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si.com

HTTPS HTTP/2 Gzip Crawled in 41,941ms · June 28, 2026 03:47 UTC

si.com Website Overview & Technology Report

🤖 AI Summary
We performed a comprehensive analysis of si.com on 2026-06-28. The website returned an HTTP 200 status code with a server response time of 3800ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 1939 KB, and the site is served behind a CDN (Content Delivery Network). Warning: The website does not have a valid SSL certificate. Visitors may see security warnings in their browser, and data transmitted to and from this website is not encrypted. The security headers analysis reveals a score of 15/100 (poor). The following security headers are properly configured: Referrer-Policy. However, the site is missing Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options, and Permissions-Policy, which could expose the site and its users to cross-site scripting (XSS), clickjacking, and other web-based attacks. Our technology detection scan identified 6 technologies across 5 categories powering si.com. The detected stack includes React, Vite, Microsoft Clarity, Google Tag Manager, Google Fonts, and Adobe Fonts. The UI is built with React. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, si.com receives an overall trust score of 61/100, classified as "Likely Safe".
61
/ 100
Trust Score
15
/ 100
Security Headers
HTTP Response
Status200 OK
Response Time3800ms
ProtocolHTTP/2
Page Size1939 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
ServerCloudFront
Total Requests417
3rd Party Domains17
Redirect1 hop(s)
Detected Technologies (6)
⚛️ React 🔨 Vite 📊 Microsoft Clarity 🏷️ Google Tag Manager 🔤 Google Fonts 🔤 Adobe Fonts
Security Headers
Content-Security-Policy
Not set
Strict-Transport-Security (HSTS)
Not set
X-Frame-Options
Not set
X-Content-Type-Options
Not set
Referrer-Policy
Set ✓
Permissions-Policy
Not set
SSL Certificate
IssuerLet's Encrypt
Issuer FullcountryName=US, organizationName=Let's Encrypt, commonName=E7
SubjectcommonName=si.com
Type
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_128_GCM_SHA256
Algorithm
Issued
Expires— (? days)
SANs

si.com Trust Score & Safety Analysis

🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, si.com receives a trust score of 61/100, which places it in the "Likely Safe" category. This score is calculated by evaluating multiple factors including SSL certificate validity, domain registration history, email authentication protocols, security header configuration, and blacklist status across major threat intelligence databases. The analysis identified several positive trust signals: a valid HTTPS connection protecting data in transit, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a quarantine policy, and DKIM (DomainKeys Identified Mail) providing cryptographic email verification. Areas of concern include: the absence of a Content-Security-Policy header, which leaves the site more vulnerable to cross-site scripting (XSS) attacks, no X-Frame-Options header, which could allow the site to be embedded in malicious iframes (clickjacking), the domain's WHOIS information is hidden behind a privacy service, making it harder to verify the owner's identity, and DNSSEC is not enabled, leaving DNS queries vulnerable to spoofing attacks. While these issues don't necessarily indicate malicious intent, they represent areas where the website's security posture could be improved. We checked si.com against 8 major blacklist databases including Google Safe Browsing, Phishtank, Urlhaus, Openphish, Dnsfilter, Spamhaus Dbl, Surbl, and Virustotal. The domain passed all 8 checks with a clean status, meaning it has not been flagged for phishing, malware distribution, spam, or other malicious activities by any of the tested threat intelligence providers.
61
/ 100
Likely Safe
Trust Signals
Valid HTTPS
SPF configured
DMARC configured (p=quarantine)
DKIM configured
⚠️ DNSSEC not enabled
Sitemap.xml found
⚠️ Missing Content-Security-Policy
⚠️ Missing X-Frame-Options
Blacklist Checks (8/8 clean)
Google Safe Browsing clean
Phishtank clean
Urlhaus clean
Openphish clean
Dnsfilter clean
Spamhaus Dbl clean
Surbl clean
Virustotal clean

si.com Technology Stack & Detected Technologies

🤖 AI Summary
Our technology detection engine scanned si.com and identified 6 distinct technologies across 5 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. UI Library: React — handles the user interface rendering and component management for si.com. Build Tool: Vite — bundles and optimizes the JavaScript and CSS assets for si.com. Analytics: Microsoft Clarity — tracks visitor behavior and provides traffic insights for si.com. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for si.com. Fonts: Google Fonts and Adobe Fonts — delivers web fonts for typography for si.com. We also extracted the following tracking identifiers: Google Tag Manager container GTM-TCW5HW. These IDs can be used to identify other websites operated by the same organization.
UI Library
⚛️ React(95%)
Build Tool
🔨 Vite(95%)
Analytics
📊 Microsoft Clarity(95%)
Tag Manager
🏷️ Google Tag Manager(95%)
Fonts
🔤 Google Fonts(95%)🔤 Adobe Fonts(95%)
Tracking IDs
gtm_idGTM-TCW5HW

