200 Top SEO Ranking Factors September 2026

TOP SEO Factors for 2026-09 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Referring Domains Authority	-0.28	627	49	32 %	47 %
2	Number of Do Follow Backlinks Authority	-0.27	133206	2200	28 %	47 %
3	Number of Backlinks Authority	-0.27	134088	2283	32 %	48 %
4	Number of No Follow Backlinks Authority	-0.25	5365	150	22 %	48 %
5	Number of Unique LSI Words Used Diversity	-0.24	908	255	76 %	76 %
6	Load Time Milliseconds Performance	-0.24	21244	2048	77 %	85 %
7	Search Result Domain is .com, .net, or .org Other	-0.23	1	1	7 %	75 %
8	Search Result Domain is .com Other	-0.22	1	1	7 %	74 %
9	Has JSON-LD Schema Markup Relevancy	-0.21	1	1	45 %	75 %
10	Number of Images Size	-0.21	81	26	64 %	87 %
11	Number of Top 200 Shared Factors Used Diversity	-0.21	51	36	91 %	84 %
12	Number of Includes Technology	-0.21	54	23	69 %	78 %
13	Number of Top 100 Shared Factors Used Diversity	-0.21	38	27	91 %	83 %
14	Number of Top 50 Shared Factors Used Diversity	-0.21	16	11	91 %	81 %
15	Number of P Tags Size	-0.21	204	38	63 %	85 %
16	Word Count Size	-0.2	10144	1453	77 %	88 %
17	Unabridged Word Count Size	-0.2	12848	1793	77 %	88 %
18	Number of H1 Tags Size	-0.2	4	1	60 %	82 %
19	Number of Images with ALT Text Size	-0.2	67	19	59 %	87 %
20	Has Meta Charset Technology	-0.2	1	1	65 %	83 %
21	Number of Facebook Pages Authority	-0.2	10	2	45 %	85 %
22	Clean Text Kilobytes Size	-0.2	82	12	63 %	89 %
23	Number of Heading Tags Size	-0.2	70	20	65 %	88 %
24	Number of H2 Tags Size	-0.2	21	7	59 %	84 %
25	Number of HTML Tags Size	-0.19	2555	894	77 %	85 %
26	Number of CSS Includes Technology	-0.19	21	8	63 %	72 %
27	Variations in P Tags Relevancy	-0.19	3443	60	54 %	85 %
28	Variations in H1, H2, and H3 Tags Relevancy	-0.19	211	8	52 %	85 %
29	Variations in H1-H6 Tags Relevancy	-0.19	267	10	53 %	85 %
30	Search Result Number of Dirs in Path Other	-0.19	4	2	68 %	76 %
31	Number of DoFollow Links Authority	-0.19	333	105	71 %	84 %
32	Variations in H1 and H2 Tags Relevancy	-0.19	76	5	50 %	82 %
33	Number of Links Authority	-0.19	336	107	71 %	84 %
34	Average Words Per Sentence Size	-0.19	242	26	67 %	78 %
35	Number of HTTPS Links Authority	-0.19	335	106	71 %	84 %
36	Number of Unique Variations Used Diversity	-0.19	48	13	72 %	75 %
37	Variations in Div Tags Relevancy	-0.19	31244	335	63 %	85 %
38	Number of Factors Used Diversity	-0.19	396	175	92 %	79 %
39	Variations in LI Tags Relevancy	-0.19	1981	37	53 %	83 %
40	Number of Internal Links Authority	-0.19	312	95	69 %	82 %
41	Number of Instagram Pages Authority	-0.18	13	2	35 %	82 %
42	Number of Distinct Entities Used Diversity	-0.18	60	23	66 %	92 %
43	Entities in Sentences Relevancy	-0.18	1891	137	57 %	92 %
44	Variations in A Tags Relevancy	-0.18	4844	56	54 %	81 %
45	Variations in Search Result Document File Name Relevancy	-0.18	7	1	38 %	83 %
46	Entities in H2 Tags	-0.18	46	6	43 %	93 %
47	Number of Images without ALT Text Size	-0.18	36	8	45 %	86 %
48	Entities in the HTML Tag Relevancy	-0.18	1892	140	62 %	92 %
