semantic-ui.com A

24 hours
100.00%
7 days
100.00%
30 days
100.00%
IPv4 / IPv6
3 2
SSL Certificate
63d
Security Headers
0/6
Status Badges

Click any snippet to copy. Use Markdown for GitHub READMEs, HTML for websites.
Badge Markdown HTML
Status [![Status](https://updown.website/badge/semantic-ui.com/status.svg)](https://updown.website/site/semantic-ui.com/) <a href="https://updown.website/site/semantic-ui.com/"><img src="https://updown.website/badge/semantic-ui.com/status.svg" alt="Status"></a>
Uptime [![Uptime](https://updown.website/badge/semantic-ui.com/uptime.svg)](https://updown.website/site/semantic-ui.com/) <a href="https://updown.website/site/semantic-ui.com/"><img src="https://updown.website/badge/semantic-ui.com/uptime.svg" alt="Uptime"></a>
Response Time [![Response Time](https://updown.website/badge/semantic-ui.com/response-time.svg)](https://updown.website/site/semantic-ui.com/) <a href="https://updown.website/site/semantic-ui.com/"><img src="https://updown.website/badge/semantic-ui.com/response-time.svg" alt="Response Time"></a>
SSL [![SSL](https://updown.website/badge/semantic-ui.com/ssl.svg)](https://updown.website/site/semantic-ui.com/) <a href="https://updown.website/site/semantic-ui.com/"><img src="https://updown.website/badge/semantic-ui.com/ssl.svg" alt="SSL"></a>
Performance [![Performance](https://updown.website/badge/semantic-ui.com/cwv.svg)](https://updown.website/site/semantic-ui.com/) <a href="https://updown.website/site/semantic-ui.com/"><img src="https://updown.website/badge/semantic-ui.com/cwv.svg" alt="Performance"></a>
Accessibility [![Accessibility](https://updown.website/badge/semantic-ui.com/cwv.svg?category=accessibility)](https://updown.website/site/semantic-ui.com/) <a href="https://updown.website/site/semantic-ui.com/"><img src="https://updown.website/badge/semantic-ui.com/cwv.svg?category=accessibility" alt="Accessibility"></a>
SEO [![SEO](https://updown.website/badge/semantic-ui.com/cwv.svg?category=seo)](https://updown.website/site/semantic-ui.com/) <a href="https://updown.website/site/semantic-ui.com/"><img src="https://updown.website/badge/semantic-ui.com/cwv.svg?category=seo" alt="SEO"></a>
Security Headers [![Security Headers](https://updown.website/badge/semantic-ui.com/security-headers.svg)](https://updown.website/site/semantic-ui.com/) <a href="https://updown.website/site/semantic-ui.com/"><img src="https://updown.website/badge/semantic-ui.com/security-headers.svg" alt="Security Headers"></a>
Uptime 24h [![Uptime 24h](https://updown.website/badge/semantic-ui.com/uptime.svg?period=24h)](https://updown.website/site/semantic-ui.com/) <a href="https://updown.website/site/semantic-ui.com/"><img src="https://updown.website/badge/semantic-ui.com/uptime.svg?period=24h" alt="Uptime 24h"></a>
Incidents [![Incidents](https://updown.website/badge/semantic-ui.com/incidents.svg)](https://updown.website/site/semantic-ui.com/) <a href="https://updown.website/site/semantic-ui.com/"><img src="https://updown.website/badge/semantic-ui.com/incidents.svg" alt="Incidents"></a>
IPv4/IPv6 [![IPv4/IPv6](https://updown.website/badge/semantic-ui.com/ipv46.svg)](https://updown.website/site/semantic-ui.com/) <a href="https://updown.website/site/semantic-ui.com/"><img src="https://updown.website/badge/semantic-ui.com/ipv46.svg" alt="IPv4/IPv6"></a>
Site Health (24 h)
HTTP Response DNS Lookup Ping Up Down Reports Incident
Monitoring
Recent HTTP Checks (24 h)
Total Checks
8
Success Rate
100%
Avg Response
564 ms
Min / Max
88 / 1577 ms
Recent Checks
16:08 09:25
Time Status Code Response Agent Error
09:25:58 UP 200 797 ms prod-local
07:04:39 UP 200 91 ms prod-local
05:04:18 UP 200 88 ms prod-local
01:57:08 UP 200 842 ms prod-local
00:53:04 UP 200 911 ms prod-local
21:57:36 UP 200 99 ms prod-local
17:18:16 UP 200 110 ms prod-local
16:08:38 UP 200 1577 ms prod-local
Incident History

No incidents recorded — all clear!

