🌐
slack.dev 200
🔒 SSL Valid
✨ About this site
This site serves as the official developer hub and resource center for building applications on Slack.
📊 What the data says
The site runs on WordPress and Nginx, managed via Google Tag Manager with an SSL certificate valid until December 2026. It currently returns an HTTP 200 status, with performance scores of 68 on mobile and 67 on desktop.
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 49d
Domain Expires When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 118d
Hosting The company and location where this website's server is physically located.Read more →
Automattic, Inc
Security Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
0/3
IP Address The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
192.0.66.150
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
68
mob
Uptime
100%
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability. 68
▼
Mobile
Score
Accessibility
Best Practices
SEO
LCP
5.71s
CLS
0.005
FCP
3.61s
TTFB
0.03s
TBT
196ms
SI
3.61s
Desktop
Score
Accessibility
Best Practices
SEO
LCP
1.40s
CLS
0.014
FCP
0.60s
TTFB
0.01s
TBT
722ms
SI
1.66s
Checked: 2026-09-05 18:33:12.075863 · View on PageSpeed
Tech Stack Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 3
▼
📊 Analytics
Google Tag Manager
📝 CMS
WordPress 7.1.3
🖥️ Web Server
Nginx
CMS Details WordPress
▼
🎨 Theme
Octothorpe Theme (octothorpe-theme)
🏗️ Page Builder
Gutenberg (Block Editor)
🔌 Plugins (4)
Jetpack
Octothorpe Core
Prismatic
Yoast SEO
Screenshot
2026-09-02
▼
Captured: 2026-09-02 13:52:49 · 11.3 KB
DNS Records DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
▼
| A (IPv4) | 192.0.66.150 |
| NS | dns1.p05.nsone.netdns2.p05.nsone.netdns3.p05.nsone.netdns4.p05.nsone.netns01.slackdns.comns02.slackdns.comns03.slackdns.comns04.slackdns.com |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
▼
| Registrar | MarkMonitor Inc. |
| Registered | 2019-02-12 |
| Expires | 2027-02-12 (in 118 days) |
| Last Updated | 2025-10-10 |
| Status | client delete prohibitedclient transfer prohibitedclient update prohibited |
SSL Certificate Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
▼
| Subject (CN) | slack.dev |
| Issuer | Let's Encrypt |
| Valid From | 2026-09-06 |
| Valid Until | 2026-12-05 (49 days left) |
| SANs (2) | slack.devwww.slack.dev |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
▼
| Status | 200 |
| Server | nginx |
| Content-Type | text/html; charset=UTF-8 |
| Final URL | https://slack.dev/ |
| x-powered-by | WordPress VIP <https://wpvip.com> |
| cache-control | max-age=300, must-revalidate |
| x-cache | STALE |
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 | 192.0.66.150 |
| Provider | Automattic, Inc |
| Organization | Automattic, Inc |
| ASN | AS2635 |
| Location | San Francisco, California, US |
| Coordinates | 37.7749, -122.4194 |
Security Score
F (1/7)
▼
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 9 sitemaps (index) pages |
| Last modified | 2026-10-08T17:00:46+00:00 |
Social & Meta Tags
Complete
▼
| Title | Developer Hub | Slack Developers |
| Description | Build context-aware AI apps and agents with Slack, the work operating system. Get tools, documentation, community, and learning resources for developers. |
| OG Title | Developer Hub | Slack Developers |
| OG Description | Build context-aware AI apps and agents with Slack, the work operating system. Get tools, documentation, community, and learning resources for developers. |
| OG Image | https://d34u8crftukxnk.cloudfront.net/slack.dev/prod/og-default.jpg |
| OG Type | website |
| OG Site Name | Slack Developers |
| Twitter Card | summary_large_image |
| Canonical URL | https://slack.dev/ |
| Language | en-US |
Mail Security Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
▼
| SPF | Not set |
| DMARC | Not set |
Other TLDs Other top-level domain variants of this domain name and their availability. 16 active 6 for sale 1 available
▼
Uptime Monitor
▼
| Current Status | 🟢 Online |
| HTTP Status | 200 |
| Response Time | 21ms |
| Last Checked | 2026-10-15 15:46:51.80727 |
| Uptime (30d) | 100% |
Similar Sites
4
▼
Similarity based on content analysis. More results appear as more domains are indexed.