State of Website Uptime — 90-Day Reliability Report
By the Is it down checker Editorial Team · Auto-refreshed September 13, 2026 · Open data
TL;DR: Across our catalog of 2,688 monitored websites in 63 categories, we recorded 3,551 distinct outage events affecting 333 sites in the last 90 days , totaling 356d 2h of cumulative downtime among the top 25 most-affected services. The category with the most accumulated downtime in this window was Streaming (490 incidents across 22 sites).
Methodology
Every outage in this dataset is a recorded event in our database — we mark a site as experiencing an incident when our automated HTTPS probe fails for two consecutive checks OR when crowd-sourced user reports spike to 5x or more above a 7-day rolling baseline. Total downtime is computed from incident start time to resolution time. Sites currently ongoing at report-generation are calculated up to the rendering moment. For the full methodology, see our methodology page.
Our HTTP probes run from a single US-based data center region (do-nyc3), so regional outages outside our checker location may be under-represented. Crowd-sourced reports help bridge that gap, but the data here skews toward outages observable from North America.
Outages by category — 90-day rolling
Cumulative downtime per service category, across all sites in our catalog.
| # | Category | Sites affected | Incidents | Total downtime |
|---|---|---|---|---|
| 1 | Streaming | 22 | 490 | 63d 23h |
| 2 | Dev Tools | 31 | 486 | 61d 21h |
| 3 | Utilities | 4 | 309 | 50d 18h |
| 4 | Social Media | 8 | 273 | 48d 10h |
| 5 | Entertainment | 10 | 171 | 41d 17h |
| 6 | Education | 25 | 274 | 32d 9h |
| 7 | Communities | 11 | 316 | 30d 6h |
| 8 | Shopping | 36 | 309 | 27d 14h |
| 9 | Travel | 9 | 85 | 20d 2h |
| 10 | Search Engine | 4 | 171 | 17d 5h |
| 11 | Online Gaming | 11 | 25 | 10d 7h |
| 12 | Message Apps | 7 | 114 | 7d 15h |
| 13 | Sports | 13 | 27 | 7d 6h |
| 14 | ISP | 5 | 15 | 7d 6h |
| 15 | Gaming | 12 | 67 | 6d 10h |
| 16 | Government | 17 | 29 | 6d 9h |
| 17 | Books | 1 | 71 | 6d 6h |
| 18 | Job | 4 | 48 | 6d 4h |
| 19 | Telecom | 14 | 31 | 6d 2h |
| 20 | Fitness | 6 | 13 | 5d 13h |
| 21 | Stock Market Trading | 2 | 8 | 4d 9h |
| 22 | Taxis | 1 | 3 | 3d 17h |
| 23 | News | 12 | 25 | 3d 12h |
| 24 | Health | 11 | 23 | 3d 4h |
| 25 | SaaS | 2 | 19 | 3d 2h |
| 26 | Shipping | 3 | 22 | 2d 22h |
| 27 | Search | 8 | 21 | 2d 21h |
| 28 | 2 | 3 | 2d 13h | |
| 29 | Education SaaS | 3 | 3 | 2d 12h |
| 30 | Cryptocurrency | 5 | 8 | 2d 8h |
| 31 | Automotive | 5 | 15 | 2d 8h |
| 32 | Banking | 3 | 16 | 2d 2h |
| 33 | Real Estate | 1 | 3 | 1d 18h |
| 34 | Artificial Intelligence | 3 | 3 | 1d 18h |
| 35 | Food | 3 | 3 | 1d 11h |
| 36 | SEO Tools | 3 | 10 | 22h |
| 37 | Dating | 3 | 8 | 19h |
| 38 | VPN | 4 | 12 | 18h |
| 39 | Cloud | 2 | 13 | 17h |
| 40 | Grocery | 3 | 3 | 14h |
| 41 | Cell Phone | 1 | 1 | 6h |
| 42 | Insurance | 1 | 3 | 5h |
| 43 | Moving Services | 1 | 1 | 3h |
| 44 | Internet Infrastructure | 1 | 1 | 1h |
Top 25 services by total downtime — 90 days
Sites with the most cumulative downtime over the past 90 days, summed across every detected outage.