Community
0
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Mail Server (SMTP) Checks
3 checked
Status MX Host Port IP EHLO STARTTLS TLS Works TLS Ver Open Relay Auth Reverse DNS Banner Latency Checked
mx.zohomail.com 25 204.141.33.44 10001.8 ms 1 day, 16 hours ago
mx.zohomail.com 465 204.141.33.44 10002.1 ms 1 day, 16 hours ago
mx.zohomail.com 587 204.141.33.44 10005.2 ms 1 day, 16 hours ago
Service Checks (Banner Grab)
9 up 3 down
Status Port Service Version IP Banner Latency Checked
80 http 2606:4700:3033::ac43:c3b2 HTTP/1.1 301 Moved Permanently Date: Wed, 22 Apr 2026 09:32:59 GMT Connection… 4.5 ms 2 hours, 24 minutes ago
443 https 2606:4700:3033::ac43:c3b2 503.4 ms 2 hours, 24 minutes ago
2082 cpanel 2606:4700:3033::ac43:c3b2 2004.6 ms 2 hours, 24 minutes ago
2083 cpanel-ssl 2606:4700:3033::ac43:c3b2 2004.4 ms 2 hours, 24 minutes ago
2086 whm 2606:4700:3033::ac43:c3b2 2004.2 ms 2 hours, 24 minutes ago
2087 whm-ssl 2606:4700:3033::ac43:c3b2 2003.9 ms 2 hours, 24 minutes ago
8080 http 2606:4700:3033::ac43:c3b2 HTTP/1.1 301 Moved Permanently Date: Wed, 22 Apr 2026 09:32:59 GMT Connection… 3.0 ms 2 hours, 24 minutes ago
8443 https-alt 2606:4700:3033::ac43:c3b2 503.5 ms 2 hours, 24 minutes ago
8880 cddbp-alt 2606:4700:3033::ac43:c3b2 2003.7 ms 2 hours, 24 minutes ago
Security
SSL / TLS Certificate
63
days left
Valid
Mar 26, 2026 Jun 24, 2026
Issued → Expires
Subject commonName=semantic-ui.com
Issuer countryName=US, organizationName=Google Trust Services, commonName=WE1
Valid From 2026-03-26 19:28
Expires 2026-06-24 20:28
Serial Number 6C3AEA4C3089F6980EA2E97E89BC9598
SHA-256 Fingerprint fb:15:c2:a3:0a:f8:e2:c2:9f:20:fa:19:51:89:ab:eb:da:6b:7c:98:ef:db:87:a6:24:ac:83:cc:50:76:f5:af
Subject Alt Names semantic-ui.com cdn.semantic-ui.com *.cdn.semantic-ui.com
Last Checked 2026-04-22 09:25:58
Latest HTTP Response Details
Final URL https://semantic-ui.com/
Status Code 200
Response Time 797 ms
Content Size 67 KB (66.6 KB)
Content Type text/html; charset=utf-8
Server cloudflare
TLS Version TLSv1.2
TLS Cipher ECDHE-ECDSA-AES128-GCM-SHA256
Redirects 0
Checked 2026-04-22 09:25:58
Security Headers 0/6
Header Status Value
Strict-Transport-Security Missing
Content-Security-Policy Missing
X-Frame-Options Missing
X-Content-Type-Options Missing
Referrer-Policy Missing
Permissions-Policy Missing
Email Security Posture
MX Records
SPF
DMARC
Details v=DMARC1; p=none;
BIMI
MTA-STS
Weak
Overall
DNS & Network
DNS Intelligence (24h)
Avg Resolution
23.5 ms
Min / Max
4.7 / 64.2 ms
Record Types
5
Lookups (24h)
40
DNS Records
A
104.21.84.180 172.67.195.178
300s 13.4ms
AAAA
2606:4700:3032::6815:54b4 2606:4700:3033::ac43:c3b2
300s 4.7ms
MX
10 mx.zohomail.com
20 mx2.zohomail.com
300s 4.0ms
NS
coco.ns.cloudflare.com paul.ns.cloudflare.com
86400s 19.0ms
SOA
Primary NS
coco.ns.cloudflare.com
Admin
dns@cloudflare.com
Serial: 2402231761 Refresh: 2h Retry: 40m Expire: 7d Min TTL: 30m
1800s 5.1ms
DNS Propagation Consistent
Resolver IPs Returned Response Time Status
Quad9 104.21.84.180 172.67.195.178 13.45ms
Google 104.21.84.180 172.67.195.178 32.27ms
AdGuard 104.21.84.180 172.67.195.178 38.1ms
OpenDNS 104.21.84.180 172.67.195.178 36.31ms
Cloudflare 104.21.84.180 172.67.195.178 3.28ms
WHOIS / Domain Registration
Registrar
NameCheap, Inc.
Registrant Organization
Privacy service provided by Withheld for Privacy ehf
Created
2012-10-28
Updated