49	Number of HTML Comments Size	-0.18	492	58	60 %	83 %
50	Variations in H2 Tags Relevancy	-0.18	71	4	42 %	81 %
51	Number of External Links Authority	-0.18	38	13	65 %	87 %
52	Variations in H1 Tags Relevancy	-0.18	11	1	44 %	77 %
53	LSI Words in Sentences Relevancy	-0.18	3764	609	55 %	93 %
54	Flesch Kincaid Reading Grade Level Other	-0.18	6	1	88 %	84 %
55	Number of LinkedIn Pages Authority	-0.18	4	1	24 %	79 %
56	Number of H3 Tags Size	-0.18	37	9	50 %	86 %
57	Search Result Host Length Size	-0.17	22	16	77 %	77 %
58	Variation Count in Top 30KB Relevancy	-0.17	6580	76	57 %	77 %
59	Has Form Technology	-0.17	1	1	38 %	71 %
60	Search Result Domain Length Size	-0.17	22	16	77 %	77 %
61	Variations in Body Tags Relevancy	-0.17	97091	717	70 %	81 %
62	Number of DoFollow External Links Authority	-0.17	36	11	64 %	86 %
63	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.17	11	2	37 %	81 %
64	Variations in ALT Attributes Relevancy	-0.17	151	8	38 %	81 %
65	Leading Variations in H1-H6 Tags Relevancy	-0.17	12	2	39 %	82 %
66	Search Result Uses HTTPS Other	-0.17	1	1	75 %	72 %
67	Variations in HTML Tags Relevancy	-0.17	97091	703	68 %	83 %
68	Uses JSON-LD name Other	-0.17	1	1	47 %	71 %
69	Number of Facebook Accounts Authority	-0.17	3	1	19 %	78 %
70	Entities in H1 Tags	-0.17	5	2	43 %	88 %
71	Variations in Sentences Relevancy	-0.17	3407	72	62 %	82 %
72	Number of Social Pages Authority	-0.17	18	5	52 %	81 %
73	Number of Forms Technology	-0.17	12	2	40 %	77 %
74	Entities in Title Tag Relevancy	-0.17	14	3	56 %	91 %
75	Number Of JSON-LD Types Relevancy	-0.17	77	17	49 %	81 %
76	Percentage of DoFollow External Links Authority	-0.17	38	12	63 %	75 %
77	Variations in Span Tags Relevancy	-0.17	729	16	42 %	84 %
78	Number of Questions In Headings Size	-0.17	9	2	33 %	81 %
79	Number of Social Accounts Authority	-0.16	5	2	31 %	79 %
80	Variations in A Tag HREF Attributes Relevancy	-0.16	2213	55	48 %	84 %
81	Variations in Search Result URL Path Relevancy	-0.16	9	1	40 %	81 %
82	Entities in H3 Tags	-0.16	63	7	36 %	93 %
83	Percentage of DoFollow Links Authority	-0.16	99	78	71 %	75 %
84	Term Frequency Relevancy	-0.16	6	3	68 %	77 %
85	Headings Has Question Other	-0.16	1	1	33 %	76 %
86	Variations in Distinct A Tag HREF Attributes Relevancy	-0.16	1343	35	48 %	84 %
87	Variations in Main Tags Relevancy	-0.16	15167	173	31 %	79 %
88	Has Entities in H2 Tags Relevancy	-0.16	1	1	44 %	86 %
89	LSI Words in H2 Tags Relevancy	-0.16	69	17	45 %	89 %
90	Number of Sentences Size	-0.16	726	138	74 %	82 %
91	Uses JSON-LD url Other	-0.16	1	1	43 %	70 %
92	Page Size Kilobytes Size	-0.16	933	284	76 %	60 %
93	Percentage of DoFollow Internal Links Authority	-0.16	91	66	69 %	69 %
94	Variations in H3 Tags Relevancy	-0.16	135	4	34 %	83 %
95	Is Home Page Other	-0.16	1	1	15 %	55 %
96	Variations in Search Result Link Text Relevancy	-0.16	10	2	75 %	68 %
97	Has Meta Viewport Technology	-0.16	1	1	73 %	72 %
98	Has Entities in H1 Tags Relevancy	-0.16	1	1	45 %	85 %
99	Has Meta Robots Other	-0.15	1	1	24 %	72 %
