bootstrapcdn.com - dns.ninja

bootstrapcdn.com

DNSSEC⚠️ Not signed
A2606:4700::6812:acf🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6812:bcf🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.10.207Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.11.207Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbrenda.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a4d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrenda.ns.cloudflare.com
A2803:f800:50::6ca2:c04d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbrenda.ns.cloudflare.com
A2a06:98c1:50::ac40:204d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbrenda.ns.cloudflare.com
A108.162.192.77🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrenda.ns.cloudflare.com
A172.64.32.77🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrenda.ns.cloudflare.com
A173.245.58.77🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrenda.ns.cloudflare.com
NSkeenan.ns.cloudflare.com
A2606:4700:58::a29f:2c0b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeenan.ns.cloudflare.com
A2803:f800:50::6ca2:c30b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkeenan.ns.cloudflare.com
A2a06:98c1:50::ac40:230b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkeenan.ns.cloudflare.com
A108.162.195.11🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeenan.ns.cloudflare.com
A162.159.44.11Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeenan.ns.cloudflare.com
A172.64.35.11🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeenan.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.18.10.207, 104.18.11.207
IPv6 hints2606:4700::6812:acf, 2606:4700::6812:bcf
SOAbrenda.ns.cloudflare.comdns@cloudflare.com serial=2408376949

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1785847057
rank #34357 globally
rank #16887 in the tld
WOT: SAFE (81/100)
📈 Tranco rank: #1,949

BootstrapCDN

BootstrapCDN is a free content delivery network (CDN) providing production-ready hosting for popular front-end web development libraries. It serves as the recommended CDN for Bootstrap, Font Awesome, Bootswatch themes, and Bootstrap Icons, making it a go-to resource for web developers who need reliable, fast-loading assets.

Services

  • Bootstrap — CSS framework (v5.3.3, v4.6.2, and older versions)
  • Font Awesome — Icon library
  • Bootstrap Icons — Official Bootstrap icon set
  • Bootswatch — Free Bootstrap themes
  • Bootlint — Code quality tools for Bootstrap projects

The service is operated by jsDelivr and powered by the Globalping network testing platform. Major sponsors include Cloudflare, Fastly, NS1, BunnyCDN, and developer Dmitriy Akulov.

Infrastructure

  • DNS: Cloudflare nameservers (brenda.ns.cloudflare.com, keenan.ns.cloudflare.com)
  • CDN: Cloudflare network (IPs: 104.18.10.207, 104.18.11.207)
  • IPv6: Fully supported (2606:4700::6812:acf, 2606:4700::6812:bcf)
  • Protocols: HTTP/2 and HTTP/3 enabled
  • DNSSEC: Not signed

Legacy subdomains (maxcdn.bootstrapcdn.com, stackpath.bootstrapcdn.com, netdna.bootstrapcdn.com) reflect the service's historical association with MaxCDN/StackPath before transitioning to its current jsDelivr-operated infrastructure.

Subdomains

www.bootstrapcdn.com
stackpath.bootstrapcdn.com
current.bootstrapcdn.com
netdna.bootstrapcdn.com
maxcdn.bootstrapcdn.com

Same first word

bootstrapcdn.cfd
bootstrapcdn.com
bootstrapcdn.co
bootstrapcdn.fun
bootstrapcdn.net
bootstrapcdn.org

Similar names

cdnbootstrap.com

DNS History

19 records (6 active, 13 former)