2026-02-12
Expires
2029-10-28
Name Servers (WHOIS)
coco.ns.cloudflare.com paul.ns.cloudflare.com
Domain Status
clientTransferProhibited
DNSSEC
Unsigned
Country
IS
WHOIS Last Checked
2026-04-20 18:33
Resolution Time (A/AAAA recent)
00:53 09:25
Time Type Values TTL Resolution Nameserver
09:25:58 SOA coco.ns.cloudflare.com dns.cloudflare.com 2402231761 10000 2400 604800 1800 1800s 5.1 ms 10.89.0.1
09:25:58 NS coco.ns.cloudflare.com paul.ns.cloudflare.com 86400s 19.0 ms 10.89.0.1
09:25:58 MX 10 mx.zohomail.com 20 mx2.zohomail.com 300s 4.0 ms 10.89.0.1
09:25:58 AAAA 2606:4700:3032::6815:54b4 2606:4700:3033::ac43:c3b2 300s 4.7 ms 10.89.0.1
09:25:58 A 104.21.84.180 172.67.195.178 300s 13.4 ms 10.89.0.1
07:04:38 SOA coco.ns.cloudflare.com dns.cloudflare.com 2402231761 10000 2400 604800 1800 1800s 4.6 ms 10.89.0.1
07:04:38 NS coco.ns.cloudflare.com paul.ns.cloudflare.com 86400s 20.8 ms 10.89.0.1
07:04:38 MX 10 mx.zohomail.com 20 mx2.zohomail.com 300s 12.2 ms 10.89.0.1
07:04:38 AAAA 2606:4700:3032::6815:54b4 2606:4700:3033::ac43:c3b2 300s 12.4 ms 10.89.0.1
07:04:38 A 104.21.84.180 172.67.195.178 300s 48.4 ms 10.89.0.1
05:04:18 SOA coco.ns.cloudflare.com dns.cloudflare.com 2402231761 10000 2400 604800 1800 1800s 4.5 ms 10.89.0.1
05:04:18 NS coco.ns.cloudflare.com paul.ns.cloudflare.com 86400s 13.1 ms 10.89.0.1
05:04:18 MX 10 mx.zohomail.com 20 mx2.zohomail.com 300s 5.2 ms 10.89.0.1
05:04:18 AAAA 2606:4700:3033::ac43:c3b2 2606:4700:3032::6815:54b4 300s 64.2 ms 10.89.0.1
05:04:18 A 172.67.195.178 104.21.84.180 300s 21.1 ms 10.89.0.1
01:57:07 SOA coco.ns.cloudflare.com dns.cloudflare.com 2402231761 10000 2400 604800 1800 1800s 19.3 ms 10.89.0.1
01:57:07 NS paul.ns.cloudflare.com coco.ns.cloudflare.com 21600s 19.6 ms 10.89.0.1
01:57:07 MX 20 mx2.zohomail.com 10 mx.zohomail.com 300s 21.1 ms 10.89.0.1
01:57:07 AAAA 2606:4700:3032::6815:54b4 2606:4700:3033::ac43:c3b2 300s 37.4 ms 10.89.0.1
01:57:07 A 172.67.195.178 104.21.84.180 300s 38.3 ms 10.89.0.1
00:53:04 SOA coco.ns.cloudflare.com dns.cloudflare.com 2402231761 10000 2400 604800 1800 1800s 4.3 ms 10.89.0.1
00:53:04 NS coco.ns.cloudflare.com paul.ns.cloudflare.com 86400s 5.1 ms 10.89.0.1
00:53:04 MX 10 mx.zohomail.com 20 mx2.zohomail.com 300s 14.0 ms 10.89.0.1
00:53:04 AAAA 2606:4700:3033::ac43:c3b2 2606:4700:3032::6815:54b4 300s 14.4 ms 10.89.0.1
00:53:04 A 172.67.195.178 104.21.84.180 300s 21.3 ms 10.89.0.1
21:57:36 SOA coco.ns.cloudflare.com dns.cloudflare.com 2402231761 10000 2400 604800 1800 1800s 5.5 ms 10.89.0.1
21:57:36 NS coco.ns.cloudflare.com paul.ns.cloudflare.com 86400s 14.6 ms 10.89.0.1
21:57:36 MX 10 mx.zohomail.com 20 mx2.zohomail.com 300s 13.5 ms 10.89.0.1
21:57:36 AAAA 2606:4700:3032::6815:54b4 2606:4700:3033::ac43:c3b2 300s 22.3 ms 10.89.0.1
21:57:36 A 104.21.84.180 172.67.195.178 300s 14.3 ms 10.89.0.1
17:18:15 SOA coco.ns.cloudflare.com dns.cloudflare.com 2402231761 10000 2400 604800 1800 1800s 14.4 ms 10.89.0.1
17:18:15 NS coco.ns.cloudflare.com paul.ns.cloudflare.com 86400s 5.0 ms 10.89.0.1
17:18:15 MX 10 mx.zohomail.com 20 mx2.zohomail.com 300s 13.9 ms 10.89.0.1
17:18:15 AAAA 2606:4700:3033::ac43:c3b2 2606:4700:3032::6815:54b4 300s 6.1 ms 10.89.0.1
17:18:15 A 172.67.195.178 104.21.84.180 300s 14.6 ms 10.89.0.1
16:08:37 SOA coco.ns.cloudflare.com dns.cloudflare.com 2402231761 10000 2400 604800 1800 1800s 19.6 ms 10.89.0.1