100	Variations in Search Result Display URL Relevancy	-0.15	10	2	75 %	69 %
101	Inline CSS Kilobytes Size	-0.15	154	53	59 %	82 %
102	Variations in Nav Tags Relevancy	-0.15	9938	86	40 %	80 %
103	Is Article Page Other	-0.15	1	1	37 %	66 %
104	Variations in OpenGraph Title Relevancy	-0.15	7	1	46 %	61 %
105	Variations in the Title Tag Relevancy	-0.15	31	2	54 %	71 %
106	Number of Twitter Accounts Authority	-0.15	2	1	14 %	78 %
107	Uses JSON-LD description Other	-0.15	1	1	38 %	66 %
108	Variations in Meta Description Relevancy	-0.15	44	2	50 %	70 %
109	Variations in Search Result URL Relevancy	-0.15	20	2	49 %	75 %
110	Variations in First 100 Words Relevancy	-0.15	187	9	56 %	78 %
111	Has US Phone Number Trust	-0.15	1	1	31 %	70 %
112	Number of Questions In H3 Tags Size	-0.15	5	2	18 %	75 %
113	Search Result Summary Length Size	-0.15	261	155	91 %	68 %
114	Number of Absolute URLs Authority	-0.15	1127	237	75 %	70 %
115	Variations in Absolute URLs Relevancy	-0.15	6009	94	52 %	83 %
116	Variation Density in Top 30KB Relevancy	-0.15	298	6	56 %	70 %
117	Has Apple Touch Icon Technology	-0.15	1	1	43 %	75 %
118	Variations in Footer Tags Relevancy	-0.15	4986	42	35 %	77 %
119	Leading Variations in H1 Tags Relevancy	-0.15	1	1	21 %	74 %
120	Title Word Count Size	-0.15	29	8	75 %	66 %
121	Inline JavaScript Kilobytes Size	-0.15	557	116	71 %	56 %
122	Number of JavaScript Includes Technology	-0.15	40	16	71 %	77 %
123	Number Of Claimed Brands Other	-0.15	38	3	21 %	76 %
124	LSI Words in H1 Tags Relevancy	-0.15	13	4	45 %	87 %
125	Title Length Size	-0.15	240	54	75 %	64 %
126	Variations in Section Tags Relevancy	-0.15	1231	32	34 %	82 %
127	Leading Variations in H2 Tags Relevancy	-0.15	4	1	22 %	79 %
128	Variations in the Canonical URL Relevancy	-0.15	44	2	42 %	75 %
129	Number of Questions In H2 Tags Size	-0.15	4	1	21 %	81 %
130	Number of US Phone Numbers Trust	-0.14	108	8	32 %	82 %
131	Has Contact Page Trust	-0.14	1	1	49 %	61 %
132	Variations in OpenGraph Description Relevancy	-0.14	27	2	44 %	67 %
133	Has Privacy Policy Trust	-0.14	1	1	45 %	64 %
134	Variations in Strong Tags Relevancy	-0.14	43	3	24 %	80 %
135	LSI Words in H3 Tags Relevancy	-0.14	72	18	39 %	90 %
136	Number of Email Addresses Trust	-0.14	19	4	39 %	75 %
137	Clean Keyword Density in the HTML Tag Relevancy	-0.14	204	6	59 %	67 %
138	Exact Matches in the HTML Tag Relevancy	-0.14	324	9	25 %	82 %
139	Uses JSON-LD datePublished Other	-0.14	1	1	28 %	67 %
140	Number of H4 Tags Size	-0.14	12	3	28 %	78 %
141	Entities in Meta Description Tag Relevancy	-0.14	17	3	49 %	85 %
142	Is OpenGraph Type Article Technology	-0.14	1	1	26 %	60 %
143	Uses JSON-LD WebPage Other	-0.14	1	1	28 %	65 %
144	Uses Schema datemodified Other	-0.14	1	1	27 %	67 %
145	Uses Schema organization Other	-0.14	1	1	29 %	64 %
146	Number of Questions Size	-0.14	55	13	59 %	70 %
147	Has Entities in H3 Tags Relevancy	-0.14	1	1	36 %	85 %
148	Uses Schema webpage Other	-0.14	1	1	29 %	67 %
149	Number of Prices Size	-0.14	484	108	61 %	76 %
150	Uses Schema name Other	-0.14	1	1	54 %	52 %
