Let's Encrypt
Let's Encrypt Application
Application Information
The following page provides details on domains, networks, IPs, hosting services, and content delivery networks used by Let's Encrypt.
Description
Let’s Encrypt is a free, automated, and open certificate authority brought to you by the non-profit Internet Security Research Group (ISRG).
| Category | Technology |
| Web Link | Let's Encrypt - Home Page |
Network Intelligence
The network data shown here is also available via the Netify Data Feed API. We provide network intelligence to help deliver better digital experiences to end users and businesses.
Domains
Primary Domains
Platform Domains
 CloudFlare
|
{hidden}.pacloudflare.com | |
 Akamai
|
{hidden}.edgesuite.net | and 1 more |
 Discourse
|
{hidden}.hosted-by-discourse.com |
SaaS - Software-as-a-Service
Applications often use various third party platforms for providing authentication, advertisements, customer tracking, cybersecurity, e-mail services and more. The Software-as-a-Service (SaaS) platforms used by Let's Encrypt are summarized below by geographical points-of-presence (PoP).
Each PoP can host many IPs to deliver an application. A sample IP is provided. Typically, the IP addresses on Software-as-a-Service platforms are shared by multiple applications.
| SaaS | # of IPs |
|---|---|
Email Studio
|
1 |
LiveIntent
|
1 |
|
Discourse
|
1 |
| Service | Category | PoP | Location | Sample IP | IPs |
|---|---|---|---|---|---|
|
LiveIntent
|
Advertiser | Tokyo | Japan | 184.26.248.133 | 1 IP |
|
Discourse
|
Social Media | Core Network | United States | 184.105.99.43 | 1 IP |
|
Email Studio
|
Advertiser | London | United Kingdom | 104.82.116.198 | 1 IP |
Hosting
Hosting vendors like AWS and Microsoft Azure provide cloud-based computing and network resources to deliver applications. The hosting platforms used by Let's Encrypt are summarized below by geographical points-of-presence (PoP).
Each PoP can host many IPs to deliver an application. A sample IP is provided.
| Cloud Hosts | # of IPs |
|---|---|
Netlify
|
5 |
Amazon AWS
|
1 |
| Hosting Platform | Network | PoP | Location | Sample IP | IPs |
|---|---|---|---|---|---|
|
Amazon AWS
|
Amazon AWS
|
US West (N. California) | United States | 52.9.173.94 | 1 IP |
|
Netlify
|
Amazon AWS
|
Asia Pacific (Sydney) | Australia | 3.24.66.78 | 1 IP |
|
Netlify
|
Amazon AWS
|
Europe (Frankfurt) | Germany | 3.70.101.28 | 3 IPs |
|
Netlify
|
Amazon AWS
|
US East (N. Virginia) | United States | 35.169.59.174 | 1 IP |
Content Delivery Networks - CDNs
In order to get information to end users more quickly, many applications are distributed from multiple geographical points-of-presence (PoPs) using Content Delivery Networks (CDNs).
Each PoP can host many IPs to deliver an application. A sample IP is provided.
Take special note of CDNs that use Anycast technology. Anycast makes it possible to route a single IP address to a variety of different geographic locations. In other words, one global Anycast IP is hosted in multiple geographic locations.
