🌐
getbootstrap.com 200
🔒 SSL Valid
✨ About this site
This website is the official home of a widely used, well-established open-source frontend toolkit designed for web developers and designers. It provides prebuilt CSS and JavaScript components to help build responsive websites quickly. As a foundational tool in modern web development, it is heavily relied upon by developers globally.
📊 What the data says
This fourteen-year-old site is hosted on Cloudflare, GitHub Pages, and Fastly, utilizing the Astro v7.3.2 framework alongside Bootstrap, Varnish, and Google Fonts. It maintains an active HTTP 200 status with HSTS security headers and a valid SSL certificate expiring on December 13, 2026.
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 47d
Domain Expires When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 75d
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 →
104.20.26.6
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. 7
▼
🌐 CDN
Cloudflare
Fastly
🎨 CSS Framework
Bootstrap
⚡ Cache
Varnish
🔤 Font/Icon
Google Fonts
🏭 Generator
Astro v7.3.2
☁️ Hosting
GitHub Pages
Screenshot
Processing...
▼
⏳
Screenshot is being captured...
DNS Records DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
▼
| A (IPv4) | 104.20.26.6172.66.169.22 |
| AAAA (IPv6) | 2606:4700:10::ac42:a9162606:4700:10::6814:1a06 |
| NS | iris.ns.cloudflare.comtom.ns.cloudflare.com |
| MX | 10 alt3.aspmx.l.google.com10 alt4.aspmx.l.google.com5 alt1.aspmx.l.google.com5 alt2.aspmx.l.google.com1 aspmx.l.google.com |
| TXT (2) |
Services configured via TXT:
Yandex
Show all TXT recordsyandex-verification: 92333f69985eb59b v=spf1 a mx include:_spf.google.com -all |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
▼
| Registrar | GoDaddy.com, LLC |
| Registered | 2012-01-10 |
| Expires | 2027-01-10 (in 75 days) |
| Last Updated | 2026-01-11 |
| Status | client delete prohibitedclient renew prohibitedclient transfer prohibitedclient update prohibited |
SSL Certificate Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
▼
| Subject (CN) | getbootstrap.com |
| Issuer | Google Trust Services |
| Valid From | 2026-09-14 |
| Valid Until | 2026-12-13 (47 days left) |
| SANs (2) | getbootstrap.com*.getbootstrap.com |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
▼
| Status | 200 |
| Server | cloudflare |
| Content-Type | text/html; charset=utf-8 |
| Final URL | https://getbootstrap.com/ |
| strict-transport-security | max-age=31536000; includeSubDomains; preload |
| x-content-type-options | nosniff |
| cache-control | max-age=600 |
| cf-ray | a50cb51a1815b87a-IAD |
| x-cache | HIT |
| via | 1.1 varnish |
Security headers HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
Hosting Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
▼
| IP Address | 104.20.26.6 |
| Provider | Unknown |
| Organization | N/A |
| ASN | N/A |
| Location | N/A |
Security Score
D (3/7)
▼
Sitemap & Robots
▼
Open to search engines
This site's robots.txt lets crawlers access its main content. Search engines can index it normally.
No paths are disallowed — everything is crawlable.
| Sitemap | Found 1 sitemaps (index) pages |
Social & Meta Tags
Complete
▼
| Title | Bootstrap · The most popular HTML, CSS, and JS library in the world. |
| Description | Powerful, extensible, and feature-packed frontend toolkit. Build and customize with Sass, utilize prebuilt grid system and components, and bring projects to life with powerful JavaScript plugins. |
| OG Title | Bootstrap |
| OG Description | Powerful, extensible, and feature-packed frontend toolkit. Build and customize with Sass, utilize prebuilt grid system and components, and bring projects to life with powerful JavaScript plugins. |
| OG Image | https://getbootstrap.com/docs/6.0/assets/brand/bootstrap-social.png |
| OG Type | website |
| Twitter Card | summary_large_image |
| Canonical URL | https://getbootstrap.com/ |
| Language | en |
Mail Security Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
▼
| SPF | ✓ Present v=spf1 a mx include:_spf.google.com -all |
| DMARC | Not set |
| MX Records | 10 → alt3.aspmx.l.google.com 10 → alt4.aspmx.l.google.com 5 → alt1.aspmx.l.google.com 5 → alt2.aspmx.l.google.com 1 → aspmx.l.google.com |
Other TLDs Other top-level domain variants of this domain name and their availability. 6 active 17 available
▼
.com
current
.net
●
.org
●
.info
●
.io
Available
.co
●
.dev
Available
.app
Available
.me
Available
.biz
Available
.eu
Available
.xyz
●
.fi
Available
.se
Available
.de
●
.uk
Available
.fr
Available
.nl
Available
.es
Available
.it
Available
.us
Available
.ca
Available
.com.au
Available
.co.uk
Available
Uptime Monitor
▼
Not checked yet — data will appear after the first monitoring run.