20162017201820192020202120222023202420252026NSbrenda.ns.cloudflare.comkeenan.ns.cloudflare.comdns1.p07.nsone.netdns2.p07.nsone.netdns3.p07.nsone.netdns4.p07.nsone.netns-1474.awsdns-56.orgns-1689.awsdns-19.co.ukns-265.awsdns-33.comns-570.awsdns-07.netMXbootstrapcdn-com.mail.protection.outlook.comus-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.comA104.18.10.207104.18.11.2072606:4700::6812:acf2606:4700::6812:bcf174.129.25.170216.24.57.1
●NSbrenda.ns.cloudflare.com2021-04-17 → 2026-08-04 · 3 obs
○ 2021-01-10 01:40:16
● 2021-04-17 00:11:28
● 2026-08-04 13:07:44
○NSdns1.p07.nsone.net2015-05-05 → 2021-01-10 · 48 obs
● 2015-05-05 05:42:40
● 2015-10-08 10:46:14
○ 2015-10-09 18:05:44
○ 2015-10-13 15:09:14
● 2015-10-21 05:04:24
○ 2015-10-22 19:27:56
○ 2015-10-28 20:05:28
● 2015-10-29 20:19:02
○ 2015-11-13 06:06:28
● 2015-11-14 14:42:12
○ 2015-11-29 11:26:36
○ 2015-12-28 13:34:24
● 2015-12-30 12:08:02
● 2016-01-27 04:07:12
○ 2016-01-29 05:29:24
○ 2016-02-05 14:11:50
● 2016-02-19 00:20:48
● 2016-03-20 05:49:54
○ 2016-03-24 07:27:32
○ 2017-01-10 19:27:52
● 2017-01-12 07:53:12
○ 2017-01-25 13:18:28
○ 2017-03-02 10:43:52
● 2017-03-05 01:35:00
● 2017-04-19 14:31:44
○ 2017-05-17 19:39:52
● 2017-07-10 13:53:24
● 2017-07-20 10:45:48
○ 2017-07-21 01:58:16
○ 2017-10-03 18:29:38
● 2017-10-29 00:28:02
● 2017-11-14 11:24:08
○ 2017-11-30 14:04:56
○ 2017-12-27 23:25:50
● 2018-01-09 19:16:10
○ 2018-02-26 21:47:54
○ 2018-04-15 10:37:44
● 2018-06-08 21:24:32
○ 2018-07-18 05:51:38
○ 2018-07-24 19:03:50
● 2019-03-17 05:35:22
● 2020-09-07 11:43:12
○ 2020-09-10 12:43:32
● 2020-09-24 18:33:58
○ 2020-10-16 12:40:08
● 2021-01-10 01:40:16
○ 2021-04-17 00:11:28
○ 2026-08-04 13:07:44
○NSdns2.p07.nsone.net2015-05-05 → 2021-01-10 · 4 obs
● 2015-05-05 05:42:40
● 2021-01-10 01:40:16
○ 2021-04-17 00:11:28
○ 2026-08-04 13:07:44
○NSdns3.p07.nsone.net2015-05-05 → 2021-01-10 · 4 obs
● 2015-05-05 05:42:40
● 2021-01-10 01:40:16
○ 2021-04-17 00:11:28
○ 2026-08-04 13:07:44
○NSdns4.p07.nsone.net2015-05-05 → 2021-01-10 · 4 obs
● 2015-05-05 05:42:40
● 2021-01-10 01:40:16
○ 2021-04-17 00:11:28
○ 2026-08-04 13:07:44
●NSkeenan.ns.cloudflare.com2021-04-17 → 2026-08-04 · 3 obs
○ 2021-01-10 01:40:16
● 2021-04-17 00:11:28
● 2026-08-04 13:07:44
○NSns-1474.awsdns-56.org2015-10-08 → 2021-01-10 · 47 obs
○ 2015-05-05 05:42:40
● 2015-10-08 10:46:14
● 2015-10-13 15:09:14
○ 2015-10-21 05:04:24
● 2015-10-22 19:27:56
● 2015-10-28 20:05:28
○ 2015-10-29 20:19:02
● 2015-11-13 06:06:28
○ 2015-11-14 14:42:12
● 2015-11-29 11:26:36
● 2015-12-28 13:34:24
○ 2015-12-30 12:08:02
○ 2016-01-27 04:07:12
● 2016-01-29 05:29:24
● 2016-02-05 14:11:50
○ 2016-02-19 00:20:48
○ 2016-03-20 05:49:54
● 2016-03-24 07:27:32
● 2017-01-10 19:27:52
○ 2017-01-12 07:53:12
● 2017-01-25 13:18:28
● 2017-03-02 10:43:52
○ 2017-03-05 01:35:00
○ 2017-04-19 14:31:44
● 2017-05-17 19:39:52
○ 2017-07-10 13:53:24
○ 2017-07-20 10:45:48
● 2017-07-21 01:58:16
● 2017-10-03 18:29:38
○ 2017-10-29 00:28:02
○ 2017-11-14 11:24:08
● 2017-11-30 14:04:56
● 2017-12-27 23:25:50
○ 2018-01-09 19:16:10
● 2018-02-26 21:47:54
● 2018-04-15 10:37:44
○ 2018-06-08 21:24:32
● 2018-07-18 05:51:38
● 2018-07-24 19:03:50
○ 2019-03-17 05:35:22
○ 2020-09-07 11:43:12
● 2020-09-10 12:43:32
○ 2020-09-24 18:33:58
● 2020-10-16 12:40:08
● 2021-01-10 01:40:16
○ 2021-04-17 00:11:28
○ 2026-08-04 13:07:44
○NSns-1689.awsdns-19.co.uk2015-10-08 → 2021-01-10 · 5 obs
○ 2015-05-05 05:42:40
● 2015-10-08 10:46:14
● 2021-01-10 01:40:16
○ 2021-04-17 00:11:28
○ 2026-08-04 13:07:44
○NSns-265.awsdns-33.com2015-10-08 → 2021-01-10 · 5 obs
○ 2015-05-05 05:42:40
● 2015-10-08 10:46:14
● 2021-01-10 01:40:16
○ 2021-04-17 00:11:28
○ 2026-08-04 13:07:44
○NSns-570.awsdns-07.net2015-10-08 → 2021-01-10 · 5 obs
○ 2015-05-05 05:42:40
● 2015-10-08 10:46:14
● 2021-01-10 01:40:16
○ 2021-04-17 00:11:28
○ 2026-08-04 13:07:44
○MXbootstrapcdn-com.mail.protection.outlook.com2017-10-29 → 2019-03-17 · 4 obs
● 2017-10-29 00:28:02
● 2019-03-17 05:35:22
○ 2020-07-26 19:44:32
○ 2026-08-04 13:07:44
○MXus-smtp-inbound-1.mimecast.com2020-07-26 → 2021-01-10 · 5 obs
○ 2019-03-17 05:35:22
● 2020-07-26 19:44:32
● 2021-01-10 01:40:16
○ 2021-04-17 00:11:28
○ 2026-08-04 13:07:44
○MXus-smtp-inbound-2.mimecast.com2020-07-26 → 2021-01-10 · 5 obs
○ 2019-03-17 05:35:22
● 2020-07-26 19:44:32
● 2021-01-10 01:40:16
○ 2021-04-17 00:11:28
○ 2026-08-04 13:07:44
●A104.18.10.2072021-04-17 → 2026-08-04 · 5 obs
○ 2021-01-10 01:40:16
● 2021-04-17 00:11:28
○ 2021-11-06 20:09:00
● 2026-02-15 00:40:46
● 2026-08-04 13:07:44
●A104.18.11.2072021-04-17 → 2026-08-04 · 5 obs
○ 2021-01-10 01:40:16
● 2021-04-17 00:11:28
○ 2021-11-06 20:09:00
● 2026-02-15 00:40:46
● 2026-08-04 13:07:44
○A174.129.25.1702015-05-05 → 2021-01-10 · 4 obs
● 2015-05-05 05:42:40
● 2021-01-10 01:40:16
○ 2021-04-17 00:11:28
○ 2026-08-04 13:07:44
○A216.24.57.12021-11-06 → 2021-11-06 · 4 obs
○ 2021-04-17 00:11:28
● 2021-11-06 20:09:00
○ 2026-02-15 00:40:46
○ 2026-08-04 13:07:44
●A2606:4700::6812:acf2021-04-17 → 2026-08-04 · 5 obs
○ 2021-01-10 01:40:16
● 2021-04-17 00:11:28
○ 2021-11-06 20:09:00
● 2026-02-15 00:40:46
● 2026-08-04 13:07:44
●A2606:4700::6812:bcf2021-04-17 → 2026-08-04 · 5 obs
○ 2021-01-10 01:40:16
● 2021-04-17 00:11:28
○ 2021-11-06 20:09:00
● 2026-02-15 00:40:46
● 2026-08-04 13:07:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
bootstrapcdn.combrenda.ns.cloudflare.com, keenan.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.77