151	Leading Variations in Title Tag Relevancy	-0.14	1	1	26 %	74 %
152	Uses JSON-LD ImageObject Other	-0.14	1	1	27 %	70 %
153	Variations in Script Tags Relevancy	-0.14	29554	217	58 %	75 %
154	Has Schema Markup Relevancy	-0.14	1	1	57 %	57 %
155	Number of Nofollow Links Authority	-0.14	23	3	18 %	79 %
156	Variations in Article Tags Relevancy	-0.14	668	21	21 %	78 %
157	Has Email Trust	-0.14	1	1	38 %	67 %
158	TF/IDF Relevancy	-0.13	1	1	51 %	71 %
159	Word Count in Meta Description Size	-0.13	54	18	62 %	64 %
160	LSI Words in Title Tag Relevancy	-0.13	28	5	56 %	83 %
161	Uses Schema website Other	-0.13	1	1	30 %	66 %
162	Meta Description Length Size	-0.13	394	115	62 %	63 %
163	Uses JSON-LD dateModified Other	-0.13	1	1	26 %	69 %
164	Uses JSON-LD Organization Other	-0.13	1	1	28 %	68 %
165	Number of Meta Generator Tags Technology	-0.13	2	1	29 %	72 %
166	Exact Matches in Top 30KB Relevancy	-0.13	9	2	16 %	76 %
167	Has FavIcon Technology	-0.13	1	1	68 %	61 %
168	Number of NoFollow External Links Authority	-0.13	10	2	13 %	79 %
169	Has Meta Description Relevancy	-0.13	1	1	60 %	58 %
170	Uses JSON-LD BreadcrumbList Other	-0.13	1	1	31 %	65 %
171	Uses Schema url Other	-0.13	1	1	51 %	53 %
172	Uses JSON-LD ListItem Other	-0.13	1	1	32 %	65 %
173	Variations making whole A Tags Relevancy	-0.13	22	2	26 %	77 %
174	Has Terms of Service Trust	-0.13	1	1	31 %	56 %
175	Has Canonical URL Authority	-0.13	1	1	65 %	61 %
176	Has OpenGraph Type Relevancy	-0.13	1	1	56 %	60 %
177	Has RSS Link Authority	-0.13	1	1	23 %	65 %
178	Exact Matches in H1-H6 Tags Relevancy	-0.13	8	1	15 %	81 %
179	Variations in I Tags Relevancy	-0.13	138	5	17 %	80 %
180	Variations Making Whole Span Tags Relevancy	-0.13	24	1	18 %	77 %
181	Percentage of NoFollow Links Authority	-0.13	7	2	16 %	77 %
182	Variations Making Whole LI Tags Relevancy	-0.13	7	1	23 %	77 %
183	Search Result URL Length Size	-0.13	206	65	90 %	41 %
184	Entities in H4 Tags	-0.13	10	2	16 %	90 %
185	Uses Schema searchaction Other	-0.13	1	1	20 %	64 %
186	Uses JSON-LD SearchAction Other	-0.13	1	1	19 %	65 %
187	Has OpenGraph Image Relevancy	-0.13	1	1	48 %	54 %
188	LSI Words in Meta Description Tag Relevancy	-0.13	29	9	48 %	81 %
189	Uses JSON-LD WebSite Other	-0.13	1	1	28 %	69 %
190	Has XMLRPC Technology	-0.13	1	1	22 %	64 %
191	Is Store Page Other	-0.13	1	1	35 %	66 %
192	Uses Schema addressregion Other	-0.13	1	1	18 %	58 %
193	Uses Schema postaladdress Other	-0.13	1	1	19 %	63 %
194	Uses Schema addresslocality Other	-0.13	1	1	19 %	63 %
195	Uses Schema inlanguage Other	-0.13	1	1	26 %	64 %
196	Variations in Search Result Summary Relevancy	-0.13	59	3	76 %	67 %
197	Percentage of NoFollow External Links Authority	-0.13	5	1	12 %	78 %
198	Uses JSON-LD image Other	-0.13	1	1	15 %	69 %
199	Uses Schema image Other	-0.13	1	1	18 %	66 %
200	Uses Schema description Other	-0.13	1	1	45 %	48 %

Measures 154554 SEO Factors

152832 Built-In SEO Factors

143605 On-page SEO Factors

9227 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-09 previous