| CDNs | # of IPs |
|---|---|
|
Akamai
|
2240 |
|
CloudFlare
|
5 |
| Service | Network | PoP | Location | Sample IP | IPs |
|---|---|---|---|---|---|
|
CloudFlare
|
CloudFlare
|
Core Network | United States | 23.178.112.203 | 3 IPs |
|
CloudFlare
|
CloudFlare
|
Anycast | Global | 172.65.32.248 | 2 IPs |
|
Akamai
|
ASN AS4775 | Core Network | Philippines | 23.8.192.173 | 17 IPs |
|
Akamai
|
Akamai
|
Marseille | France | 23.55.144.202 | 5 IPs |
|
Akamai
|
Akamai
|
Isando | South Africa | 104.75.206.77 | 20 IPs |
|
Akamai
|
Akamai
|
Helsinki | Finland | 184.51.233.5 | 2 IPs |
|
Akamai
|
Akamai
|
Warsaw | Poland | 23.64.232.130 | 12 IPs |
|
Akamai
|
Akamai
|
Cape Town | South Africa | 2.16.199.49 | 9 IPs |
|
Akamai
|
Akamai
|
Frankfurt | Germany | 23.37.41.57 | 54 IPs |
|
Akamai
|
Akamai
|
Chicago | United States | 2.17.95.148 | 184 IPs |
|
Akamai
|
Akamai
|
Milano | Italy | 2.20.237.119 | 87 IPs |
|
Akamai
|
Akamai
|
London | United Kingdom | 2.19.145.140 | 61 IPs |
|
Akamai
|
Akamai
|
Vienna | Austria | 23.192.94.59 | 11 IPs |
|
Akamai
|
Akamai
|
Amsterdam | Netherlands | 23.5.172.116 | 8 IPs |
|
Akamai
|
Akamai
|
Paris | France | 2.18.132.199 | 13 IPs |
|
Akamai
|
Akamai
|
Istanbul | Turkey | 2.18.201.128 | 2 IPs |
|
Akamai
|
Akamai
|
Palermo | Italy | 2.19.26.63 | 2 IPs |
|
Akamai
|
Akamai
|
Athens | Greece | 104.103.236.172 | 4 IPs |
|
Akamai
|
Akamai
|
Seattle | United States | 2.19.142.66 | 50 IPs |
|
Akamai
|
Akamai
|
Madrid | Spain | 23.39.78.66 | 59 IPs |
|
Akamai
|
Akamai
|
Johannesburg | South Africa | 23.42.14.59 | 6 IPs |
|
Akamai
|
Akamai
|
Core Network | Germany | 2.21.21.24 | 2 IPs |
|
Akamai
|
Akamai
|
Glattbrugg | Switzerland | 104.77.33.246 | 9 IPs |
|
Akamai
|
Akamai
|
Copenhagen | Denmark | 2.21.47.128 | 3 IPs |
|
Akamai
|
Akamai
|
Stockholm | Sweden | 2.21.200.181 | 7 IPs |
|
Akamai
|
Akamai
|
Ashburn | United States | 23.0.18.191 | 113 IPs |
|
Akamai
|
Akamai
|
Munich | Germany | 23.0.93.17 | 15 IPs |
|
Akamai
|
Akamai
|
Sydney | Australia | 23.0.110.114 | 80 IPs |
|
Akamai
|
Akamai
|
Rome | Italy | 23.1.70.102 | 4 IPs |
|
Akamai
|
Akamai
|
Fortaleza | Brazil | 23.1.84.7 | 4 IPs |
|
Akamai
|
Akamai
|
Core Network | United States | 23.1.201.23 | 79 IPs |
|
Akamai
|
Akamai
|
Buenos Aires | Argentina | 23.1.211.165 | 18 IPs |
|
Akamai
|
Akamai
|
Los Angeles | United States | 23.6.179.41 | 82 IPs |
|
Akamai
|
Akamai
|
Hong Kong | Hong Kong | 23.41.64.215 | 15 IPs |
|
Akamai
|
Akamai
|
Sao Paulo | Brazil | 23.2.189.191 | 23 IPs |