16:08:37 NS paul.ns.cloudflare.com coco.ns.cloudflare.com 21600s 28.7 ms 10.89.0.1
16:08:37 MX 10 mx.zohomail.com 20 mx2.zohomail.com 300s 28.1 ms 10.89.0.1
16:08:37 AAAA 2606:4700:3033::ac43:c3b2 2606:4700:3032::6815:54b4 300s 23.2 ms 10.89.0.1
16:08:37 A 104.21.84.180 172.67.195.178 300s 20.0 ms 10.89.0.1
Open Ports 36
Open Ports
36
IPs Scanned
36
Port Protocol Service IP Address Status Latency Banner
80 TCP http 104.21.84.180 Open 9.2 ms
80 TCP http 2606:4700:3032::6815:54b4 Open 2.3 ms
80 TCP http 2606:4700:3033::ac43:c3b2 Open 2.8 ms
80 TCP http 172.67.195.178 Open 3.2 ms
443 TCP https 2606:4700:3032::6815:54b4 Open 2.1 ms
443 TCP https 172.67.195.178 Open 2.2 ms
443 TCP https 2606:4700:3033::ac43:c3b2 Open 2.1 ms
443 TCP https 104.21.84.180 Open 8.6 ms
2082 TCP cpanel 2606:4700:3033::ac43:c3b2 Open 3.1 ms
2082 TCP cpanel 172.67.195.178 Open 2.8 ms
2082 TCP cpanel 2606:4700:3032::6815:54b4 Open 9.4 ms
2082 TCP cpanel 104.21.84.180 Open 9.3 ms
2083 TCP cpanel-ssl 2606:4700:3033::ac43:c3b2 Open 3.3 ms
2083 TCP cpanel-ssl 104.21.84.180 Open 9.0 ms
2083 TCP cpanel-ssl 172.67.195.178 Open 1.7 ms
2083 TCP cpanel-ssl 2606:4700:3032::6815:54b4 Open 2.8 ms
2086 TCP whm 2606:4700:3033::ac43:c3b2 Open 3.5 ms
2086 TCP whm 172.67.195.178 Open 2.1 ms
2086 TCP whm 2606:4700:3032::6815:54b4 Open 4.1 ms
2086 TCP whm 104.21.84.180 Open 8.6 ms
2087 TCP whm-ssl 2606:4700:3033::ac43:c3b2 Open 1.8 ms
2087 TCP whm-ssl 172.67.195.178 Open 2.8 ms
2087 TCP whm-ssl 104.21.84.180 Open 8.1 ms
2087 TCP whm-ssl 2606:4700:3032::6815:54b4 Open 2.3 ms
8080 TCP http-alt 104.21.84.180 Open 8.4 ms
8080 TCP http-alt 2606:4700:3033::ac43:c3b2 Open 2.9 ms
8080 TCP http-alt 2606:4700:3032::6815:54b4 Open 8.2 ms
8080 TCP http-alt 172.67.195.178 Open 3.7 ms
8443 TCP https-alt 172.67.195.178 Open 3.1 ms
8443 TCP https-alt 2606:4700:3033::ac43:c3b2 Open 2.3 ms
8443 TCP https-alt 104.21.84.180 Open 8.0 ms
8443 TCP https-alt 2606:4700:3032::6815:54b4 Open 2.5 ms
8880 TCP cddbp-alt 172.67.195.178 Open 2.4 ms
8880 TCP cddbp-alt 2606:4700:3033::ac43:c3b2 Open 2.9 ms
8880 TCP cddbp-alt 2606:4700:3032::6815:54b4 Open 2.0 ms
8880 TCP cddbp-alt 104.21.84.180 Open 7.9 ms
Active IP Addresses
IP Address Version Reverse DNS CIDR Country City ASN Reputation First Seen Last DNS Hits Misses Uptime % Avg Latency
2606:4700:3033::ac43:c3b2 IPv6 2606:4700:3033::/48 AS13335 Cloudflare, Inc. Clean 2026-04-19 17:02 2026-04-22 09:25 8 0 100.0% 4.0 ms
2606:4700:3032::6815:54b4 IPv6 2606:4700:3032::/48 AS13335 Cloudflare, Inc. Clean 2026-04-19 17:02 2026-04-22 09:25 8 0 100.0% 3.6 ms
104.21.84.180 IPv4 104.21.84.0/24 AS13335 Cloudflare, Inc. Clean 2026-04-19 17:02 2026-04-22 09:25 8 0 100.0% 5.3 ms
172.67.195.178 IPv4 172.67.195.0/24 AS13335 Cloudflare, Inc. Clean 2026-04-19 17:02 2026-04-22 09:25 8 0 100.0% 4.7 ms
204.141.33.44 IPv4 mx.zohomail.com 2026-04-19 20:39 2026-04-19 20:39 0 0
Technology
Technology Stack 12 detected
HTTP/2
HTTP/3 (QUIC)
12
Technologies
API 1
Public CORS API
90%
CORS wildcard origin
Analytics 1
Analytics script
CDN 1
CF-Ray header present
CMS 1
DocPad vv6.79.4
95%
Meta generator tag
CSS 1
Semantic UI CSS
Cache 1
X-Proxy-Cache header
DNS 1
NS record: coco.ns.cloudflare.com
Library 1
70%
jQuery script
Platform 1
X-GitHub-Request-Id header
Protocol 1
HTTP/3 (QUIC)
90%
Alt-Svc h3 advertised
Social 1
Twitter embed
Translation 1
Transifex
Technology Provider 1 tech · 1 sites

