterfall<br>DNS
23ms<br>Network
18ms<br>TLS
32ms<br>Application
145ms<br>Total
218ms
//Free Tools · No Signup<br>Run any check free<br>30+ diagnostic tools, no account required. Run one now, then let Synapse monitor it 24/7.
SSL Certificate Checker
Issuer, chain, and expiry for any site.
DNS Propagation Checker
Track a record across 20+ global locations.
DMARC Checker
Validate and build your DMARC policy.
SPF Checker
Validate and generate a correct SPF record.
Blacklist / RBL Checker
Check an IP or domain against major blacklists.
Security Headers
Grade CSP, HSTS, and other security headers.
DNS Lookup
A, AAAA, CNAME, MX, TXT, and NS records.
MX Lookup
Find the mail servers for any domain.
Browse all 30+ free tools
Built to Scale With You<br>One plan. Every monitor type included. Scale up whenever you need more.
Pro<br>$29/month<br>Everything included. Pay only for scale.
50 monitors included<br>50 continuous monitors<br>Every monitor type: uptime, SSL & domain expiry, email auth, blacklist, DNS change<br>Root-cause analysis on every failure (DNS, TCP, TLS, app)<br>Multi-region verification for fewer false alarms<br>60-second checks<br>13-month data retention<br>Every alert channel: Slack, Discord, Webhook, PagerDuty<br>Status pages, team seats & API access<br>Scale with +25 monitor packs at $25<br>Get Access
Need more monitors?<br>Add a pack whenever you need more capacity
$25/monthper +25 monitors