🌐 ui.dev 200 🔒 SSL Valid
Checked: just now 🔗 Visit site
↪
This domain forwards to fireship.dev (checked 0d ago)
HTTP Status ?A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
200
SSL Expires ?When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 66d
Domain Expires ?When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 128d
Hosting ?The company and location where this website's server is physically located.Read more →
Unknown
Security ?Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
1/3
IP Address ?The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
104.21.81.115
Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
N/A
Uptime
N/A
⚡ Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
▼

Performance data not available yet.

🛠️ Tech Stack ?Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools.
▼

No technologies detected

📸 Screenshot
▼

Screenshot not available yet.

🌐 DNS Records ?DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
▼
A (IPv4)104.21.81.115172.67.189.80
AAAA (IPv6)2606:4700:3033::6815:51732606:4700:3034::ac43:bd50
NSjasmine.ns.cloudflare.comgraham.ns.cloudflare.com
MX10 alt4.aspmx.l.google.com5 alt1.aspmx.l.google.com5 alt2.aspmx.l.google.com1 aspmx.l.google.com10 alt3.aspmx.l.google.com
TXT (5)
Services configured via TXT:
Facebook / Meta Google
+2 other TXT record(s)
Show all TXT records
google-site-verification=UwqQx3BKaNlVnULDp55J_EZ6pzT9lH904XnOMxcdqDw
v=spf1 ip4:23.227.61.129 ip4:23.227.61.130 ip4:35.190.247.0/24 ip4:35.191.0.0/16 ip4:50.31.32.0/19 ip4:64.233.160.0/19 ip4:66.102.0.0/20 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:74.125.0.0/16 ip4:108.177.8.0/21 ip4:108.177.96.0/19 ip4:130.211.0.0/22 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:167.89.0.0/17 ip4:168.245.0.0/17 ip4:172.217.0.0/19 ip4:172.217.32.0/20 ip4:172.217.128.0/19 ip4:172.217.160.0/20 ip4:172.217.192.0/19 ip4:172.253.56.0/21 ip4:172.253.112.0/20 include:spf1.ui.dev ~all
ahrefs-site-verification_c190394ddf280278ec96bfcd446c0bca69ae0cda8bad29ea512f5b4840d1d6e5
facebook-domain-verification=ruyodmrpmkolgknky9hhu2zt1s6ast
firebase=uidotdev
📋 WHOIS / RDAP ?Public registration data: who registered the domain, when, and when it expires.Read more →
▼
RegistrarSquarespace Domains II LLC.
Registered2019-02-22
Expires2027-02-22 (in 128 days)
Last Updated2026-02-12
Statusclient delete prohibitedclient transfer prohibited
🔒 SSL Certificate ?Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
▼
Subject (CN)ui.dev
IssuerGoogle Trust Services
Valid From2026-09-23
Valid Until2026-12-22 (66 days left)
SANs (2)ui.dev*.ui.dev
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
▼
Status200
ServerVercel
Content-Typetext/html; charset=utf-8
Final URLhttps://fireship.dev/
strict-transport-securitymax-age=63072000
cache-controlpublic, max-age=0, must-revalidate
Security headers ?HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
HSTS
Content-Security-Policy
X-Frame-Options
🏠 Hosting ?Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
▼
IP Address104.21.81.115
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score F (2/7)
▼
Valid SSL
HSTS
CSP
X-Frame-Options
X-Content-Type
Referrer-Policy
Permissions-Policy
🗺️ Sitemap & Robots
▼
No robots.txt
This site has no robots.txt file, so crawlers may access everything by default.
Sitemap Not found
🔗 Social & Meta Tags
▼

No meta tags detected.

📧 Mail Security ?Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
▼
SPF✓ Present
v=spf1 ip4:23.227.61.129 ip4:23.227.61.130 ip4:35.190.247.0/24 ip4:35.191.0.0/16 ip4:50.31.32.0/19 ip4:64.233.160.0/19 ip4:66.102.0.0/20 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:74.125.0.0/16 ip4:108.177.8.0/21 ip4:108.177.96.0/19 ip4:130.211.0.0/22 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:167.89.0.0/17 ip4:168.245.0.0/17 ip4:172.217.0.0/19 ip4:172.217.32.0/20 ip4:172.217.128.0/19 ip4:172.217.160.0/20 ip4:172.217.192.0/19 ip4:172.253.56.0/21 ip4:172.253.112.0/20 include:spf1.ui.dev ~all
DMARC✓ Present
v=DMARC1; p=reject; pct=90; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; sp=reject;
MX Records
10 → alt4.aspmx.l.google.com
5 → alt1.aspmx.l.google.com
5 → alt2.aspmx.l.google.com
1 → aspmx.l.google.com
10 → alt3.aspmx.l.google.com
🌍 Other TLDs ?Other top-level domain variants of this domain name and their availability. 18 active 5 available
▼
.com ●
.net ●
.org ●
.info Available
.io ●
.co ●
.dev current
.app ●
.me Available
.biz ●
.eu ●
.xyz ●
.fi ●
.se ●
.de ●
.uk ●
.fr ●
.nl ●
.es Available
.it Available
.us Available
.ca ●
.com.au ●
.co.uk ●
📡 Uptime Monitor
▼

Not checked yet — data will appear after the first monitoring run.