TLS 1.3 in 2026: the world, the Russian web, and where the gap really is
The independent top-million survey of June 2026 puts TLS 1.3 support at 70.4%. In our own check of 27 August the zones run level: .ru at 83.9%, .com at 80.7%, and not one host in either supports legacy 1.0 or 1.1.
The Russian web only trails inside the under-configured part of the sample: among hosts graded B or C, six in ten Russian ones cannot speak TLS 1.3 against fewer than four in ten for .com.
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What can be measured here, and what cannot
Comparing the world and the Russian web on TLS 1.3 support is possible. Speaking of adoption velocity is not: that needs a series of observations over time, and we have a single point. So this page reports the state at the end of August 2026 and nothing about a rate of change.
The independent survey is cited with its date and coverage. Our own measurement was taken on 27 August 2026: 80 domains per zone drawn from those users brought to our tools, of which 56 answered in .ru and 57 in .com. This is not a sample of the Russian web and its level does not transfer to "all websites"; comparing the zones to each other is sound.
The world: top million, June 2026
Scott Helme’s Top 1 Million Analysis — The State of Crypto of 13 June 2026, 819,002 responding sites from Tranco Top 1 Million:
| Version | Sites | Share |
|---|---|---|
| TLS 1.3 | 576,464 | 70.4% |
| TLS 1.2 only | 70,395 | 8.6% |
| TLS 1.1 | 0 | 0% |
| TLS 1.0 | 106 | 0.01% |
Our measurement: .ru and .com run level
| Zone | Answered | TLS 1.3 | TLS 1.2 only | TLS 1.0 / 1.1 |
|---|---|---|---|---|
| .ru | 56 | 83.9% | 16.1% | 0% |
| .com | 57 | 80.7% | 19.3% | 0% |
The common expectation — that the Russian web trails — does not hold on this data. The zones run level, and .ru is marginally ahead, though a three-point difference across fifty-odd hosts establishes nothing.
Not one host in either zone supports legacy TLS 1.0 or 1.1 — exactly as in the top million, where they appear on zero and a hundred and six sites out of 819,000.
Our level sits above the top million (over 80% against 70.4%), which is expected: domains reach us when someone is already working on them, while the Tranco list includes long-abandoned sites. Compare the direction here, not the levels.
Where the difference does show
The gap lives not in the general sample but in its under-configured part. Separately we broke down 87 hosts graded B or C and looked at what keeps them from full marks on protocol:
| .ru (42 hosts) | .com (45 hosts) | |
|---|---|---|
| Support only TLS 1.2, without 1.3 | 60% | 38% |
Among hosts whose configuration is imperfect anyway, six in ten Russian ones cannot speak TLS 1.3, against fewer than four in ten for .com. That is the real difference: not old protocol left enabled, but the new one never enabled.
Caveat: 42 and 45 hosts is few, but a 22-point spread is large and matches the direction of the independent survey, where "1.2 only" also remains a visible share.
What a site owner should do
- Check whether TLS 1.3 is on for you. The SSL checker reports protocol versions alongside the grade and its component breakdown.
- Turn it on if it is not. On a modern server that is one directive; what changes and how 1.3 differs from 1.2 is covered separately.
- Do not spend time disabling 1.0 and 1.1 without first confirming they are enabled at all: no host in our sample supported them.
- Move on to HSTS. Our measurements find it missing on 83–87% of under-configured hosts in both zones, and it is the cheapest gap to close: HSTS and HSTS Preload.
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Do I need to explicitly enable TLS 1.3?
nginx 1.13+ with OpenSSL 1.1.1+ — TLS 1.3 default. You only need ssl_protocols TLSv1.2 TLSv1.3; (drop 1.0/1.1).
Is 0-RTT safe?
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When is TLS 1.2 deprecated?
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How to verify my TLS 1.3?
Enterno SSL Checker shows supported protocols. openssl s_client -tls1_3 — manual test.
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