Last updated: September 2026
Global rank: Worldwide · 2026-09
#53,651
AI visibility: Grade A
85
SEO health: Latest audit
87
Visits
0
per month, estimated
Keywords
0
ranking in Google
Organic share
0%
of all search traffic
LLMS.txt
Published
136 lines AI engines can read
You're seeing the free preview of hd21.com
hd21.com Web Traffic Statistics
Key findings
- hd21 (Adult Entertainment) is ranked #53,651 worldwide in our September 2026 domain ranking, inside the top 100,000, down 7,155 places from #46,496 in August 2026.
- Its AI visibility score is 85 out of 100 (grade A), with a published llms.txt of 136 lines.
- Its last technical audit scored 87/100, with "Implement Robots.txt" the highest-priority fix.
| Month | Rank | Move |
|---|---|---|
| September 2026 | #53,651 | ▼ 7,155 |
| August 2026 | #46,496 | ▲ 735 |
| July 2026 | #47,231 | ▲ 48,546 |
| June 2026 | #95,777 | — |
| May 2026 | #95,777 | ▼ 9,625 |
| April 2026 | #86,152 | ▼ 33,310 |
| March 2026 | #52,842 | ▼ 4,594 |
| February 2026 | #48,248 | — |
What this company does
HD21.com runs a website that specializes in free HD porn videos and hot sex movies for online viewing. The site collects and organizes adult content from various sources, presenting it in a format that supports high definition playback across different devices. Visitors can explore numerous categories ranging from amateur scenes to professional productions, with options to watch content in full or skip to preferred p…
Our read on the site
Good foundation with room for improvement. 1 high-priority issue.
hd21.com Traffic and Visitor Engagement
Paid search ads bring 100% of it — more than its organic results do.
Monthly visits
0
Latest estimate
Change
No monthly history yet
It starts building from the first scan
Organic visits
0
0% of all traffic
Paid visits
0
No paid search detected
Organic vs paid
0%
0%
We don't hold a month-by-month history for this domain yet.
The traffic dashboard builds one from the first scan onwards.
hd21.com AI Visibility
On our AI visibility scale hd21.com earns 85 of 100 points, a grade A. It takes full marks for LLMS.txt and Structured data. The biggest gap is Crawlability, at 0 of 10 points (robots ✗ · sitemap ✗), worth 10 points if closed. It also loses points on Company profile (22/25) and SEO health (18/20).
Grade A
Scored from this domain's own data — llms.txt, profile completeness, technical health, crawlability and structured data.
Present
7/8 core fields
92/100
robots ✗ · sitemap ✗
Detected
Fix these first
- → Complete your company profile so AI answers about you stay accurate.
- → Add robots.txt and sitemap.xml so AI crawlers can read you.
hd21.com LLMS.txt
The llms.txt on hd21.com runs to 136 lines (6,326 characters) across 12 sections, last generated in March 2026. It introduces the site as "hd21 - Digital Engagement Solutions". It tells AI engines the business works in Technology, Digital Marketing and Software Development. It describes 3 products, with prices such as Customer Relationship Management Software at Starting at $50/month. Services it lists include Digital Strategy Consulting and Implementation Support. The audience it names is Professionals, Businesses, Marketing Teams, aged 25-54 (Global). Technologies it mentions include React, Node.js, AWS, PostgreSQL and MongoDB. The keywords it claims start with "digital engagement", "customer relationship management", "CRM software" and "analytics tools".
