Internet conditions in Istanbul, Turkey

Measured as the district of Fatih, IstanbulLocal time Europe/IstanbulMeasured every hour since February 2019Data to 16 Jul 2026
Sites
Grade within Turkey
Atop fifth of 145 districts
High confidence · the district’s own measurement
Score
Connectivity score
55/ 100
55th percentile worldwide · 18th of 145 in Turkey
Conditions
Typical week
206ms latency
Jitter 64 ms · steadier than 67% of districts worldwide
Sites
Disruptions, last 12 months
0episodes
No episode recorded
Conditions

Where this is

The district the measurement describes.

District outline, KASPR boundary layer

Conditions

The week, hour by hour

Chance of a rough hour, local time. Darker is rougher.

00061218
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Steadiest Wed 03:00 (23% chance of a rough hour)Roughest Fri 18:00 (74%)Swing 8.7 points: the hour of the week matters a little here
Score

What makes the score

Five parts, each a percentile among scored districts worldwide (100 = best). The second mark is the same part ranked within Turkey.

Speed
53 · 87
Stability
46 · 48
Evening
19 · 61
Reliability
100 · 100
Trend
79 · 58
worldwide percentilewithin TurkeyWeights 30 / 25 / 20 / 20 / 5
Score

Two years of months

Monthly mean latency and jitter. The connectivity index compares responding addresses with the district’s own norm.

2137622593Jul2025Jul2026
latency, msjitter, msConnectivity index +7.6% against a year earlier
Sites

Disruptions

Falls in responding addresses against the district’s own baseline. The record says when, where and how deep, not why.

No disruption episode since July 2024.

Worst hours of a typical week: Fri 18:00, Fri 16:00, Fri 17:00. Chance of a rough hour at the peak: 74%.

Sites

Other cities in Turkey

Grades within each country. Each links to its own page.

DAnkara218 ms

All 100 cities →

What to do with this

Three ways in, one per product.

Check your own locations

Paste your sites or offices and get a grade and a report for each. The first look is free.

Open the location check →

When to connect from Istanbul

Pick the people on a call or the audience for a post and see the steadier hours, on the web or in Slack.

Open KASPR Sense →

Monitor Istanbul

Alerts the moment the district breaks, the full history, and the data behind this page in the dashboard.

Explore the dashboard →

Questions people ask

Is the internet in Istanbul good?
By world standards Istanbul sits in the 55th percentile of 15,460 scored districts, with 206 ms typical latency and 64 ms jitter. Within Turkey it ranks 18th of 145, in the top fifth.
When is the internet in Istanbul worst?
The roughest slot of a typical week is Fri 18:00, when the chance of a rough hour peaks at 74%. The steadiest is Wed 03:00 at 23%. Between them, the hour of the week matters a little here.
Were there internet outages in Istanbul recently?
No disruption episode in the twelve months to the data vintage: responding addresses stayed within the district’s normal band every day.
How is this measured?
KASPR sends round-trip requests to geolocated IPv4 addresses from the outside, every hour since February 2019, and aggregates the answers by district. No apps, no speed tests, the same method everywhere. The figures describe the district a city centre falls in, at one data vintage.

Source: KASPR Datahaus (pulse.kasprdata.com) · Data to 2026-07-16 · the measurement records timing and depth, not cause · How KASPR measures