This domain provides technology used by other monitored sites.

Semantic UI
Discovery
Crawl Configuration
robots.txt No sitemap
robots.txt
# robotstxt.org/

User-agent: *
Sitemap

No sitemap discovered.
Checked /robots.txt, /sitemap.xml, and /sitemap_index.xml

Discovered Sub-domains 12
Wordlist Brute-force 11 Link Scan 1
Subdomain Source Status Code Response IPs Last Checked
1.semantic-ui.com Wordlist Brute-force UP 200 95 ms 2606:4700:3033::ac43:c3b2, 2606:4700:3032::6815:54b4 1 day, 22 hours ago
ai.semantic-ui.com Wordlist Brute-force UP 404 171 ms 1 day, 22 hours ago
api.semantic-ui.com Wordlist Brute-force UP 200 114 ms 2606:4700:3032::6815:54b4, 2606:4700:3033::ac43:c3b2 1 day, 22 hours ago
beta.semantic-ui.com Wordlist Brute-force UP 404 72 ms 2606:4700:3033::ac43:c3b2, 2606:4700:3032::6815:54b4 1 day, 22 hours ago
cdn.semantic-ui.com Wordlist Brute-force UP 200 346 ms 2606:4700:3032::6815:54b4, 2606:4700:3033::ac43:c3b2 1 day, 22 hours ago
forums.semantic-ui.com Link Scan DOWN 522 19822 ms 2606:4700:3033::ac43:c3b2, 2606:4700:3032::6815:54b4 1 day, 22 hours ago
legacy.semantic-ui.com Wordlist Brute-force UP 200 65 ms 2606:4700:3033::ac43:c3b2, 2606:4700:3032::6815:54b4 1 day, 22 hours ago
mail.semantic-ui.com Wordlist Brute-force UP 200 114 ms 1 day, 22 hours ago
next.semantic-ui.com Wordlist Brute-force UP 200 314 ms 2606:4700:3032::6815:54b4, 2606:4700:3033::ac43:c3b2 1 day, 22 hours ago
react.semantic-ui.com Wordlist Brute-force UP 200 85 ms 2606:4700:3033::ac43:c3b2, 2606:4700:3032::6815:54b4 1 day, 22 hours ago
staging.semantic-ui.com Wordlist Brute-force UP 200 573 ms 2606:4700:3032::6815:54b4, 2606:4700:3033::ac43:c3b2 1 day, 22 hours ago
www.semantic-ui.com Wordlist Brute-force UP 200 174 ms 2606:4700:3032::6815:54b4, 2606:4700:3033::ac43:c3b2 1 day, 22 hours ago