UPDATE2: Seems this all comes from Baidu crawlers, here's some outputcreated by GoAccess analyzing our logs. We've restricted the the following user-agent which seems to be used by them:
Mozilla/5.0 (iPhone; CPU iPhone OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1
Top visitor hosts sorted by hits - [avg. time served]
2535 13 0.80% 13.18 MiB 123.125.71.42
~T~\ ~T~@ baiduspider-123-125-71-42.crawl.baidu.com
2526 13 0.80% 13.72 MiB 123.125.71.49
~T~\ ~T~@ baiduspider-123-125-71-49.crawl.baidu.com
2501 13 0.79% 12.86 MiB 123.125.71.17
~T~\ ~T~@ baiduspider-123-125-71-17.crawl.baidu.com
2501 13 0.79% 13.29 MiB 123.125.71.41
~T~\ ~T~@ baiduspider-123-125-71-41.crawl.baidu.com
2485 13 0.79% 13.22 MiB 123.125.71.40
~T~\ ~T~@ baiduspider-123-125-71-30.crawl.baidu.com
2484 14 0.79% 13.56 MiB 123.125.71.30
~T~\ ~T~@ baiduspider-123-125-71-30.crawl.baidu.com
2474 13 0.78% 13.01 MiB 123.125.71.18
~T~\ ~T~@ baiduspider-123-125-71-18.crawl.baidu.com
2464 13 0.78% 12.91 MiB 123.125.71.39
~T~\ ~T~@ baiduspider-123-125-71-39.crawl.baidu.com
2459 13 0.78% 13.26 MiB 123.125.71.44
~T~\ ~T~@ baiduspider-123-125-71-44.crawl.baidu.com
2441 14 0.77% 13.05 MiB 123.125.71.43
~T~\ ~T~@ baiduspider-123-125-71-43.crawl.baidu.com
2439 14 0.77% 12.99 MiB 123.125.71.12
~T~\ ~T~@ baiduspider-123-125-71-12.crawl.baidu.com
2434 14 0.77% 12.90 MiB 123.125.71.16
~T~\ ~T~@ baiduspider-123-125-71-16.crawl.baidu.com
2428 13 0.77% 12.81 MiB 123.125.71.45
~T~\ ~T~@ baiduspider-123-125-71-45.crawl.baidu.com
2427 13 0.77% 12.53 MiB 123.125.71.36
~T~\ ~T~@ baiduspider-123-125-71-36.crawl.baidu.com
Top visitor hosts sorted by hits - [avg. time served]
2419 13 0.77% 13.03 MiB 123.125.71.33
~T~\ ~T~@ baiduspider-123-125-71-33.crawl.baidu.com
2419 13 0.77% 13.15 MiB 123.125.71.48
~T~\ ~T~@ baiduspider-123-125-71-48.crawl.baidu.com
2409 13 0.76% 12.40 MiB 123.125.71.34
~T~\ ~T~@ baiduspider-123-125-71-34.crawl.baidu.com
2408 14 0.76% 12.98 MiB 123.125.71.14
~T~\ ~T~@ baiduspider-123-125-71-14.crawl.baidu.com
2408 13 0.76% 12.76 MiB 123.125.71.47
~T~\ ~T~@ baiduspider-123-125-71-47.crawl.baidu.com
2402 13 0.76% 13.11 MiB 123.125.71.31
~T~\ ~T~@ baiduspider-123-125-71-31.crawl.baidu.com
2400 13 0.76% 12.85 MiB 123.125.71.20
~T~\ ~T~@ baiduspider-123-125-71-20.crawl.baidu.com
2387 13 0.76% 12.50 MiB 123.125.71.46
~T~\ ~T~@ baiduspider-123-125-71-46.crawl.baidu.com
2355 13 0.75% 12.40 MiB 123.125.71.15
~T~\ ~T~@ baiduspider-123-125-71-15.crawl.baidu.com
2340 13 0.74% 12.36 MiB 123.125.71.13
~T~\ ~T~@ baiduspider-123-125-71-13.crawl.baidu.com
2332 14 0.74% 12.12 MiB 123.125.71.38
~T~\ ~T~@ baiduspider-123-125-71-38.crawl.baidu.com
2320 14 0.74% 12.56 MiB 123.125.71.32
~T~\ ~T~@ baiduspider-123-125-71-32.crawl.baidu.com
2309 14 0.73% 12.46 MiB 123.125.71.19
~T~\ ~T~@ baiduspider-123-125-71-19.crawl.baidu.com
2247 13 0.71% 11.54 MiB 220.181.108.120
~T~\ ~T~@ baiduspider-220-181-108-120.crawl.baidu.com
UPDATE: could it be coming from Baidu? Why would it then run the Google Analytics code?
During the last few days there has been a huge surge in Google Analytics reported number of visits from China. Over 99% of these are a single page visit, which is really not how it is on our website. So obviously we suspect bots and something fishy going on but why would these be reported on Google Analytics? Does it make sense for them to run the GA script if they want to scrape us?