|
Akamai
|
Akamai
|
Schiphol | Netherlands | 23.2.228.139 | 7 IPs |
|
Akamai
|
Akamai
|
Sterling | United States | 23.6.75.193 | 8 IPs |
|
Akamai
|
Akamai
|
Mexico City | Mexico | 23.3.178.131 | 7 IPs |
|
Akamai
|
Akamai
|
Dallas | United States | 23.4.48.51 | 90 IPs |
|
Akamai
|
Akamai
|
Rio de Janeiro | Brazil | 23.5.30.134 | 3 IPs |
|
Akamai
|
Akamai
|
Toronto | Canada | 23.5.101.162 | 33 IPs |
|
Akamai
|
Akamai
|
Atlanta | United States | 96.17.39.167 | 61 IPs |
|
Akamai
|
Akamai
|
Santa Clara | United States | 23.56.118.188 | 49 IPs |
|
Akamai
|
Akamai
|
Bogota | Colombia | 23.7.14.126 | 8 IPs |
|
Akamai
|
Akamai
|
Lithia Springs | United States | 23.7.38.43 | 8 IPs |
|
Akamai
|
Akamai
|
Mount Prospect | United States | 23.7.111.230 | 22 IPs |
|
Akamai
|
Akamai
|
El Segundo | United States | 23.7.131.215 | 56 IPs |
|
Akamai
|
Akamai
|
Mumbai | India | 23.9.240.127 | 8 IPs |
|
Akamai
|
Akamai
|
New Delhi | India | 23.10.224.88 | 12 IPs |
|
Akamai
|
Akamai
|
Jakarta | Indonesia | 23.11.48.10 | 1 IP |
|
Akamai
|
Akamai
|
Pak Kret | Thailand | 23.11.148.177 | 2 IPs |
|
Akamai
|
Akamai
|
Brisbane | Australia | 23.12.60.59 | 8 IPs |
|
Akamai
|
Akamai
|
Santiago | Chile | 23.12.118.18 | 3 IPs |
|
Akamai
|
Akamai
|
Core Network | Sweden | 23.13.248.160 | 5 IPs |
|
Akamai
|
Akamai
|
New York | United States | 23.14.153.114 | 11 IPs |
|
Akamai
|
Akamai
|
Cyberjaya | Malaysia | 23.15.18.116 | 1 IP |
|
Akamai
|
Akamai
|
Miami | United States | 23.15.51.138 | 152 IPs |
|
Akamai
|
Akamai
|
Queretaro | Mexico | 23.15.168.226 | 8 IPs |
|
Akamai
|
Akamai
|
Core Network | Indonesia | 23.32.227.219 | 1 IP |
|
Akamai
|
Akamai
|
Piscataway | United States | 23.50.66.96 | 23 IPs |
|
Akamai
|
Akamai
|
Boston | United States | 23.34.92.85 | 7 IPs |
|
Akamai
|
Akamai
|
Kolkata | India | 23.36.27.185 | 1 IP |
|
Akamai
|
Akamai
|
Melbourne | Australia | 23.37.141.63 | 31 IPs |
|
Akamai
|
Akamai
|
Tokyo | Japan | 23.37.146.226 | 9 IPs |
|
Akamai
|
Akamai
|
Fujairah | United Arab Emirates | 23.37.176.227 | 1 IP |
|
Akamai
|
Akamai
|
Norfolk | United States | 23.38.126.17 | 3 IPs |
|
Akamai
|
Akamai
|
Philadelphia | United States | 23.208.41.90 | 4 IPs |
|
Akamai
|
Akamai
|
Core Network | Australia | 23.53.135.197 | 5 IPs |
|
Akamai
|
Akamai
|
Singapore | Singapore | 23.39.15.207 | 47 IPs |
|
Akamai
|
Akamai
|
Secaucus | United States | 23.192.6.235 | 13 IPs |
|
Akamai
|
Akamai
|
Dublin | Ireland | 23.40.221.102 | 2 IPs |
|
Akamai
|
Akamai
|