si.com Performance, Speed & Core Web Vitals

🤖 AI Summary
si.com delivers its homepage in 3800ms (server response time), which is considered slow by industry standards. The total page weight is 1939 KB, and we detected 417 resource requests loading assets from 17 third-party domains. A high number of third-party domains can significantly impact page load time due to additional DNS lookups and TLS handshakes required for each domain. The website uses Gzip compression for text-based assets, achieving an estimated 60.0% reduction in transfer size. This reduces bandwidth usage and improves page load times, especially for visitors on slower connections. Asset minification status: 0 out of 2 CSS files and 0 out of 4 JavaScript files are minified. Minifying the remaining 6 unminified file(s) could further reduce page weight by 10-30% for those assets. Minification is a best practice that reduces download sizes without affecting functionality. The site is served through a Content Delivery Network (CDN), which caches static assets at edge servers around the world. This means visitors from different geographic regions receive content from the nearest edge server, significantly reducing latency. CDN usage is particularly important for websites with a global audience, as it can reduce page load times by 40-60% for distant visitors. From an environmental perspective, each page view of si.com produces approximately 0.95g of CO₂, earning a carbon rating of F. The website's carbon footprint could be reduced by optimizing images, enabling compression, reducing third-party scripts, and leveraging caching. For reference, the average web page produces about 0.5g of CO₂ per page view. The page weight of 1939 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for si.com. This typically means the site doesn't have enough real-world Chrome user traffic to generate statistically significant field data, or the domain is not included in the CrUX dataset. Core Web Vitals (LCP, INP, CLS) are important Google ranking factors that measure real user experience.
Core Web Vitals data not available
Requires CrUX API key configuration
Carbon Footprint
CO₂ per page view0.95g
RatingF
Page Weight & Optimization
HTML Size1939 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests417
3rd Party Domains17
CSS Minified0/2
JS Minified0/4

si.com DNS Records, Email Authentication & Domain Registration

🤖 AI Summary
si.com resolves to the IPv4 address 44.241.188.24, but does not support IPv6. IPv6 adoption is increasingly important as IPv4 address space becomes exhausted, and some ISPs and regions are transitioning to IPv6-only connectivity. The domain has 2 A record(s) configured. The domain name system is managed by 4 name servers: ns-1157.awsdns-16.org, ns-1819.awsdns-35.co.uk, ns-474.awsdns-59.com, and ns-741.awsdns-28.net. Having 4 name servers provides good redundancy — if one fails, the others can continue serving DNS queries. The choice of name servers often indicates the DNS hosting provider or CDN service being used. Email for si.com is handled by Google Workspace with 5 MX records configured: aspmx.l.google.com, alt1.aspmx.l.google.com, and alt2.aspmx.l.google.com and 2 more. Multiple MX records provide failover redundancy — if the primary mail server is unavailable, email will be routed to the next available server. SPF (Sender Policy Framework) is configured, which specifies which mail servers are authorized to send email on behalf of this domain. This helps prevent email spoofing and improves email deliverability. DMARC (Domain-based Message Authentication, Reporting and Conformance) is configured with a quarantine policy — a moderate setting, directing unauthorized emails to spam/junk folders. DKIM (DomainKeys Identified Mail) is configured, adding a cryptographic signature to outgoing emails that receiving servers can verify to confirm the email hasn't been tampered with in transit. DNSSEC is not enabled for si.com. While not critical for most websites, DNSSEC adds an important security layer by ensuring DNS responses haven't been tampered with during transit. Enabling DNSSEC is recommended for domains handling sensitive data or financial transactions. Our subdomain enumeration scan discovered 2 active subdomains for si.com: apps.si.com and www.si.com. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
44.241.188.24
35.83.190.225
NS
ns-1157.awsdns-16.org
ns-1819.awsdns-35.co.uk
ns-474.awsdns-59.com
ns-741.awsdns-28.net
MX
aspmx.l.google.com
alt1.aspmx.l.google.com
alt2.aspmx.l.google.com
alt3.aspmx.l.google.com
alt4.aspmx.l.google.com
Email & Authentication
SPF
DMARC p=quarantine
DKIM
DNSSEC
MX ProviderGoogle Workspace
Registrar
Organisation
Country
Contact
Registered
Expires
Domain Age
IPv6 SupportNo
Subdomains (2 found)
apps.si.com www.si.com