| # | Site | Category | Incidents | Total downtime |
|---|---|---|---|---|
| 1 | Con Edison coned.com | Utilities | 305 | 50d 12h |
| 2 | Tencent Video tencent.com | Streaming | 222 | 39d 20h |
| 3 | Weibo weibo.com | Social Media | 138 | 37d 23h |
| 4 | VS Code code.visualstudio.com | Dev Tools | 210 | 36d 20h |
| 5 | KissAnime kissanime.com | Entertainment | 73 | 24d 21h |
| 6 | Petfinder petfinder.com | Communities | 266 | 23d 4h |
| 7 | Neeva neeva.com | Search Engine | 160 | 15d 9h |
| 8 | Youku youku.com | Streaming | 157 | 11d 18h |
| 9 | Framework framework.computer | Shopping | 101 | 11d 12h |
| 10 | IndiGo indigo.in | Travel | 28 | 10d 15h |
| 11 | Citation Machine citation-machine.net | Education | 77 | 10d 5h |
| 12 | NYC DOE nycdoe.org | Education | 117 | 9d 19h |
| 13 | JS Bin jsbin.com | Dev Tools | 84 | 9d 8h |
| 14 | Human Benchmark human-benchmark.com | Entertainment | 70 | 7d 21h |
| 15 | iQIYI iqiyi.com | Streaming | 35 | 7d 7h |
| 16 | ePubPub epubpub.com | Books | 71 | 6d 6h |
| 17 | Kuaishou kuaishou.com | Social Media | 94 | 5d 21h |
| 18 | Inkscape inkscape.org | Dev Tools | 60 | 5d 5h |
| 19 | Mediacom mediacomcable.com | ISP | 4 | 5d 3h |
| 20 | FIFA Online fifaonline.com | Online Gaming | 8 | 4d 22h |
| 21 | Life Time Fitness lifetime.life | Fitness | 4 | 4d 16h |
| 22 | Hilton hilton.com | Travel | 46 | 4d 15h |
| 23 | Monster monster.com | Job | 43 | 4d 3h |
| 24 | Bol.com bol.com | Shopping | 70 | 4d 2h |
| 25 | GoConqr goconqr.com | Education | 12 | 3d 18h |
Top 25 services by incident count — 90 days
Sites with the highest number of distinct outage events in the last 90 days. Many short incidents often signal infrastructure stability issues even when total downtime is moderate.
- Con Edison 305 incidents
- Petfinder 266 incidents
- Tencent Video 222 incidents
- VS Code 210 incidents
- Neeva 160 incidents
- Youku 157 incidents
- Weibo 138 incidents
- NYC DOE 117 incidents
- Framework 101 incidents
- Kuaishou 94 incidents
- JS Bin 84 incidents
- Citation Machine 77 incidents
- KissAnime 73 incidents
- ePubPub 71 incidents
- Bol.com 70 incidents
- Human Benchmark 70 incidents
- Inkscape 60 incidents
- Feishu 59 incidents
- OpenOffice 49 incidents
- Allegro 47 incidents
- Hilton 46 incidents
- Monster 43 incidents
- Spotify 37 incidents
- iQIYI 35 incidents
- Cohost 34 incidents
Citation
If you reference this data in a blog post, paper, or news article, please cite as:
Is it down checker Editorial Team. (2026).
"State of Website Uptime — 90-Day Rolling Reliability Report."
Is it down checker. https://isitdownchecker.com/researchWant a deeper cut of the data? Per-month reports going back to 2025 are at /reports; individual incident timelines are at /outages; and full methodology is documented at /methodology.