San Jose | United States | 23.41.39.245 | 52 IPs |
|
Akamai
|
Akamai
|
T'ai-pei | Taiwan | 23.41.132.104 | 7 IPs |
|
Akamai
|
Akamai
|
Perth | Australia | 23.42.238.2 | 15 IPs |
|
Akamai
|
Akamai
|
Houston | United States | 23.195.222.59 | 13 IPs |
|
Akamai
|
Akamai
|
Core Network | Philippines | 23.46.99.60 | 1 IP |
|
Akamai
|
Akamai
|
Osaka | Japan | 23.47.133.157 | 3 IPs |
|
Akamai
|
Akamai
|
Lisbon | Portugal | 23.47.188.32 | 7 IPs |
|
Akamai
|
Akamai
|
Haarlem | Netherlands | 23.49.30.152 | 1 IP |
|
Akamai
|
Akamai
|
Core Network | India | 23.49.78.32 | 1 IP |
|
Akamai
|
Akamai
|
Richmond Hill | Canada | 23.49.87.92 | 1 IP |
|
Akamai
|
Akamai
|
Core Network | South Korea | 23.50.121.138 | 3 IPs |
|
Akamai
|
Akamai
|
Newark | United States | 23.54.161.43 | 3 IPs |
|
Akamai
|
Akamai
|
Adelaide | Australia | 23.215.139.214 | 9 IPs |
|
Akamai
|
Akamai
|
Tempe | United States | 23.55.241.138 | 10 IPs |
|
Akamai
|
Akamai
|
Montreal | Canada | 23.58.187.118 | 6 IPs |
|
Akamai
|
Akamai
|
Core Network | Japan | 23.59.6.33 | 3 IPs |
|
Akamai
|
Akamai
|
Vancouver | Canada | 69.192.82.184 | 6 IPs |
|
Akamai
|
Akamai
|
Marietta | United States | 23.79.36.142 | 11 IPs |
|
Akamai
|
Akamai
|
Centurion | South Africa | 23.60.189.135 | 1 IP |
|
Akamai
|
Akamai
|
Dusseldorf | Germany | 23.60.200.134 | 2 IPs |
|
Akamai
|
Akamai
|
Nagpur | India | 23.62.3.141 | 1 IP |
|
Akamai
|
Akamai
|
Kuala Lumpur | Malaysia | 23.199.133.166 | 3 IPs |
|
Akamai
|
Akamai
|
Seoul | South Korea | 23.62.233.56 | 3 IPs |
|
Akamai
|
Akamai
|
McAllen | United States | 23.63.230.133 | 4 IPs |
|
Akamai
|
Akamai
|
Irving | United States | 23.64.171.218 | 17 IPs |
|
Akamai
|
Akamai
|
Core Network | France | 104.126.234.197 | 3 IPs |
|
Akamai
|
Akamai
|
Core Network | United Kingdom | 23.72.53.127 | 7 IPs |
|
Akamai
|
Akamai
|
Core Network | Brazil | 23.74.193.47 | 3 IPs |
|
Akamai
|
Akamai
|
Core Network | Hong Kong | 23.74.252.111 | 9 IPs |
|
Akamai
|
Akamai
|
Minneapolis | United States | 23.207.70.134 | 13 IPs |
|
Akamai
|
Akamai
|
Porto Alegre | Brazil | 23.77.109.209 | 2 IPs |
|
Akamai
|
Akamai
|
Core Network | Canada | 23.78.76.170 | 2 IPs |
|
Akamai
|
Akamai
|
Cleveland | United States | 23.193.194.81 | 9 IPs |
|
Akamai
|
Akamai
|
Dubai | United Arab Emirates | 23.194.192.11 | 4 IPs |
|
Akamai
|
Akamai
|
Hyderabad | India | 23.205.216.18 | 1 IP |
|
Akamai
|
Akamai
|
Jammu | India | 23.206.189.9 | 3 IPs |
|
Akamai
|
Akamai
|
Ancol | Indonesia | 23.209.207.212 | 1 IP |
|
Akamai
