Technology · Font scripts
1,637 websites in the live index use sIFR as of October 2026. Download the full list of sIFR websites with website, company, country and language.
SourceAs of October 31, 2026, TechLeads detects sIFR on 1,637 websites.
Sample results for sIFR. Description is shown under each title.
| Rank | Website | Title · Description | Company | Country | Language |
|---|---|---|---|---|---|
| #19,721 | findmadeleine.com | findmadeleine.com | 526: Invalid SSL certificate | Findmadeleine | US | en-US |
| #39,640 | uni-sofia.bg | Начало - Софийски университет "Св. Климент Охридски"Софийски Университет Св. Климент Охридски | - | - | - |
| #47,433 | armoryonpark.org | Park Avenue Armory in NYC | Official SitePark Avenue Armory supports unconventional works by a diverse range of artists in the performing and visual arts. Explore upcoming performances. | - | - | - |
| #91,748 | tnstate.edu | Tennessee State University | Excellence is our HabitTennessee State University (TSU) is a public university and HBCU located in the heart of Nashville, TN. TSU offers a myriad of degrees. Visit Us and Step into Your Future at TSU! | - | - | - |
| #100,235 | ifta.ie | IFTA | Irish Film & Television Academy | Irish Film & Television AwardsOfficial site of the Irish Film and Television Academy and Awards. Information on the Irish Film & Television Awards (IFTAs) and IFTA Academy including photographs, events and screenings, press releases and Membership details. | - | - | - |
| #133,806 | bestbets.org | bestBETs | - | - | - |
| #500,000 | hospitaledmundovasconcelos.com.br | Hospital Edmundo VasconcelosO Hospital Edmundo Vasconcelos atende com excelência e é referência em mais de 50 especialidades médicas através de seu Centro Cirúrgico, Ambulatório Médico, Pronto Socorro e Centros de Diagnóstico, conheça. | - | - | - |
| #541,169 | unnaturalcauses.org | UNNATURAL CAUSES | CALIFORNIA NEWSREELThis four-hour documentary series premiered nationally on PBS in Spring 2008, and will be rebroadcast Fridays at 10pm, October 9 through 30. Produced by California Newsreel in association with Vital Pictures, Inc. Presented by the National Minority Consortia of public television Public Impact Campai | - | - | - |
| #704,522 | profitmagazin.com | Dobrodo�li | Profit | - | - | - |
| #1,000,000 | mychildcarevouchers.co.uk | Childcare Vouchers - The Childcare Voucher scheme that's easier for everyone | - | - | - |
| #1,000,000 | nieniedialogues.com | NieNie Dialogues | - | - | - |
| #2,507,021 | theploughandstars.com | The Plough and Stars Irish Pub, San Francisco, CaliforniaThe Best, Most Authentic Irish Pub in San Francisco: the Home of Traditional Irish Music in the Bay Area. | - | - | - |
| #2,688,918 | redwingsafety.com | Employee Footwear & Workwear PPE Safety Programs | Red Wing For BusinessRed Wing For Business provides safety programs and shoe trucks to protect your employees. Red Wing Boots & Safety Shoes are the highest quality footwear for any workplace that requires safety and comfort all day every day. | - | - | - |
| #3,038,487 | pollentree.com | PollenTree | - | - | - |
| #4,048,141 | interstatebarbecue.com | Interstate Barbecue | Memphis, TN | - | - | - |
| #4,446,644 | homagetobcn.com | Homage to BCN » A Blog About BarcelonaA Barcelona blog about anything relating to the city of Barcelona. I also get people to write their 'perfect days' to share what they love about the city too! | - | - | - |
| #4,476,380 | print-bingo.com | Print-Bingo.com - a Free Bingo Card Generator by PerceptusCreate your own bingo cards. We use PDF files for easy, pretty, printing of up to 1000 pages of custom bingo cards at a time. | - | - | - |
| #4,511,610 | moviesoon.com | 好莱坞电影手册 Moviesoon.com好莱坞电影手册 Moviesoon.com 专业好莱坞电影中心：别人没的我们有，别人有的我们不一样 | - | - | - |
| #5,000,000 | manobalsas.lt | Mano Balsas | - | LT | en |
| #5,000,000 | casafieruluiforjat.ro | Fier Forjat - Casa Fierului ForjatFier Forjat, Porti, Garduri, Mobilier, Balustrade - Porti din fier forjat, garduri din fier forjat, balustrade din fier forjat, paturi din fier forjat, mobilier din fier forjat, gard din fier forjat, balcoane din fier forjat, piese din fier forjat, modele de gard din fier forjat, scaune din fier for | - | - | - |
| #5,000,000 | evolvingsolutions.com.au | Web Design Development & Software Mangement company in Adelaide, South Australia | Evolving SolutionsEvolving Solutions provide website design and development services as well as mobile apps development. | - | - | - |
| #5,000,000 | lcc-wien.at | LCC Wien - Ihr Partner fürs LaufenLCC Wien - Ihr Partner fürs Laufen, Adi Gruber, Praterläufe, Herbstmarathon, Frühlingsmarathon, Silvesterlauf, lauftraining, Stadion, keywords | - | - | - |