NS records: brenda.ns.cloudflare.com, keenan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bootstrapcdn.com (unsigned zone)

⏱️ Timing

Total: 135ms | Queries: -

📄 Records

TypeCountSample Data
A2104.18.11.207, 104.18.10.207
AAAA22606:4700::6812:acf, 2606:4700::6812:bcf
NS2brenda.ns.cloudflare.com, keenan.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1brenda.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (brenda.ns.cloudflare.com, brenda.ns.cloudflare.com, brenda.ns.cloudflare.com...)

Analysis

Hierarchy

bootstrapcdn.com has five child domains: www.bootstrapcdn.com, stackpath.bootstrapcdn.com, current.bootstrapcdn.com, netdna.bootstrapcdn.com and maxcdn.bootstrapcdn.com.

IP Addresses

bootstrapcdn.com points to the four IP addresses 104.18.10.207, 104.18.11.207, 2606:4700::6812:acf and 2606:4700::6812:bcf.

cdn.ramp-assets.playwire.com, www.sdgsinaction.com, admin-roundups-test02.moneyboxapp.org plus two other host names have IP numbers in common with bootstrapcdn.com.

Name Servers

Two name servers handle the delegation for bootstrapcdn.com: brenda.ns.cloudflare.com and keenan.ns.cloudflare.com.

The name server configuration of bootstrapcdn.com is shared with other domains, for instance slotjapri138jpjp.online, slaschool.org, metalpubs.com and two others.

There is at least partial name server overlap between bootstrapcdn.com and other domains — stikesmi.ac.id, time4bets-arabia.com, americaswildlife.org and two more among them.

The name servers hans.ns.cloudflare.com, marjory.ns.cloudflare.com and savanna.ns.cloudflare.com are often found in combination with these name servers.

Hosts with 6 IP addresses each:

brenda.ns.cloudflare.com resolves to 108.162.192.77, 172.64.32.77 and 173.245.58.77 among others, with 3 other IP addresses in total.

keenan.ns.cloudflare.com resolves to 108.162.195.11, 162.159.44.11 and 172.64.35.11 among others, with 3 other IP addresses in total.