|
Akamai
|
Bangalore | India | 23.213.110.130 | 2 IPs |
|
Akamai
|
Akamai
|
Lucknow | India | 23.215.215.8 | 2 IPs |
|
Akamai
|
Akamai
|
Auckland | New Zealand | 104.113.137.187 | 2 IPs |
|
Akamai
|
Akamai
|
Chachoengsao | Thailand | 23.221.89.47 | 1 IP |
|
Akamai
|
Akamai
|
Chennai | India | 184.50.19.77 | 6 IPs |
|
Akamai
|
Akamai
|
Manchester | United Kingdom | 95.101.254.137 | 1 IP |
|
Akamai
|
Akamai
|
Prague | Czech Republic | 104.64.126.73 | 1 IP |
|
Akamai
|
Akamai
|
Brussels | Belgium | 104.68.78.9 | 4 IPs |
|
Akamai
|
Akamai
|
Pittsburgh | United States | 104.70.247.195 | 2 IPs |
|
Akamai
|
Akamai
|
Bucharest | Romania | 104.76.220.193 | 2 IPs |
|
Akamai
|
Akamai
|
Tel Aviv | Israel | 104.79.215.20 | 1 IP |
|
Akamai
|
Akamai
|
Core Network | Taiwan | 104.94.40.217 | 3 IPs |
|
Akamai
|
Akamai
|
Las Vegas | United States | 104.103.180.98 | 3 IPs |
|
Akamai
|
Akamai
|
Oslo | Norway | 104.110.13.236 | 1 IP |
|
Akamai
|
Akamai
|
Surabaya | Indonesia | 104.118.106.50 | 1 IP |
|
Akamai
|
Akamai
|
Core Network | Singapore | 118.215.113.124 | 2 IPs |
|
Akamai
|
Akamai
|
Rancho Cordova | United States | 184.27.199.48 | 3 IPs |
|
Akamai
|
Akamai
|
Hamburg | Germany | 184.51.73.230 | 1 IP |
|
Akamai
|
Akamai
|
Brasilia | Brazil | 2 IPs | |
|
Akamai
|
Arelion
|
Core Network | Sweden | 2.23.143.200 | 1 IP |
|
Akamai
|
Arelion
|
Helsinki | Finland | 62.115.253.187 | 4 IPs |
|
Akamai
|
Telefonica
|
Madrid | Spain | 5.255.145.106 | 2 IPs |
|
Akamai
|
PLDT
|
Core Network | Philippines | 23.8.221.107 | 5 IPs |
|
Akamai
|
Cox
|
Las Vegas | United States | 23.37.230.153 | 6 IPs |
|
Akamai
|
Cox
|
Core Network | United States | 68.106.122.16 | 2 IPs |
|
Akamai
|
Cox
|
Kansas City | United States | 8 IPs | |
|
Akamai
|
ASN AS9829 | Core Network | India | 23.60.169.11 | 3 IPs |
|
Akamai
|
Xfinity
|
Santa Clara | United States | 23.197.50.27 | 16 IPs |
|
Akamai
|
ASN AS12400 | Core Network | Israel | 23.221.158.82 | 1 IP |
|
Akamai
|
Shaw
|
Vancouver | Canada | 24.244.22.24 | 1 IP |
|
Akamai
|
ASN AS58511 | Core Network | Australia | 43.225.35.74 | 2 IPs |
|
Akamai
|
Vodafone
|
Core Network | Spain | 46.24.126.82 | 17 IPs |
|
Akamai
|
Jio
|
Mumbai | India | 49.44.118.216 | 2 IPs |
|
Akamai
|
Jio
|
Core Network | India | 49.44.150.72 | 4 IPs |
|
Akamai
|
Telstra
|
Sydney | Australia | 61.9.193.159 | 8 IPs |
|
Akamai
|
Telstra
|
Melbourne | Australia | 149.135.83.121 | 2 IPs |
|
Akamai
|
ASN AS29049 | Core Network | Azerbaijan | 62.212.253.19 | 2 IPs |
