Let's Encrypt Network

Detection Information

The following page provides details on IP networks and domains used by Let's Encrypt. You can use this information to manage or block Let's Encrypt apps, web access and more.


Let's Encrypt - Logo

Let’s Encrypt is a free, automated, and open certificate authority brought to you by the non-profit Internet Security Research Group (ISRG).



External Resources

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Primary Domains

  • lencr.org
  • letsencrypt.org

Platform Domains

Logo Akamai lencr.edgesuite.net and 1 more

Protocols and Port Statistics

Protocol Port Flow Percent
HTTP TCP 80 92%
HTTPS TCP 443 8%

Networks and IPs

Detected Networks

IP Shared
and 8 more

Cloud Hosting Networks

IP Cloud Host Shared Logo DigitalOcean Logo DigitalOcean Logo DigitalOcean
Summary # of IPs
Logo DigitalOcean 3

Content Delivery Networks - CDNs

IP CDN Shared - Logo Akamai - Logo Akamai - Logo Akamai - Logo Akamai - Logo CloudFlare
and 1415 more
Summary # of IPs
Logo Akamai 1419
Logo CloudFlare 1

Data Feed API

The data shown here is also available via our Netify Informatics API. Please contact us for subscription details.

"data": {
    "tag": "netify.twitter",
    "label": "Twitter",
    "shared_ip_detected": true,
    "category": {
        "id": 24,
        "tag": "social-media",
        "label": "Social Media"
    "network_list": [
            "network": "",
            "version": "ipv4",
            "detection_type": "ai",
            "shared": false,
            "platform": {
                "id": 1002,
                "tag": "akamai",
                "label": "Akamai",
                "category": {
                    "id": 2,
                    "tag": "cdn",
                    "label": "CDN"

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