si.com Page Content, Images & Accessibility

🤖 AI Summary
The homepage of si.com contains 2,459 words of visible text content. This is a substantial amount of content that provides good opportunities for search engine indexing. The page is structured with 17 H2 headings, 97 H3 headings, 24 H4 headings. The page includes 103 images. 78 images (76%) are missing alt text attributes, which is a significant concern for both accessibility and SEO. Screen readers rely on alt text to describe images to visually impaired users, and search engines use alt text to understand image content. Only 24% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 247 internal links pointing to other pages on the same domain and 40 external links pointing to third-party websites. The high number of internal links suggests a well-interconnected site structure, which helps search engines discover and crawl all pages efficiently. There are 4 external JavaScript files, 2 CSS stylesheets, and 0 iframes on the page. The site implements the following web standards and features: XML Sitemap (helps search engines discover all pages), Schema.org structured data (BreadcrumbList, ImageObject, ListItem, NewsArticle, Organization, Person, WebPage, WebPageElement, and WebSite), and RSS feed for content syndication. Notable missing features: robots.txt. Adding these could improve search engine discoverability and rich result eligibility. We detected the following payment methods accepted on si.com: Visa and Discover. Offering multiple payment options including credit cards and digital wallets improves customer trust and can increase conversion rates. The website has social media presence across 4 platforms: Twitter (@espnW), Instagram (@iainmacbets), Youtube (@SportsIllustrated), and Tiktok (@somoscowboys). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
2,459
Words
103
Images
24%
Alt Text Score
1939
Page Size (KB)
Content Structure
H1
H2 Tags17
H3 Tags97
H4 Tags24
H5 Tags0
H6 Tags0
Internal Links247
External Links40
Assets & Features
JavaScript Files4
JS Minified0/4
CSS Files2
CSS Minified0/2
Iframes0
Images103
Missing Alt78
SitemapYes ✓
Robots.txtNo
PWANo
AMPNo
RSS FeedYes ✓
Schema.org Types
BreadcrumbListImageObjectListItemNewsArticleOrganizationPersonWebPageWebPageElementWebSite
Payment Methods Detected
💳 Visa💳 Discover
Social Media Presence
Twitter: @espnWInstagram: @iainmacbetsYoutube: @SportsIllustratedTiktok: @somoscowboys

si.com SEO Analysis, Meta Tags & Open Graph

🤖 AI Summary
The title tag for si.com is good at 18 characters: "Sports Illustrated". The length is acceptable, though it may be slightly truncated in some search result displays. The meta description is 175 characters (slightly long): "Sports Illustrated, SI.com provides sports news, expert analysis, highlights, stats and scores for the NFL, NBA, MLB, NH...". Google typically displays up to 155-160 characters of the meta description in search results. A compelling meta description with a clear call-to-action can significantly improve click-through rates from search results. The canonical url is correctly set to https://www.si.com/, preventing duplicate content issues, the page language is declared as en-us, the meta robots directive is set to max-image-preview:large, and a favicon is configured. Open Graph meta tags are configured with 4/4 recommended fields: OG title ("Sports Illustrated..."), OG description, OG image (social sharing thumbnail), OG type (website). These tags control how the page appears when shared on Facebook, LinkedIn, and other social media platforms that support the Open Graph protocol. A Twitter Card of type summary_large_image is configured, which controls how links appear when shared on Twitter/X. The "summary_large_image" type displays a large image preview, which typically generates higher engagement rates than the basic card type. The site implements Schema.org structured data with the following types: BreadcrumbList, ImageObject, ListItem, NewsArticle, Organization, Person, WebPage, WebPageElement, and WebSite. Structured data helps search engines understand the page content and can enable rich results (featured snippets, knowledge panels, star ratings) in Google search results, which can significantly increase click-through rates.
Google SERP Preview
Sports Illustrated
https://si.com
Sports Illustrated, SI.com provides sports news, expert analysis, highlights, stats and scores for the NFL, NBA, MLB, NHL, college football, soccer, fantasy, gambling and more
Meta Tags
TitleSports Illustrated...
Title Length18 chars
Meta Desc Length175 chars
H1
Languageen-US
Canonicalhttps://www.si.com/
Meta Robotsmax-image-preview:large
Meta Keywordsnot set
Schema.org & Social
Schema TypesBreadcrumbList, ImageObject, ListItem, NewsArticle, Organization, Person, WebPage, WebPageElement, WebSite
OG Typewebsite
OG ImageSet ✓
Twitter Cardsummary_large_image
FaviconSet ✓
Open Graph Preview
si.com
Sports Illustrated
Sports Illustrated, SI.com provides sports news, expert analysis, highlights, stats and scores for the NFL, NBA, MLB, NHL, college football, soccer, fantasy, ga

si.com Data Breaches, History, Green Hosting & Mobile Apps

🤖 AI Summary
This section shows additional intelligence about si.com including data breach history (via HaveIBeenPwned), web archive history (Wayback Machine), green/eco-friendly hosting status, and mobile app presence in the iOS App Store.
No Data Breaches Found
This domain has not appeared in any known data breaches.