|
Akamai
|
Rogers
|
Mississauga | Canada | 72.136.196.129 | 1 IP |
|
Akamai
|
Rogers
|
Don Mills | Canada | 72.136.197.65 | 2 IPs |
|
Akamai
|
ASN AS35047 | Core Network | Albania | 77.242.31.230 | 2 IPs |
|
Akamai
|
Sparkle
|
Rome | Italy | 92.123.106.9 | 7 IPs |
|
Akamai
|
Sparkle
|
Palermo | Italy | 93.186.134.112 | 5 IPs |
|
Akamai
|
Sparkle
|
Core Network | Italy | 93.186.135.67 | 8 IPs |
|
Akamai
|
ASN AS58717 | Core Network | Bangladesh | 103.15.244.234 | 1 IP |
|
Akamai
|
Airtel
|
Core Network | India | 104.108.243.106 | 1 IP |
|
Akamai
|
ASN AS141013 | Core Network | Philippines | 116.89.245.154 | 3 IPs |
|
Akamai
|
Vocus
|
Perth | Australia | 121.79.127.25 | 2 IPs |
|
Akamai
|
Vocus
|
Melbourne | Australia | 139.218.20.203 | 1 IP |
|
Akamai
|
ASN AS24186 | Core Network | India | 122.252.233.200 | 3 IPs |
|
Akamai
|
Aussie Broadband
|
Brisbane | Australia | 123.253.149.138 | 2 IPs |
|
Akamai
|
Aussie Broadband
|
Sydney | Australia | 180.150.1.88 | 2 IPs |
|
Akamai
|
Samsung SDS
|
Core Network | South Korea | 157.197.173.179 | 1 IP |
|
Akamai
|
ASN AS5713 | Core Network | South Africa | 165.165.47.49 | 2 IPs |
|
Akamai
|
ASN AS27947 | Core Network | Ecuador | 181.39.103.8 | 8 IPs |
|
Akamai
|
FPT Group
|
Hanoi | Vietnam | 183.80.211.163 | 1 IP |
|
Akamai
|
Bell Canada
|
Montreal | Canada | 184.150.49.107 | 2 IPs |
|
Akamai
|
ASN AS8932 | Core Network | Armenia | 185.48.240.232 | 2 IPs |
|
Akamai
|
Telmex
|
Mexico City | Mexico | 189.247.174.19 | 4 IPs |
|
Akamai
|
ASN AS19429 | Core Network | Colombia | 190.25.210.17 | 8 IPs |
|
Akamai
|
ASN AS719 | Core Network | Finland | 193.229.109.107 | 2 IPs |
|
Akamai
|
ASN AS5385 | Core Network | Austria | 194.183.149.202 | 1 IP |
|
Akamai
|
Dimension Data
|
Randburg | South Africa | 197.80.130.80 | 4 IPs |
|
Akamai
|
Dimension Data
|
Core Network | South Africa | 197.84.130.49 | 3 IPs |
|
Akamai
|
ASN AS37468 | Core Network | Angola | 197.149.148.139 | 3 IPs |
|
Akamai
|
Flo Networks
|
Nogales | Mexico | 201.174.29.139 | 5 IPs |
|
Akamai
|
Flo Networks
|
Reynosa | Mexico | 201.174.232.136 | 2 IPs |
|
Akamai
|
Chunghwa Telecom
|
Taipei | Taiwan | 203.69.81.49 | 4 IPs |
|
Akamai
|
ASN AS2381 | Core Network | United States | 205.213.110.136 | 4 IPs |
|
Akamai
|
TekSavvy
|
Toronto | Canada | 206.248.168.160 | 2 IPs |
|
Akamai
|
ASN AS12297 | Core Network | Armenia | 212.73.88.210 | 2 IPs |
|
Akamai
|
VNPT
|
Hanoi | Vietnam | 4 IPs |
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