Last updated: August 2026
Global rank: Worldwide · 2026-08
#90,149
AI visibility: Grade A
85
SEO health: Latest audit
96
Visits
0
per month, estimated
Keywords
0
ranking in Google
Organic share
0%
of all search traffic
LLMS.txt
Published
115 lines AI engines can read
You're seeing the free preview of polyfill-fastly.net
polyfill-fastly.net Web Traffic Statistics
Key findings
- polyfill-fastly (Web Development) is ranked #90,149 worldwide in our August 2026 domain ranking, inside the top 100,000, down 1,681 places from #88,468 in July 2026.
- Its AI visibility score is 85 out of 100 (grade A), with a published llms.txt of 115 lines.
- Its last technical audit scored 96/100, with "Create a robots.txt file" the highest-priority fix.
| Month | Rank | Move |
|---|---|---|
| August 2026 | #90,149 | ▼ 1,681 |
| July 2026 | #88,468 | ▼ 5,225 |
| June 2026 | #83,243 | — |
| May 2026 | #83,243 | ▼ 14,498 |
| April 2026 | #68,745 | ▼ 6,138 |
| March 2026 | #62,607 | ▼ 10,159 |
| February 2026 | #52,448 | — |
What this company does
Fastly Polyfill operates as a service that listens for requests specifying particular browser capabilities. Upon receiving such a request, it analyzes the user agent or other indicators from the incoming browser to determine which features are missing. It then assembles and returns a minimal set of polyfills tailored exactly to those gaps. This means no extra scripts are included that the browser already handles on i…
Our read on the site
Excellent! Strong performance and SEO.
polyfill-fastly.net 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.
polyfill-fastly.net AI Visibility
On our AI visibility scale polyfill-fastly.net 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.
polyfill-fastly.net LLMS.txt
The llms.txt on polyfill-fastly.net runs to 115 lines (4,586 characters) across 12 sections, last generated in April 2026. It introduces the site as "Polyfill Fastly". It tells AI engines the business works in Web Development, Software as a Service and JavaScript Libraries. It describes 2 products, including Polyfill Service and Browser Feature Detection. The audience it names is Developers, Businesses, Webmasters, aged 25-54 (Global). Technologies it mentions include JavaScript, Node.js, AWS, GitHub and HTML5. The keywords it claims start with "Fastly Polyfill", "browser features", "polyfills" and "web upgrade".
Status
Published
AI engines can read it
Lines
115
In the file
Size
4.6K
Characters
Sections
12
Updated Apr 4, 2026
What the file says
# Polyfill Fastly ## About Polyfill Fastly is a cutting-edge service that provides essential polyfills tailored to the specific needs of browsers. By intelligently assessing browser requests, it ensures that users receive only the necessary features, enhancing web performance and compatibility. This service is particularly valuable for developers looking to optimize their web applications across various platforms, ensuring a seamless user experience. **Areas of Work:** Web Development, Software as a Service, JavaScript Libraries ## Things to Remember - **Website:** https://polyfill-fastly.net - **Address:** Not Available, San Francisco, USA - **Contact:** [email protected] - **Phone:** +1-415-555-0199 - **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 - **Polyfill Service** (Contact for pricing): A service that delivers only the necessary polyfills based on browser requests to enhance web performance. - **Browser Feature Detection** (Contact for pricing): A tool that detects browser capabilities and serves appropriate polyfills to ensure compatibility. ## Services ## Keywords Fastly Polyfill, browser features, polyfills, web upgrade, automatic polyfills, service for browser polyfills, polyfills for sp
Sections in the file
Areas of work
Keywords it claims
Technologies
Products it tells AI about
- Polyfill ServiceContact for pricing
- Browser Feature DetectionContact for pricing
Competitors it names
Audience it targets
Developers, Businesses, Webmasters · 25-54 · Global
Company type
Private · actively hiring
polyfill-fastly.net SEO Audit
The latest technical audit of polyfill-fastly.net scored 96 out of 100 overall. All 3 sub-scores are 90 or above. The audit makes 10 recommendations in all, and 4 of the 4 listed first are rated high priority or critical.
Overall
Excellent
SEO
Excellent
Performance
Excellent
Accessibility
Excellent
Fix these first
- CriticalCreate a robots.txt file
- CriticalImplement a sitemap.xml
- HighOptimize page titles and meta descriptions
- HighEnhance mobile-friendliness
6 more recommendations, with the exact changes and the pages they apply to, are in the full report.
polyfill-fastly.net Competitors and Alternatives
polyfill-fastly's company profile names polyfill.io, babeljs.io and corejs.org as competitors. Its own llms.txt adds cdnjs.com and unpkg.com. Outside its market, the domains ranked closest to it in our worldwide ranking are google.co.je, visitmaryland.org, europa-uni.de and qeeq.com.
polyfill-fastly.net Company Profile
Fastly Polyfill operates as a service that listens for requests specifying particular browser capabilities. Upon receiving such a request, it analyzes the user agent or other indicators from the incoming browser to determine which features are missing. It then assembles and returns a minimal set of polyfills tailored exactly to those gaps. This means no extra scripts are included that the browser already handles on i…
polyfill-fastly was founded in 2020, about 6 years ago, and is headquartered in San Francisco, United States. Its workforce is listed as between 51 and 200 employees. Its profile files it under Web Development, with further tags for Software as a Service, JavaScript Libraries and B2B. Products on record for it: Polyfill Service and Browser Feature Detection. Reported revenue is $5M (2023). Its tagline reads: "Upgrade the web. Automatically.".
- Sector
- Web Development
- Headquarters
- San Francisco, United States
- Founded
- 2020
- Employees
- 51-200
- Revenue
- $5M (2023)
- Funding
- Not Disclosed
- Products
- Polyfill Service, Browser Feature Detection
polyfill-fastly.net 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.
polyfill-fastly.net 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
polyfill-fastly.net 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 polyfill-fastly.net 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 polyfill-fastly.net
Neighbours of #90,149 in our worldwide ranking — each with its own report.
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