Status
Published
AI engines can read it
Lines
136
In the file
Size
6.3K
Characters
Sections
12
Updated Mar 22, 2026
What the file says
# hd21 - Digital Engagement Solutions ## About hd21 is a forward-thinking technology company specializing in digital engagement solutions. We provide a suite of tools that enable businesses to enhance their online presence and connect with customers effectively. Our services cater to diverse industries, helping clients leverage technology to drive growth and improve customer satisfaction. With a commitment to innovation, hd21 empowers organizations to thrive in the digital landscape. **Areas of Work:** Technology, Digital Marketing, Software Development ## Things to Remember - **Website:** https://hd21.com - **Address:** 123 Market St, Suite 456, San Francisco, CA, United States - **Contact:** [email protected] - **Phone:** +1-415-555-0123 - **Hours:** Mon-Fri: 9AM-5PM - **Timezone:** America/Los_Angeles - **Currency:** USD - **Company Type:** Private - **Employees:** 50 employees - **Revenue:** $5M - **Hiring Status:** Yes, actively hiring ## Products - **Digital Engagement Platform** (Contact for pricing): A comprehensive platform to boost online customer interactions and engagement through personalized content and real-time analytics. - **Customer Relationship Management Software** (Starting at $50/month): A robust CRM tool designed to manage customer interactions, streamline sales processes, and enhance customer retention. - **Analytics and Reporting Tools** (Contact for pr
Sections in the file
Areas of work
Keywords it claims
Technologies
Products it tells AI about
- Digital Engagement PlatformContact for pricing
- Customer Relationship Management SoftwareStarting at $50/month
- Analytics and Reporting ToolsContact for pricing
Services it tells AI about
- Digital Strategy ConsultingContact for quote
- Implementation SupportContact for quote
Competitors it names
Audience it targets
Professionals, Businesses, Marketing Teams · 25-54 · Global
Company type
Private · actively hiring
hd21.com SEO Audit
The latest technical audit of hd21.com scored 87 out of 100 overall. Performance is its weakest area at 75, while SEO scores highest at 92. The audit makes 10 recommendations in all, and 4 of the 4 listed first are rated high priority or critical.
Overall
SEO
Excellent
Performance
Accessibility
Fix these first
- CriticalImplement Robots.txt
- CriticalCreate and Submit Sitemap
- HighOptimize Images
- HighMinimize HTTP Requests
6 more recommendations, with the exact changes and the pages they apply to, are in the full report.
hd21.com Competitors and Alternatives
hd21's company profile names pornhub.com, xvideos.com and xhamster.com as competitors. Its own llms.txt adds competitor1.com, competitor2.com, competitor3.com, hubspot.com and salesforce.com. Outside its market, the domains ranked closest to it in our worldwide ranking are zandahealth.com, teapuesto.pe, nfu.edu.tw and crnagora.net.
hd21.com Company Profile
HD21.com runs a website that specializes in free HD porn videos and hot sex movies for online viewing. The site collects and organizes adult content from various sources, presenting it in a format that supports high definition playback across different devices. Visitors can explore numerous categories ranging from amateur scenes to professional productions, with options to watch content in full or skip to preferred p…
hd21 was founded in 2020, about 6 years ago. Its profile files it under Adult Entertainment, with further tags for Streaming Media, Web Technology and Freemium Model. Products on record for it: High Definition Adult Videos, User-Generated Content and Premium Membership Options. Its tagline reads: "Free HD Porn Videos and Hot Sex Movies - HD21.com".
- Sector
- Adult Entertainment
- Headquarters
- Not Available, Not Available
- Founded
- 2020
- Employees
- Not Disclosed
- Revenue
- Not Disclosed
- Funding
- Not Disclosed
- Products
- High Definition Adult Videos, User-Generated Content, Premium Membership Options
hd21.com Traffic by Country
Which markets this brand actually serves, and where the web links to it from.
Top customer markets
AI estimate · live webWe only measure visitor geography for domains whose analytics are connected to us. For everyone else this is read live from the web and shown as an estimate — never mixed in with the measured numbers.
No market breakdown available for this brand.
Where its backlinks come from
Measured. The country each linking site is hosted in — a real signal of which regions know this brand.
No backlink sample for this domain yet.
Backlink Analytics collects one on its first run.
hd21.com Organic Keywords
The searches this domain already ranks for, and how much traffic they bring it.
Ranking keywords
0
Found in Google for this domain
Visits they bring
0
Estimated organic visits a month
Top ranking keywords
No ranked-keyword data cached for this domain yet.
Ranked Keywords pulls the full list on its first run.
What it ranks for
hd21.com Backlink Analytics
Who vouches for this domain. Strong, varied links are still the clearest signal of authority — to search engines and to AI engines that cite sources.
We haven't run a backlink crawl for hd21.com yet, so there are no link counts to show. Backlink Analytics builds the profile on its first run and it appears here after that.
—
links on file
Companies ranked next to hd21.com
Neighbours of #53,651 in our worldwide ranking — each with its own report.
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