| #5,000,000 | dailyreadings.org.uk | Bible Readings | Daily Chapters with CommentsNotes on Daily Bible Readings | Notes by Christadelphians for every day of the year | - | - | - |
| #5,000,000 | ljunatours.ee | Туристическое агентство Ljuna Tours - Туристическое агентство в Таллинне - ГлавнаяЕгипет, Турция, Тенерифе, Греция, Болгария, Грузия, морские круизы, санаторный отдых, санатории Белоруссии, lastminute, горящие предложения, путешествия, скидки, турфирма, акция, путевки, отдых, авиабилеты на чартер, отдых с детьми, билет на самолет, Бразилия, бюро, бюро путешествий, вип отдых, В | - | - | - |
| #5,000,000 | parknfly.ro | Parcare Aeroport Otopeni pe termen lung. Sigur si convenabil. parknfly.roParcare Aeroport Otopeni si Aeroport Baneasa pe termen lung si scurt. Parcarea este pazita si monitorizata video, oferim transfer gratuit. | - | - | - |
Complete sIFR website dataset in CSV. One-time purchase.
sIFR dataset · CSV
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Access all 1,637 sIFR websites with complete contact information in your dashboard.
TechLeads scans public websites and identifies sIFR from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Website counts refresh daily; this page uses data from October 31, 2026. Counts only include websites we have scanned, so they can differ from other providers.
The TechLeads live index currently lists 1,637 websites using sIFR. Open the sample table on this page or download the lead list.
The chart on this page is monthly HTTP Archive crawl detections for sIFR, compared with other Font Scripts technologies. It is not the TechLeads live index.
In the same HTTP Archive category, sIFR is charted against Google Font API, Font Awesome, Twitter Emoji (Twemoji), Typekit, Bootstrap Icons. Live-index co-occurrence on this page is a separate signal.
Companies and websites using sIFR in the TechLeads index include findmadeleine.com, uni-sofia.bg, armoryonpark.org, tnstate.edu, ifta.ie. The full list of 1,637 websites, with company name, country and language, is available as a CSV export.
TechLeads scans public websites and matches sIFR by signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Website counts refresh daily.
Yes. A one-time sIFR dataset is $29 as a CSV. The Growth plan ($79/mo) covers 10 technologies with recurring exports, alerts and API access.
Top-ranked sites on sIFRRank
Monthly detections of sIFR in the HTTP Archive crawl. This is historical crawl coverage, not the TechLeads live website index.
Same HTTP Archive category (Font Scripts), not the whole web. Toggle competitors on or off.
Optional rank bands from the crawl (top 1k through long tail). Missing months are crawl gaps, not uninstalls.
Technologies most frequently detected on the same websites as sIFR. Counts are websites in the live index.
Sites where we first detected sIFR, by week (UTC, weeks start Monday). These are newly detected sites, and the counts follow our discovery coverage.
83
sites newly detected in the last 12 weeks
sIFR replaces short passages of plain browser text with text rendered in your typeface of choice, regardless of whether or not your users have that font installed on their systems. It accomplishes this by using a combination of javascript, CSS, and Flash.
Our comprehensive database contains 1,637 websites using sIFR, making it the most complete sIFR sites list available. This sIFR customer websites directory helps businesses detect websites using sIFR and identify potential leads.
Websites using sIFR commonly also use Modernizr, jQuery, Shockwave Flash Embed, Zendesk, Haravan — reflecting typical sIFR technology stacks.
Our sIFR technology detection system scans millions of websites to identify those powered by sIFR. This list of sites with sIFR includes detailed information such as company names, contact details, social media profiles, and website rankings. Whether you're looking for top websites with sIFR or exploring sIFR adoption trends, our database provides comprehensive insights.
Each entry in our sIFR sites list includes valuable data points: domain name, global ranking, company information, contact details, social media links. This makes it easy to detect websites using sIFR and reach out to potential customers or partners.
Get instant access to the full list of sites with sIFR in CSV format. Our dataset includes all 1,637 sIFR customer websites with complete contact information, perfect for lead generation, market research, and competitive analysis. The data is regularly updated to ensure accuracy and includes the latest sIFR powered websites.
